Guest guest Posted August 27, 2011 Report Share Posted August 27, 2011 Hi, I have an ongoing fight with the QE in Birmingham. The NHS are basically forcing me to go the ombudsman about it - they have already forced me down their own complaints procedure, but I want to reply to some of their comments with hard evidence, but I am having problems locating what I need. My brain is not at it's best at the moment - and I'm just getting frustrated. If you know of hard evidence from well respected (in the NHS's eyes) sources that contradicts or if anyone wants to comment on the following please feel free to rip what they have said to shreds and send me a link if you can - I'd really appreciate it! 1. There is a large body of evidence, and associated local, national and international guidelines indicating that a rise in serum TSH is an essential prerequisite for the diagnosis of primary hypothyroidism. 2. Dr F has tried to explain the potential long term consequences of treatment with exogenous thyroid hormones, especially as you have indicated that thyroid function testing whilst on treatment has revealed suppression of TSH, which is a biochemical marker of thyroid hormone excess. Areas of clinical concern associated with long term TSH suppression from exogenous thyroid hormone treatment would be augmentation of risk of atrial fibrillation and osteoporosis. 3. You had a short synacthen test to assess adrenocortical reserve (a test to see if you are producing sufficient adrenal steroid hormones) in May 2010 and this was found to be more than adequate, with a peak serum cortisol value of 901nmol/l (Le. a response to the injection showing very healthy adrenal steroid production). 4. You were again found to have entirely normal test of thyroid function. A check of serum prolactin, gonadotrophins, random oestradiol and IGF- 1 (various pituitary and other hormones) were all normal. 5. In the absence of a rise in TSH (and in the absence of a fall in serum free T4 and T3 (the main hormones produced by the thyroid gland) there is no biochemical evidence of primary hypothyroidism in your case. Consequently there is no established indication for thyroxine replacement therapy. Furthermore, in the absence of a diagnosis of primary hypothyroidism it is not logical, or good practice, to ascribe a patient's symptoms to that diagnosis. 6. you request further information regarding the diagnosis and management of hypothyroidism with University Hospitals Birmingham Foundation Trust. The practice of the large and expert team in endocrinololoy is indeed in accord with the British and American Thyroid Associations and readily available on their websites. 7. There is considerable peer reviewed and published information in the medical literature on the potential risks associated with thyroxine treatment in doses causing suppression of serum TSH. I think that's the main ones - hope everyone's blood pressure is ok after reading it!! From a very cross and irritated Dawn Quote Link to comment Share on other sites More sharing options...
Guest guest Posted August 27, 2011 Report Share Posted August 27, 2011 Hi Dawn - I have also been down the complaints process as far as the ombudsman . I did not have the problem of disputing tests as there were no tests except some old TSH tests to consider. I most definitely think that the ombudsman is a good idea however there are a few things to bear in mind . I had ICAS at the complaints meeting as an independant witness and after that I kept her informed and she was helpful in getting replies from the hospital . As far as the ombudsman goes they have certain criteria to work to [it is worth printing them off the internet ] They will tell you that they are lay not medical people and hence use a medical adviser . You are entitled to see this medical report-I found some important items missing and responded where I found gaps . If you provide evidence [i did some ] any medical evidence should be considered and commented on by this advisor .If not why not!!!!! Studies like the HUNT STUDIES from Norway about colesterol and heart disease would have been useful. What you are not allowed to see is what is said by the hospital so try not to leave anything out. It is difficult with brain fog and I could have prepared better if it happened now and I have improved greatly with Dr P's help -yes we are at a disadvantage because of this brain fog but it is no reason not to try as the more complaints about this the better . Good luck Quote Link to comment Share on other sites More sharing options...
Guest guest Posted August 27, 2011 Report Share Posted August 27, 2011 >> Hi,> > I have an ongoing fight with the QE in Birmingham. The NHS are basically forcing me to go the ombudsman about it - they have already forced me down their own complaints procedure, but I want to reply to some of their comments with hard evidence, but I am having problems locating what I need. My brain is not at it's best at the moment - and I'm just getting frustrated. > > If you know of hard evidence from well respected (in the NHS's eyes) sources that contradicts or if anyone wants to comment on the following please feel free to rip what they have said to shreds and send me a link if you can - I'd really appreciate it!> > 1. There is a large body of evidence, and associated local, national and international guidelines indicating that a rise in serum TSH is an essential prerequisite for the diagnosis of primary hypothyroidism. NOT TRUE> > 2. Dr F has tried to explain the potential long term consequences of treatment with exogenous thyroid hormones, especially as you have indicated that thyroid function testing whilst on treatment has> revealed suppression of TSH, which is a biochemical marker of thyroid> hormone excess. NOT TRUE Areas of clinical concern associated with long term TSH suppression from exogenous thyroid hormone treatment would be> augmentation of risk of atrial fibrillation and osteoporosis.> NOT TRUE - there are many more dangers with not having enough thyroxine > 3. You had a short synacthen test to assess adrenocortical reserve (a test to see if you are producing sufficient adrenal steroid hormones) in May 2010 and this was found to be more than adequate, with a peak serum cortisol value of 901nmol/l (Le. a response to the injection showing very healthy adrenal steroid production). What time of day? And do these people not read the information that comes with Levothyroxine?> > 4. You were again found to have entirely normal test of> thyroid function. A check of serum prolactin, gonadotrophins, random> oestradiol and IGF- 1 (various pituitary and other hormones) were all normal. By whose measures?> > 5. In the absence of a rise in TSH (and in the absence of a fall in serum free T4 and T3 (the main hormones produced by the thyroid gland) there is no biochemical evidence of primary hypothyroidism in your case. Consequently there is no established indication for thyroxine replacement therapy. Furthermore, in the absence of a diagnosis of primary hypothyroidism it is not logical, or good practice, to> ascribe a patient's symptoms to that diagnosis. Again NOT TRUE> > 6. you request further information regarding the diagnosis and management of hypothyroidism with University Hospitals Birmingham Foundation Trust. The practice of the large and expert team in endocrinololoy is indeed in accord with the British and American Thyroid Associations and readily available on their websites. NHS guidelines state that thyroid diagnosis and management should not rely on blood tests alone. > > 7. There is considerable peer reviewed and published information in the medical literature on the potential risks associated with thyroxine treatment in doses causing suppression of serum TSH. There's way more that show that this is rubbish!! > > I think that's the main ones - hope everyone's blood pressure is ok after reading it!!> > From a very cross and irritated > Dawn> Quote Link to comment Share on other sites More sharing options...
Guest guest Posted August 28, 2011 Report Share Posted August 28, 2011 Hi Dawn " If you know of hard evidence from well respected (in the NHS's eyes) sources that contradicts or if anyone wants to comment on the following please feel free to rip what they have said to shreds and send me a link if you can - I'd really appreciate it! " OK - so you DID ask. Keep scrolling. This is long. The biggest problem here appears to centre around the level of TSH as the be all and end all of reaching a diagnosis. Problem is Dawn, that no matter what studies you show the NHS medical practitioners, the majority refuse to acknowledge it if it goes against what they have been brought up to believe. They take their lead about thyroid disease from the British Thyroid Association who have prepared NO guidelines on the diagnosis and management of those with symptoms of hypothyroidism. Neither have NICE prepared any guidelines on the diagnosis and management of hypothyroidism. All the BTA have done is, under the umbrella of the RCP written a statement on the diagnosis and management of PRIMARY hypothyroidism and nothing else. Primary hypothyroidism, means the THYROID GLAND doesn't produce an adequate amount of thyroxine (T4). W (** - SEE BELOW) - or - peripheral resistance to thyroid hormones at the cellular level. It is not due to a lack of thyroid hormones. Normal amounts of thyroid hormones and TSH are usually detected by blood tests; therefore blood tests do NOT detect euthyroid hypometabolism. This is usually inherited. However environmental toxins may also cause or exacerbate the problem. The pervasiveness of euthyroid hypometabolism has yet to be recognised by the majority of mainstream medicine but already is in epidemic proportions. Euthyroid hypometabolism produces the same sort of symptoms that primary, secondary, tertiary or other type of hypothyroidism does, and needs treatment using the active thyroid hormone T3 - but doctors cannot diagnose this by using TSH, free T4 or free T3 blood tests. Two papers stand out as demonstrations of the limits of the customary thyroid practice. First, Drs. Baisier, Hertoghe, and Eeckhaut (Thyroid Insufficiency? Is Thyroxine the Only Valuable Drug?) studied the failures of the customary practice of endocrinology and found that these subjects had the same collection of symptoms as patients with deficient thyroid gland secretion (the proper definition of hypothyroidism). They found an evaluation of eight nonspecific symptoms is a good clinical diagnostic. They also found diagnostic information in the subjects urine that correlated better with the symptoms. And finally, in a follow-up study, they treated these failed subjects with desiccated thyroid successfully. [1] Second, Dr. Marshall Goldberg, discovered euthyroid hypometabolism in 6% of his 500 subjects. They had the list of symptoms of hypothyroidism but were not found to have any deficiency of the secretion by the thyroid gland. [2,3] Thus, Dr. Goldberg explained the existence of symptoms in spite of a thyroid gland function test (a.k.a. TFT) within reference ranges. 1. Baisier, W V, Herto ghe, J., Bee khaut, W ., Thyroid I nsufficiency? Is T hyroxine the O nly Valuab le Drug, J Nutr and Environ Med, September 2001, 11(3):159-166 2. Goldb erg M, T he Case F or Euthyro id Hypo metabolism , Am J Med Sc October, 1960 pgs 479-493 3. Goldberg M, Dagnosis of Euthyroid Hypometabolism, Am J Obst & Gynec, 81(5): 1053-1058, 1961 You will note that the BTA have failed to back up any single statement with references to scientific evidence to any research or studies - which makes that particular document their OPINION only. Go to our web site and read through some of the responses/rebuttals to this misleading (and in parts, incorrect) statement that is on their web site http://www.tpa-uk.org.uk/rcp_campaign09.php .Through reading these you will find a lot of references to show that what the University Hospitals Birmingham Foundation Trust are recommending, is actually wrong and there is much research and studies that have been done to show this. You can give them lots of references from these docuoments, but you must INSIST that they also give you references to all the research and studies to back up their own statements. It is NOT enough that they quote to you the American and British Thyroid Association web sites. Don't they even question whether any of what they read is their opinion or a statement of fact? " 1. There is a large body of evidence, and associated local, national and international guidelines indicating that a rise in serum TSH is an essential prerequisite for the diagnosis of primary hypothyroidism. " There is also a large body of evidence and associated local, national and international guidelines indicating that the results of a TSH ONLY should not be a pre-requisite in isolation to other thyroid function tests. See below: DISCUSSIONS ON THYROID DIAGNOSIS SERUM TSH: IS THE TSH SERUM MEASUREMENT ALONE SUFFICIENT FOR DIAGNOSIS AND FOLLOW-UP OF THYROID DEFICIENCY? Claim: TSH is the first line test to do. It is sufficient to diagnose all forms of eu-, hypo- and hyperthyroidism. No other test is necessary for the diagnosis. Facts: TSH is often insufficient on its own to diagnose between eu-, hypo- and hyperthyroidism, particularly to diagnose milder, borderline states of hypothyroidism. Other tests are necessary, as is a complete clinical evaluation (medical history, actual complaints, physical examination) of the patient. Doubts on the usefulness of the serum TSH test alone for diagnosis. Overreliance on laboratory tests without clinical evaluation may lead to considerable diagnostic errors 2. Nicoloff JT, Spencer CA. The use and misuse of the sensitive thyrotropin assay. J Clin Endocrinol Metab. 1990;71:553-8. 3. De Los Santos ET, Mazzaferri EL. Sensitive thyroid-stimulating hormone assays: Clinical applications and limitations. Compr Ther. 1988; 14(9): 26-33. 4. Becker DV, Bigos ST, Gaitan E, JCrd, rallison ML, Spencer CA, Sugarawa M, Van Middlesworth L, Wartofsky L. Optimal use of blood tests for assessment of thyroid function. JAMA 1993 Jun 2; 269: 273 (“the decision to initiate therapy shoul be based on both clinical and laboratory findings and not solely on the results of a single laboratory test”) 5. Rippere V. Biochemical victims: False negative diagnosis through overreliance on laboratory results—a personal report. Med Hypotheses. 1983; 10(2): 113. Discussions and controversy in medical associations and journals on the TSH reference range 6. Surks MI, Ortiz E, s GH, Sawin CT, Col NF, Cobin RH, lyn JA, Hershman JM, Burman KD, Denke MA, Gorman C, RS, Weissman NJ. Subclinical thyroid disease: scientific review and guidelines for diagnosis and management. JAMA. 2004;291:228–38 (conclusions of a consensus panel of the Endocrine Society, the American Thyroid Association,and American Association of Clinical Endocrinology. Although the panel concluded that there was good data that patients with slight elevations of TSH above 4.5 may progress to overt hypothyroidism, and that levothyroxine therapy would prevent symptoms, they did not agree that early treatment provided any benefit!) 7. Dickey RA, Wartofsky L, Feld S. Optimal thyrotropin level: normal ranges and reference intervals are not equivalent. Thyroid. 2005 Sep;15(9):1035-9 8. Wartofsky L, Dickey RA. The evidence for a narrower thyrotropin reference range is compelling. J Clin Endocrinol Metab. 2005 Sep;90(9):5483-8 (remarkable article of which a lot of the following information is extracted) 9. Gharib H, Tuttle RM, Baskin HJ, Fish LH, Singer PA, McDermott MT. Subclinical thyroid dysfunction: a joint statement on management from the American Association of Clinical Endocrinologists, the American Thyroid Association, and The Endocrine Society. J Clin Endocrinol Metab. 2005;90:581–5 10. Surks MI. Commentary: subclinical thyroid dysfunction: a joint statement on management from the American Association of Clinical Endocrinologists, the American Thyroid Association, and The Endocrine Society. J Clin Endocrinol Metab. 2005;90:586–7 11. Ringel MD, Mazzaferri EL. Editorial: subclinical thyroid dysfunction: can there be a consensus about the consensus? J Clin Endocrinol Metab. 2005;90:588–90 12. Pinchera A. Subclinical thyroid disease: to treat or not to treat? Thyroid. 2005;15:1–2 18 Studies that show that the serum TSH reference range of 0.1-5.1 mU/liter for a POPULATION is too large. Studies indicating a population mean value of 1.5 mU/liter for an iodine-sufficient population 13. Vanderpump MPJ, Tunbridge WMG, French JM, Appleton D, Bates D, F, Grimley J, Hasan DM, Rodgers H, Tunbridge F. The incidence of thyroid disorders in the community: a twentyyear follow-up of the Whickham Survey. Clin Endocrinol (Oxf). 1995;43:55–68 14. Hollowell JG, Staehling NW, Flanders WD, Gunter EW, Spencer CA, Braverman LE. Serum TSH, T4, and thyroid antibodies in the United States population (1988 to 1994): National Health and Nutrition Examination Survey (NHANES III). J Clin Endocrinol Metab. 2002; 87:489–99 15. Andersen S, sen KM, Brunn NH, Laurberg P. Narrow individual variations in serum T4 and T3 in normal subjects: a clue to the understanding of subclinical thyroid disease. J Clin Endocrinol Metab. 2002;87:1068–72 16. Demers LM, Spencer CA. Laboratory medicine practice guidelines: laboratory support for the diagnosis and monitoring of thyroid disease. Clin Endocrinol (Oxf). 2003;58:138–40 17. Baloch Z, Carayon P, Conte-Devolx B, Demers LM, Feldt-Rasmussen U, Henry JF, LiVosli VA, Niccoli-Sire P, R, Ruj J, Smyth PP, Spencer CA, Stockigt JR, Guidelines Committee, National Academy of Clinical Biochemistry 2003 Laboratory medicine practice guidelines. Laboratory support for the diagnosis and monitoring of thyroid disease. Thyroid. 2003 Jan;13(1):3-126 A longitudinal study in diabetics where a baseline TSH levels above the 1.53 mU/liter predicted subsequent thyroid dysfunction, whereas no thyroid dysfunction if TSH levels < 1.53 mU/liter, the reference range for diabetics should then be 0.4-1.52 mU/liter 18. Warren RE, Perros P, Nyirenda MJ, Frier BM. Serum thyrotropin is a better predictor of future thyroid dysfunction than thyroid autoantibody status in biochemically euthyroid patients with diabetes: implications for screening. Thyroid. 2004;14:853–7 If the serum TSH reference range would be based upon a cohort of truly normal individuals with no personal or family history of thyroid dysfunction, no visible or palpable goiter, not taking any medication, who are seronegative for thyroid preoxidase antibodies, and whose blood samples are drawn fasting in the morning hours (06–10 h), the TSH reference range would become 0.4–2.5 mU/L (Demers & co, Baloch & co.) 19. Demers LM, Spencer CA. Laboratory medicine practice guidelines: laboratory support for the diagnosis and monitoring of thyroid disease. Clin Endocrinol (Oxf). 2003;58:138–40 20. Hollowell JG, Staehling NW, Flanders WD, Gunter EW, Spencer CA, Braverman LE. Serum TSH, T4, and thyroid antibodies in the United States population (1988 to 1994): National Health and Nutrition Examination Survey (NHANES III). J Clin Endocrinol Metab. 2002; 87:489–99 21. Baloch Z, Carayon P, Conte-Devolx B, Demers LM, Feldt-Rasmussen U, Henry JF, LiVosli VA, Niccoli-Sire P, R, Ruj J, Smyth PP, Spencer CA, Stockigt JR, Guidelines Committee, National Academy of Clinical Biochemistry 2003 Laboratory medicine practice guidelines. Thyroid. 2003 Jan;13(1):3-126 When data for subjects with positive TPOAb or a family history of autoimmune thyroid disease are excluded, the normal reference interval becomes much tighter, i.e. 0.4–2.0 mU/liter. This tighter reference range may certainly be more applicable to African-Americans, who have a lower mean TSH 22. Hollowell JG, Staehling NW, Flanders WD, Gunter EW, Spencer CA, Braverman LE. Serum TSH, T4, and thyroid antibodies in the United States population (1988 to 1994): National Health and Nutrition Examination Survey (NHANES III). J Clin Endocrinol Metab. 2002; 87:489–99 23. Demers LM, Spencer CA. Laboratory medicine practice guidelines: laboratory support for the diagnosis and monitoring of thyroid disease. Clin Endocrinol (Oxf). 2003;58:138–40 19 Publications with data to support a more narrow reference range for serum TSH that would be obtained when persons with diffuse hypoechogenicity of the thyroid on ultrasound, a condition that precedes thyroid peroxidase antibody positivity in autoimmune thyroid disease, would be excluded 24. Pedersen OM, Aardal NP, Larssen TB, Varhaug JE, Myking O, Vik-Mo H. The value of ultrasonography in predicting autoimmune thyroid disease. Thyroid. 2000;10:251–9 For the American Association of Clinical Endocrinologists the revised reference TSH range is 0.3– 3.0 mU/L 25. American Association of Clinical Endocrinologists. American Association of Clinical Endocrinologists medical guidelines for clinical practice for the evaluation and treatment of hyperthyroidism and hypothyroidism. Endocr Pract. 2002;8:457–69 A study, which suggests that the serum TSH cut-off point between hypo- and euthyroidism is 2, not 4 or 5.5 27. Michalopoulou G, Alevizaki M, Piperingos G, Mitsibounas D, Mantzos E, Adampoulos P, Koutras DA. High serum cholesterol levels in persons with 'high-normal' TSH levels: Should one extend the definition of subclinical hypothyroidism? Eur J Endocrinol. 1998 Feb;138(2):141-5(Treating TPO antibody-positive hypercholesterolemic patients with TSH levels between 2-4 mU/L with low dose levothyroxine normalizes TSH levels and improves the lipid profile) In 2003, the National Academy of Clinical Biochemistry (NACB) has reduced the upper limit of the reference range from 5.5 to 4.1 mU/L, but stating also that " greater than 95% of healthy, euthyroid subjects have a serum TSH concentration between 0.4 - 2.5 mU/L " . " .. patients with a serum TSH >2.5 mU/L, when confirmed by repeat TSH measurement made after 3 to 4 weeks, may be in the early stages of thyroid failure, especially if thyroid peroxidise antibodies are detected” 28. Baloch Z, Carayon P, Conte-Devolx B, Demers LM, Feldt-Rasmussen U, Henry JF, LiVosli VA, Niccoli-Sire P, R, Ruj J, Smyth PP, Spencer CA, Stockigt JR, Guidelines Committee, National Academy of Clinical Biochemistry 2003 Laboratory medicine practice guidelines. Thyroid. 2003 Jan;13(1):3-126 Supporters of the recommendations of the consensus panel (Endocrine Society, American Association of Clinical Endocrinologists, American Thyroid Association) promote a target TSH range of 1.0–1.5 mU/liter in patients already receiving T4 therapy 29. Baloch Z, Carayon P, Conte-Devolx B, Demers LM, Feldt-Rasmussen U, Henry JF, LiVosli VA, Niccoli-Sire P, R, Ruj J, Smyth PP, Spencer CA, Stockigt JR, Guidelines Committee, National Academy of Clinical Biochemistry 2003 Laboratory medicine practice guidelines. Thyroid. 2003 Jan;13(1):3-126 The lower end of the normal or reference range for TSH lies between 0.2 and 0.4 mU/liter, as indicated by a number of clinical studies 30. Baloch Z, Carayon P, Conte-Devolx B, Demers LM, Feldt-Rasmussen U, Henry JF, LiVosli VA, Niccoli-Sire P, R, Ruj J, Smyth PP, Spencer CA, Stockigt JR, Guidelines Committee, National 20 Academy of Clinical Biochemistry 2003 Laboratory medicine practice guidelines. Thyroid. 2003 Jan;13(1):3-126 31. Parle JV, lyn JA, Cross KW, SC, Sheppard MC. Prevalence and follow-up of abnormal thyrotrophin (TSH) concentrations in the elderly in the United Kingdom. Clin Endocrinol (Oxf). 1991;34:77-83 32. Warren RE, Perros P, Nyirenda MJ, Frier BM. Serum thyrotropin is a better predictor of future thyroid dysfunction than thyroid autoantibody status in biochemically euthyroid patients with diabetes: implications for screening. Thyroid. 2004;14:853–7 33. Canaris GJ, Manowitz NR, Mayor G, Ridgway EC. The Colorado thyroid disease prevalence study. Arch Intern Med. 2000;160:526–34 34. Sawin CT, Geller A, Kaplan MM, Bacharach P, PW, Hershman JM. Low serum thyrotropin (thyroid stimulating hormone) in older persons without hyperthyroidism. Arch Intern Med. 1991;151:165–8 35. Hershman JM, Pekary AE, Berg L, DH, Sawin CT Serum thyrotropin and thyroid hormone levels in elderly and middle-aged euthyroid persons. J Am Geriatr Soc. 1993;41:823–8 36. Parle JV, Maisonneuve P, Sheppare MC, Boyle P, lyn JA. Prediction of all-cause and cardiovascular mortality in elderly people from one low serum thyrotropin result: a 10-year cohort study. Lancet. 2001;358:861–5 The TSH reference range for an INDIVIDUAL is narrower than the reference range for a population. The value of a population-based reference range is limited when the individual patient-based reference range (i.e. his personal reference range) is narrow 37. Fraser CG, EK. Generation and application of data on biological variation in clinical chemistry. Crit Rev Clin Lab Sci. 1989;27:409–37 38. EK. Effects of intra- and interindividual variation on the appropriate use of normal ranges. Clin Chem. 1974;20:1535–42 The individual TSH reference ranges are remarkably narrow within a relatively small segment of the population reference range, i.e. confined to only 25% of a range of 0.3–5.0 mU/liter. A shift in the TSH value of the individual outside of his or her individual reference range, but still within the population reference range, would not be normal for that individual. For example, an individual (as in ’s series) with a personal range of 0.5–1.0 mU/liter would be at subphysiological thyroid hormone levels at the population mean TSH of 1.5 mU/liter (as explained by Wartofsky 2005) 39. Andersen S, sen KM, Brunn NH, Laurberg P. Narrow individual variations in serum T4 and T3 in normal subjects: a clue to the understanding of subclinical thyroid disease. J Clin Endocrinol Metab. 2002;87:1068–72 Studies of twins have data to support that each of us has a genetically determined optimal free T4 (FT4)-TSH set point or relationship 40. Demers LM, Spencer CA. Laboratory medicine practice guidelines: laboratory support for the diagnosis and monitoring of thyroid disease. Clin Endocrinol (Oxf). 2003;58:138–40 41. Meikle AW, Stringham JD, Woodward MG, JC. Hereditary and environmental influences on the variation of thyroid hormones in normal male twins. J Clin Endocrinol Metab. 1988 ; 66:588–92 A measured TSH difference of 0.75 mU/liter can already be significant in a patient. The NACB guideline 8 states that " the magnitude of difference in ...TSH values that would be clinically significant when monitoring a patient’s response to therapy... is 0.75 mU/liter.” Greater TSH fluctuations in a specific patient may mean that s/he becomes hypothyroid or hyperthyroid. 42. Baloch Z, Carayon P, Conte-Devolx B, Demers LM, Feldt-Rasmussen U, Henry JF, LiVosli VA, Niccoli-Sire P, R, Ruj J, Smyth PP, Spencer CA, Stockigt JR, Guidelines Committee, National 21 Academy of Clinical Biochemistry 2003 Laboratory medicine practice guidelines. Thyroid. 2003 Jan;13(1):3-126 A serum TSH that rises in a given individual from a set point of 1.0 to 3.5 is likely to be abnormally elevated and imply early thyroid failure. A minor change in serum free T4 results in an amplified change in TSH to outside of the usual population-based reference range, although the free T4 is still within its own population-based reference range, because of the the log-linear relationship between TSH and free T4. In the case of subclinical hypothyroidism, for example, a slight drop in free T4 results in an amplified and inverse response in TSH secretion (as explained by Wartofsky 2005) 43. DS. Subclinical hypothyroidism. N Engl J Med. 2001;345:260–5 44. Ayala A, Wartofsky L. Minimally symptomatic (subclinical) hypothyroidism. Endocrinologist. 1997;7:44–50 There is a 3-fold difference between the average daily maximal TSH (3) and minimal TSH (1 mIU/ml) 89. Brabant G, Prank K, Ranft U, Schuermeyer T, Wagner TO, Hauser H, Kummer B, 45. Feistner H, Hesch RD, von zur Muhlen A. Physiological regulation of circadian and pulsatile thyrotropin secretion in normal man and woman. J Clin Endocrinol Metab. 1990 Feb;70(2):403-9 Conclusion: TSH reference range is too large => need for narrower ranges 46. Pain RW. Simple modifications of three routine in vitro tests of thyroid function. Clin Chem. 1976; 22(10): 1715-8. 47. Dickey RA, Wartofsky L, Feld S. Optimal thyrotropin level: normal ranges and reference intervals are not equivalent. Thyroid. 2005 Sep;15(9):1035-9 48. Wartofsky L, Dickey RA. The evidence for a narrower thyrotropin reference range is compelling. J Clin Endocrinol Metab. 2005 Sep;90(9):5483-8 Other arguments that may explain why the TSH test alone is not the only test. The TSH test is insufficient to diagnose all forms of hypothyroidism, including the borderline forms. The frequency of abnormal TSH values 49. Canaris GJ, Manowitz NR, Mayor G, Ridgway EC. The Colorado thyroid disease prevalence study. Arch Intern Med. 2000;160:526–34 50. Warren RE, Perros P, Nyirenda MJ, Frier BM. Serum thyrotropin is a better predictor of future thyroid dysfunction than thyroid autoantibody status in biochemically euthyroid patients with diabetes: implications for screening. Thyroid. 2004;14:853–7 Longitudinal studies indicating a rate of progression of mild thyroid failure into overt hypothyroidism of about 5% per year (50% or more in 10 years!): they have to be treated 51. Vanderpump MPJ, Tunbridge WMG, French JM, Appleton D, Bates D, F, Grimley J, Hasan DM, Rodgers H, Tunbridge F. The incidence of thyroid disorders in the community: a twentyyear follow-up of the Whickham Survey. Clin Endocrinol (Oxf). 1995; 43:55–68 52. Parle JV, lyn JA, Cross KW, SC, Sheppard MC. Prevalence and follow-up of abnormal thyrotrophin (TSH) concentrations in the elderly in the United Kingdom. Clin Endocrinol (Oxf). 1991;34:77–83 53. Huber G, Staub J-J, Meier C, Mitrache C, Guglielmetti M, Huber P, Braverman LE. Prospective study of the spontaneous course of subclinical hypothyroidism: prognostic value of thyrotropin, thyroid reserve, and thyroid antibodies. J Clin Endocrinol Metab. 2002;87:3221–6 54. Kabadi UM. ‘Subclinical hypothyroidism:’ natural course of the syndrome during a prolonged followup study. Arch Intern Med. 1993;153:957-61 22 The pituitary 5’-deiodinase type 2 that converts thyroxine into triiodothyronine (T3), is different than the liver and kidney 5’-deiodinase type 1 that provides the T3 for the rest of the body. This difference may explain why TSH secretion and thus serum TSH secreted by the pituitary gland may be normal, while the rest of the body may be in a thyroid deficient state. 55. Koenig RJ, Leonard JL, Senator D, Rappaport N, A, Larsen PR. Regulation of thyroxine 5'- deiodinase activity by 3,5,3'-triiodothyronine in cultured anterior pituitary cells. Endocrinology. 1984 Jul;115(1):324-9. In fasting, hypothyroidism or selenium deficiency for example, the 5‘-deiodinase of the pituitary gland increases or remains unchanged, while that of the liver decreases. 56. Suda AK, Pittman CS, Shimizu T, Cambers JB. The production and metabolism of 3,5,3'- triiodothyronine and 3,3',5'-triiodothyronine in normal and fasting subjects. J Clin Endocrinol Metab. 1978 Dec;47(6):1311-9 57. Larsen PR, Silva JE, Kaplan MM. Relationships between circulating and intracellular thyroid hormones: Physiological and clinical implications. Endocr Rev. 1981 Winter;2(1):87-102. 58. Chanoine JP, Safran M, Farwell AP, Tranter P, Ekenbarger DM, Dubord S, Arthur JR, Beckett GJ, Braverman LE Dubord S, S, Arthur JR, Beckett GJ, Braverman LE, Leonard JLl. Selenium deficiency and type II 5'-deiodinase regulation in the euthyroid and hypothyroid rat: evidence of a direct effect of thyroxine. Endocrinology. 1992 Jul;131(1):479-84 A normal or low serum TSH may reflect in elderly persons hypothyroidism in peripheral tissues, and not anymore eu- or hyperthyroidism, because the pituitary gland has aged. Progressively with increasing age, the serum TSH test becomes less reliable as a diagnostic test. 59. Urban RJ. Neuroendocrinology of aging in the male and female. Endocrinol Metab Clin North Am. 1992;21(4): 921-31. Necessity for other tests other than the TSH to diagnosis thyroid dysfunction, e.g. the serum free T4 60. Ladenson PW. Diagnosis of hypothyroidism. In Werner and Ingbar's The Thyroid, 7th edition, Braverman LE and Utiger RE, Lippincott-Raven Publishers, Philadelphia. 1996; 878-82 61. Pacchiarotti A, o E, Bartalena L, Aghini Lombardi F, Grasso L, Buratti L, Falcone M, Pinchera A. Serum free thyroid hormones in subclinical hypothyroidism. J Endocrinol Invest. 1986 Aug;9(4):315-9 62. Surks MI, Chopra IJ, sh CN, Nicoloff JT, Salomon DH. American Thyroid Association guidelines for use of laboratory tests in thyroid disorders. JAMA. 1990 Mar 16;263(11):1529-32 63. JR, Black EG, Sheppard MC. Evaluation of a sensitive chemiluminescent assay for TSH in the follow-up of treated thyrotoxicosis. Clin Endocrinol Oxf. 1987; 27(5): 563-70 Serum thyroid hormone levels may not reflect the cellular thyroid status 64. Escobar del Rey F, Ruiz de Ona C, Bernal J, Obregon MJ, Morreale de Escobar G. Generalized deficiency of 3, 5, 3'-triiodothyronine in tissues from rats on a low iodine intake, despite normal circulating T3 levels. Acta Endocrinol (Copenh) 1989; 120: 490-8 Need to analyse valuable indicators of peripheral activity such as the serum levels of plasma binding proteins SHBG, TBG, CBG, or of thyroid-dependent enzymes such as alkaline phosphatase, osteocalcin 65. Smallridge RC. Metabolic, physiologic, and clinical indexes of thyroid function. In Werner and Ingbar's The Thyroid, 7th edition, Braverman LE and Utiger RP, Lippincott-Raven Publishers, Philadelphia, 1996 66. Foldes J, Tarjan G, Banos C, Nemeth J, Varga F, Buki B. Biologic markers in blood reflecting thyroid hormone effect at peripheral tissue level in patients receiving levothyroxine replacement for hypothyroidism. Exp Clin Endocrinol. 1992; 99(3): 129-33 23 Conditions or factors that DEPRESS the serum TSH Aging 67. Urban RJ. Neuroendocrinology of aging in the male and female. Endocrinol Metab Clin North Am. 1992;21(4): 921-31 68. Sawin CT, Geller A, Kaplan MM, Bacharach P, PW, Hershman JM. Low serum thyrotropin (thyroid-stimulating hormone) in older persons without hyperthyroidism. Arch Intern Med. 1991; 151(1): 165-8 Fasting 69. Croxson MS, Hall TD, Kletzky OA, Jaramillo JE, Nicoloff OA. Decreased serum thyrotropin induced by fasting. J Clin Endocrinol Metab. 1977; 45: 560 70. Borst GC, Osburne RC, O' JT, s LP, Burman KD. Fasting decreases thyrotropin responsiveness to thyrotropin-releasing hormone: A potential cause of misinterpretation of thyroid function tests in the critically ill. J Clin Endocrinol Metab. 1983 Aug;57(2):380-3 71. GA, Kurcz M, Marshall S, Meites J. Effects of starvation in rats on serum levels of follicle stimulating hormone, luteinizing hormone, thyrotropin, growth hormone and prolactin; response to LH-releasing hormone and thyrotropin-releasing hormone. Endocrinology. 1977; 100(2): 580-7 72. Opstad PK. The thyroid function in young men during prolonged physical stress and the effect of energy and sleep deprivation. Clin Endocrinol. 1984; 20: 657-69. Strenuous physical exercise 73. Scanlon MF, Toft AD. Regulation of thyrotropin secretion. In Werner and Ingbar's The Thyroid, 7th Edition Pregnancy (first trimester) 74. Braverman LE and Utiger RE, Lippincott-Raven Publisers, Philadelphia. 1996; 220-40. Depression and anxiety disorders 75. Bartalena L, Placidi GF, o E, Falcone M, Pellegrini L, Dell'Osso L, Pacchiarotti A, Pinchera A. Nocturnal serum thyrotropin (TSH) surge and the TSH response to TSH-releasing hormone: dissociated behavior in untreated depressives. Clin Endocrinol Metab. 1990 Sep;71(3):650-5. 76. Rupprecht R, Rupprecht C, Rupprecht M, Noder M, Mahlstedt J. Triiodothyronine, thyroxine, and TSH response to dexamethasone in depressed patients and normal controls. Biol Psychiatry. 1989;25(1): 22-32. 77. Maeda K, Yoshimoto Y, Yamadori A. Blunted TSH and unaltered PRL responses to TRH following repeated administration of TRH in neurological patients: A replication of neuroendocrine features of major depression. Biol Psychiatry. 1993; 33(4): 277-83. 78. Duval F, Macher JP, Mokrani MC. Difference between evening and morning thyrotropin responses to protirelin in major depressive episode. Arch Gen Psychiatry. 1990; 47(5): 443-8. 79. Loosen PT, Prange AJ Jr. erum thyrotropin response to thyrotropin-releasing hormone in psychiatric patients: A review. Am J Psychiatry 1982; 139(4): 405-16. Non-thyroidal diseases: diabetes mellitus, Cushing’s syndrome, renal failure, cancer, myocardial infarction, AIDS, post-traumatic syndromes, chronic alcoholic liver disease, other illnesses 80. Devos P. Rationele keuze van schildklierfunctie tests. Tijdschr Geneesk. 1990; 46(8): 591-9 81. CM, Kaptein EM, Lum SMC, Spencer CA, Kumar K, Nicoloff JT. Pattern of recovery of thyroid hormone indices associated with treatment of diabetes mellitus. J Clin Endocrinol Metab. 1982; 54: 362-366 82. Andrade SF, Kanitz-Ml, Povoa H Jr. Study of thyrotropic reserve in diabetics of adult type. Acta-Biol Mod Ger 1977; 36(10): 1479-81 24 83. C, Montoya-E, Jolin T. Effect of streptozotocin diabetes on the hypothalamic pituitary thyroid axis in the rat. Endocrinology 1980; 107(6): 2099-103 84. Rossi GL, Bestetti GE, Tontis DK, Varini M. Reverse hemolytic plaque assay study of luteinizing and follicle-stimulating hormone and thyrotropin secretion in diabetic rat pituitary glands. Diabetes 1989; 38(10): 1301-6 85. Adriaanse R, Brabant G, Endert E, Wiersinga W. Pulsatile thyrotropin secretion in patients with Cushing's syndrome. Metabolism. 1994 Jun;43(6):782-6 86. Beyer HK-, Schuster P, Pressler H. Studies on hypothalamic pituitary thyroid regulation in hemodialysis patients. Nuklearmedizin 1981;20(1):19-24 87. Kokei S, Inoue T, lino S. Serum free thyroid hormones and response of TSH to TRH in nonthyroidal illnesses. Nippon Naibunpi Gakkai Zasshi. 1986; 62(11): 1231-43 88. De Marinis L, Mancini A, Masala R, Torlontano M, Sandric S, Barbarino A. Evaluation of pituitarythyroid axis response to acute myocardial infarct. J Endocrinol Invest. 1985; 8(6): 519-22 89. Rondanelli M, Solerte SG, Fioravanti M, Scevola K, et al. Circadian secretory pattern of growth hormone, insulin-like growth factor type I, cortisol, adrenocorticotropic hormone, thyroid-stimulating hormone, and prolactin during HIV infection. AIDS Res Hum Retroviruses. 1997; 13(14): 1243-9. 90. Wintemitz WW, Dzur JA. Pituitary failure secondary to head trauma. Case report. J Neurosurg. 1976; 44(4): 504-5 91. Dzur JA, Wintemitz WW. Posttraumatic hypopituitarism: Anterior pituitary insufficiency secondary to head trauma. South Med J. 1976; 69(10): 1377-9 92. Modigliani E, Periac P, Perret G, Hugues JN, Coste T. TRH response in 53 patients with chronic alcoholism. Ann Med Interne Paris. 1979; 130(5):297-302 93. Ekman AC, Vakkuri 0, Ekman M, Leppalusto J, Ruckonen A, Knip M. Ethanol decreases nocturnal plasma levels of thyrotropin and growth hormone but not those of thyroid hormones or protection in man. J Clin Endocrinol Metab. 1996; 81(7):2627-32 94. Bacci V, Schussler GC, Kaplan TB. The relationschip between serum triidothyronine and thyrotropin during systemic illness. J Clin Endocrinol Metab. 1982; 54:1229-35 95. Hamblin PS, Dyer SA, Mohr VS, Le Grand BA, Lim CF, Tuxen DV, Topliss DJ, Stockigt JR. Relationship between thyrotropin and thyroxine changes during recovery from severe hypothyroxinemia of critical illness. J Clin Endocrinol Metab. 1986 Apr;62(4):717-22 96. Bermudez F, Sucks MI, Opperheimer JH. High incidence of decreased serum triiodothyronine concentration in patients with nonthyroidal disease. J Clin Endocrinol Metab. 1975; 41: 27-40. Medications: thyroid therapy, estroprogestative birth control pills, progestogens, anti-infammatory agents (incl. glucocorticoids and aspirin), antidepressants, L-Dopa, bromocriptine, neuroleptica, antihypertensives, antiarrhythmics (amiodarone), hypolipemic agents, IGF-1, somatostatin, etc. 97. lyn JA, Black EG, Betteridge J, Sheppard MC. Comparison of second and third generation methods for measurement of serum thyrotropin in patients with overt hyperthyroidism, patients receiving thyroxine therapy, and those with nonthyroidal illness. J Clin Endocrinol Metab. 1994;78(6):1368-71 98. Gow SM, Caldwell G, Toft AD, Seth J, Hussey AJ, Sweeting VM, Beckett GJ. Relationship between pituitary and other target organ responsiveness in hypothyroid patients receiving thyroxine replacement. J Clin Endocrinol Metab. 1987;64(2):364-70 99. Custro N, Scafidi V Costanzo G, Corsello FP. Variations in the serum levels of thyroid hormones and TSH after intake of a dose of L-thyroxine in euthyroid subjects and in adequately treated hypothyroid patients. Bull Soc Ital Biol Sper. l989; 65(11):1045-52 100. England ML, Hershman JM. Serum TSH concentration as an aid to monitoring compliance with thyroid hormone therapy in hypothyroidism. Am J Med Sci. 1986 Nov;292(5):264-6 101. Chopra U, Carlson HE, DH. Comparison of inhibitory effects of 3,5,3'-triiodothyronine (T3), thyroxine (T4), 3,3,',5'-triiodothyronine (rT3,), and 3,3'-diiodothyronine (T2) on thyrotropin-releasing hormone-induced release of thyrotropin in the rat in vitro. Endocrinology. 1978; 103(2): 393-402 25 102. Fraser WD, Biggart EM, O'Reilly DS, Gray HW, McKillop JH, Thomson JA. Are biochemical tests of thyroid function of any value in monitoring patients receiving thyroxine replacement? Br Med J (Clin Res Ed). 1986 Sep 27;293(6550): 293-808 103. DS, H, Rodbard D, Maloof F. Peripheral responses to thyroid hormone before and after L-thyroxine therapy in patients with subclinical hypothyroidism. J Clin Endocrinol Metab. 1981 Dec;53(6):1238-42 104. Saberi M, Utiger RD. Serum thyroid hormone and thyrotropin concentrations during thyroxine and triiodothyronine therapy. J Clin Endocrinol Metabol. 1974;39:923-7 105. Rey Stocker I, Zufferey MM, Lemarchand MT, Rais M. The sensibility of the hypophysis, the gonads and the thyroid before and after the administration of oral contraceptives. A resume. Pediatr Ann. 1981;10(12):15-20. 106. Lemarchand-Beraud T. Influence of estrogens on pituitary responsiveness to LHRH and TRH in human. Reymond M, Berthier C. Ann Endocrinol Paris. 1977; 38(6): 379-82. 107. El-Etreby MF, Graf KJ, Gunzel P, Neumann F. Evaluation of effects of sexual steroids on the hypothalamic-pituitary system of animals and man. Arch Toxicol Suppl. 1979;2:11-39 108. Prank K, Ranft U, Bergmann P, Schuermeyer T, Hesch RD, von Zur Muhlen A. Circadian and pulsatile TSH secretion under physiological and pathological conditions. Horm Metab Res Suppl. 1990; 23:12-7 78. 59.Re RN, Kourides IA, Ridgeway EC, Weintraub BD, Maloof F. The effect of glucocorticoid administation on human pituitary secretion of thyrotropin and prolactin. J Clin Endocrinol Metab. 1976; 43:338-46. 109. Atterwill CK, Catto LC, Heal DJ, Holland CW, Dickens TA, CA. The effects of desipramine (DMI) and electroconvulsive shock (ECS) on the function of the hypothalamo-pituitary-thyroid axis in the rat. Psychoneuroendocrinology. 1989;14(5):339-46 110. Kaptein EM, Kletzsky OA, Spencer CA, NicoloffJT. Effects of prolonged dopamine infusion on anterior pituitary function in normal males. J Clin Endocrinol Metab 1980; 51:488-91 111. s MH, Kramer P, D, Sexton F. Effect ofnaloxone infusions on pulsatile thyrotropin secretion. J Clin Endocrinol Metab. 1994;78(5):129-32. 112. Burger A, Nicod DP, Lemarchaud-Beraud T, Vallotton MB. Effect of amiodarone on serum triiodothyronine, reverse triiodothyronine, thyroxine and thyrotropin. J Clin Invest 1976; 58: 255-9 113. PJ, FB, Utiger RD, Kulaga SF Jr. Changes in serum thyrotropin (TSH) in man during halofenate administration. J Clin Endocrinol Metab 1976; 43(4): 873-81 114. Trainer PI, Holly 1, Medbak S, Rais LH, Besser GM. The effect of recombinant IGF-1 on anterior pituitary function in healthy volunteers. Clin Endocrinol (Chef) 1994; 41(6): 801-7. Toxic foods: MSG, alcohol 115. Bakke JL, Lawrence N, J, S, Bowers CY. Late endocrine effects of administering monosodium glutamate to neonatal rats. Neuroendocrinology 1978; 26(4): 220-8. 116. Greeley GH Jr, Nicholson GF, Kizer JS. A delayed LH/FSH rise after gonadectomy and a delayed serum TSH rise after thyroidectomy in monosodium-L-glutamate (MSG)-treated rats. Brain Res 1980; 195(1):111-22 117. Modigliani E, Periac P, Perret G, Hugues JN, Coste T. TRH response in 53 patients with chronic alcoholism. Ann Med Interne Paris. 1979; 130(5): 297-302 Thyroid diseases: hyperthyroidism, Graves-Basedow disease, nodular goiter, thyroiditis, secondary or tertiary hypothyroidism, congenital hypothyroidism 118. Spencer CA, Lai-Rosenfeld AO, Guttler RB, LoPresti J, Marcus AO, Nimalasuriya A, Eigen A, Doss RC, Green BJ, Nicoloff JT. Thyrotropin secretion in thyrotoxic and thyroxine-treated patients: assessment by a sensitive immunoenzymometric assay. J Clin Endocrinol Metab. 1986 Aug;63(2):349-55 119. Yeo PP, Loh KC. Subclinical thyrotoxicosis. Adv Intern Med. 1998; 43: 501-32 26 120. Chanson P. Insuffisance thyrotropic. Rev Prat. 1998 15; 48(18): 2023-6 121. sen PH, RosleffF, Rasmussen J, Hobolth N. Studies on the required analytical quality of TSH measurements in screening for congenital hypothyroidism. Scand J Clin Lab Invest Suppl. 1980;155: 5-93. 122. Fofanova 0V, Takamura N, Kinoshita E, Yoshimoto M, Tsuji Y, kova VA, Evgrafov 0V, Dedov II, Goncharov NP, Yamashita S. Rarity of PIT1 involvement in children from Russia with combined pituitary hormone deficiency. Am J Med Genet 1998; 77(5): 360-5. FACTORS that ELEVATE the serum TSH Neonatus, stress - emotional arousal, cold exposure, sleep deprivation, adrenal insufficiency, recovery from severe illness, congenital malformations 123. Hashimoto H, Sato F, Kubo M, Ohki T. Maturation of the pituitary-thyroid axis during the perinatal period. Endocrinol Jpn 1991;38(2):151-7 124. Gendrel D, Feinstein MC, Grenier J, M, Ingrand J, Chaussain JL, Canlorbe P, Job JC. Falsely elevated serum thyrotropin (TSH) in newborn infants: Transfer from mothers to infants of a factor interfering in the TSH radioimmunoassay. J Clin Endocrinol Metab 1981;52(1):62-5. 125. Armario A, Calderon A, Jolin T, Castellanos JM. Sensitivity of anterior pituitary hormones to graded levels of psychological stress. Life Sci 1986; 39(5): 471-5 126. HL, Silverman ED, Shakir KM, Dons R, Burman KD, O' JT. Changes in serum triiodothyronine (TQ kinetics after prolonged Antarctic residence: The polar T3 syndrome. J Clin Endocrinol Metab. 1990; 70(4): 965-74 127. Sadamatsu M, Kato N, Iida H, Takahashi S, Sakaue K, Takahashi K, Hashida S, Ishikawa E. The 24-hour rhythms in plasma growth hormone, prolactin and thyroid stimulating hormone: effect of sleep deprivation. J Neuroendocrinol. 1995 Aug;7(8):597-606 128. Sjoberg S, Wemer S. Increased level of TSH can be a sign of adrenal cortex failures: Net necessarily of thyroid gland disease. Lakartidningen 1999; 96(5):464-5 129. De Nayer P, Dozin B, Vandeput Y, Bottazzo FC, Crabbe J. Altered interaction between triiodothyronine and its nuclear receptors in absence of cortisol: A proposed mechanism for increased thyrotropin secretion in corticoid deficiency states. Eur J Clin Invest. 1987 Apr;17(2):106-8 130. Oakley GA, Muir T, Ray M, Girdwood RW, Kennedy R, son MD. Increased incidence of congenital malformations in children with transient thyroid-stimulating hormonal elevation on neonatal screening. J Pediatr. 1998; 132(4): 573-4 Medications: iodine, antithyroidea, , lithium, neuroleptica (haloperidol, chlorpromazine), cimetidine, sulfapyridine, clomifen, antidepressants (sertraline), antihistaminic agents, cholestograhic agents, etc. 131. Devos P. Rationele keuze van schildklierfunctie tests. Tijdschr Geneesk. 1990;46(8):591-9 132. Kleinmann RE, Vagenakis AG, Braverman LE. The effect of iopanoic acid on the regulation of thyrotropin secretion in euthyroid subjects. J Clin Endocrinol Metab. 1980;51(2): 399-403 133. Mc Caven KC, Garber JR, Spark R. Elevated serum thyrotropin in thyroxine-treated patients with hypothyroidism given sertraline. N Engl J Med. 1997; 337(14):1010-1 134. Brown CG, Harland RE, Major IR, Atterwill CK. Effects of toxic doses of a novel histamine (H2) antagonist on the rat thyroid gland. Food Chem Toxicol. 1987; 25(10):787-94 Auto-immune thyroiditis and hypothyroidism: primary, iodine-deficient, thyroid hormone resistance 135. Devos P. Rationele keuze van schildklierfunctie tests. Tijdschr Geneesk. 1990;46(8): 591-9 136. Missler U, Gutekunst R, Wood WG. Thyroglobulin is a more sensitive indicator of iodine deficiency than thyrotropin: Development and evaluation of dry blood spot assays for thyrotropin and thyroglobulin in iodine- deficient geographical areas. Eur J Clin Chem Clin Biochem 1994; 32(3): 137-4133 137. Volpe R. Subacute (de Quervain's) thyroiditis. J Clin Endocrinol Metab. 1979 Mar;8(1):81-95 138. Massoudi MS, Meilahn EN, Orchard TJ, Foley TP Jr, Kuller LH, Costantino JP, Buhari AM. Thyroid function and perimenopausal lipid and weight changes: the Thyroid Study in Healthy Women (TSHW). J Womens Health. 1997 Oct;6(5):553-8 139. Smallridge RC, RA, Wiggs EA, Rajagopal KR, Fein HG. Thyroid hormone resistance in a large kindred: physiologic, biochemical, pharmacologic, and neuropsychologic studies. Am J Med. 1989 Mar;86(3):289-96 TSH-secreting tumors (rare) 140. Smallridge RC. Thyrotropin-secreting pituitary tumors, Endocrinol Metab Clin North Am 1987 Sep;16(3):765-92 FACTORS that ELEVATE or DEPRESS serum TSH Physiological serum TSH fluctuations 141. Brabant G, Prank K, Ranft U, Schuermeyer T, Wagner TO, Hauser H, Kummer B, Feistner H, Hesch RD, von zur Muhlen A. Physiological regulation of circadian and pulsatile thyrotropin secretion in normal man and woman. J Clin Endocrinol Metab. 1990 Feb;70(2):403-9 142. Brabant G, Prank K, Ranft U, Bergmann P, Schuermeyer T, Hesch RD, von zur Muhlen A. Circadian and pulsatile TSH secretion under physiological and pathophysiological conditions. Horm Metab Res Suppl. 1990;23:12-7 143. Goichot B, Brandenberger G, Schlienger JL. Secretion of thyrotropin during states of wakefulness and sleep. Physiological data and clinical applications. Presse Med. 1996;25(21):980-4 144. Rao ML, Gross G, Strebel B, Halaris A, Huber G, Braunig P, Marler M. Circadian rhythm of tryptophan, serotonin, melatonin, and pituitary hormones in schizophrenia. Biol Psychiatry. 1994;1:35(3): 151-63 145. Rose SR, Nisula BC. Circadian variation of thyrotropin in childhood. J Clin Endocrinol Metab. 1989; 68(6):1086-90 146. Scanlon MF, Weetman AP, M, Pourmand M, Arnao MD, Weightman DR, Hall R. Dopaminergic modulation of circadian thyrotropin rhythms and thyroid hormone levels in euthyroid subjects. J Clin Endocrinol Metab. 1980 Dec;51(6):1251-6 147. Rom Bugoslavskaia ES, Shcherbakova VS. Seasonal characteristics of the effect of melatonin on thyroid function. Bull Eksp Biol Med. 1986;101(3):268-9 Variations in the biological activity of TSH 148. Beck-Peccoz P, Persani L. Variable biological activity of thyroid stimulating hormone. Eur J Endocrinol. 1994 Oct;131(4):331-40 149. Maes M, Mommen K, Hendrickx D, Peeters D, D'Hondt P, Ranjan R, De Meyer F, Scharpe S. Components of biological variation of TSH, TT3, FT4, PRL, cortisol and testosterone in healthy volunteers. Clin Endocrinol (Oxf). 1997 May;46(5):587-98 150. Hiromoto M, Nishikawa M, Ishihara T, Yoshikawa N, Yoshimura M, Inada M. Bioactivity of thyrotropin (TSH) in patients with central hypothyroidism: Comparison between the in vivo 3,5,3'- triiodo-thyronine response to TSH and in vitro bioactivity of TSH. J Clin Endocrinol Metab. 1995 Apr;80(4):1124-8 28 TSH test kit imperfections 151. Rasmussen AK, Hilsted L, Perrild H, Christiansen E, Siersbaek-Nielsen K, Feldt-Rasmussen U. Discrepancies between thyrotropin (TSH) meaasurement by four sensitive immunometric assays. Clin Chim Acta. 1997 Mar 18;259(1-2):117-28 152. Libeer JC, Simonet L, Gillet R. Analytical evaluation of twenty assays for determination of thyrotropin (TSH). Ann Biol Clin Paris. 1989; 47(1): 1-11 153. Spencer CA, Takeuchi M, Kazarosyan M, MacKenzie F, Beckett GJ, Wilkinson E. Interlaboratory/intermethod differences in functional sensitivity of immunometric assays of thyrotropin (TSH) and impact on reliability of measurement of subnormal concentrations of TSH. Clin Chem. 1995 Mar;41(3):367-74 154. Faber J, Gam A, Siersbaek Nielsen K. Improved sensitivity of serum thyrotropin measurements: Studies on serum sex hormone-binding globulin in patients with reduced serum thyrotropin. Acta Endocrinol Copenh 1990; 123(5): 535-40 155. Laurberg P. Persistent problems with the specificity of immunometric TSH assays. Thyroid. 1993 Winter;3(4):279-83 156. Schlienger JL, Sapin R, Grunenberger F, Gasser F, Pradignac A. Thyrotropin assay by chemiluminescence in the diagnosis of dysthyroidism with low thyrotropin and normal thyroid hormones levels. Pathol Biol Paris. 1993; 41(5): 463-8 157. Spencer C, Eigen A, Shen D, Duda M, Qualls S, Weiss S, Nicoloff J. Specificity of sensitive assays of thyrotropin (TSH) used to screen for thyroid disease in hospitalized patients. Clin Chem. 1987 Aug;33(8):1391-6 158. Spencer CA, Challand GS. Interference in a radioimmunoassay for human thyrotropin. Clin Chem 1977;23(3): 584-8 159. Kahn BB, Weintraub BD, Csako G, Zweig MH. Factitious elevation of thyrotropin in a new ultrasensitive assay: Implications for the use of monoclonal antibodies in 'sandwich' immuno-assay. J Clin Endocrinol Metab. 1988 Mar;66(3):526-33 160. Kourides IA, Weintraub BD, Martorana MAL, Maloof F. Alpha subunit contamination of human albumin preparations: Interference in radioimmunoassay. J Clin Endocrinol Metab. 1976; 43(4): 919-23 161. Bartlett WA, Browning MC, Jung RT. Artefactual increase in serum thyrotropin concentration caused by heterophilic antibodies with specificity for IgG of the family Bouidea. Clin Chem. 1986; 32(12): 22(4-9) 162. Csako G, Weintraub BD, Zweig MH. The potency of immunoglobulin antibodies in a monoclonal immunoradiometric assay for thyrotropin. Clin Chem. 1988 Jul;34(7):1481-3 163. Seghers J, Schruers F, De Nayer P, Beckers C. Interference in thyrotropin (TSH) determination: Falsely elevated TSH values in a transplanted patient. Eur J Nucl Med. 1989; 15(4): 194-6 164. Spencer C, Eigen A, Shen D, Duda M, Quails S, Weiss S, Nicoloff J. Specificity of sensitive assays of thyrotropin (TSH) used to screen for thyroid disease in hospitalized patients. Clin Chem. 1987;33(8):1391-6 165. Ealey PA, Marshall NJ, Ekins RP. Time-related thyroid stimulation by thyrotropin and thyroidstimulating antibodies, as measured by the cytochemical section bioassay. J Clin Endocrinol Metab. 1981;52(3): 483-7 Doubts on the adequateness of measuring the serum TSH as a help to monitor a thyroid treatment ( follow-up). The serum TSH test for follow-up: The risk of misinterpretation increases when monitoring the treatment of hyper- or hypothyroidism 166. Talbot JN, Duron F, Feron R. Aubert P, Milhaud G. Thyroglobulin, thyrotropin and thyrotropin binding inhibiting immunoglobulins assayed at the withdrawal of antithyroid drug therapy as predictors of relapse of Graves' disease within one year. J Endocrinol Invest. 1989; 12(9): 589-95 In 36-47 % of cinically euthyroid patients receiving adequate long-term thyroid therapy for hypothyroidism, an undetectable serum TSH is found 167. lyn JA, Black EG, Betteridge J, Sheppard MC. Comparison of second and third generation methods for measurement of serum thyrotropin in patients with overt hyperthyroidism, patients receiving thyroxine therapy, and those with nonthyroidal illness. J Clin Endocrinol Metab 1994; 78(6): 1368-71 168. Gow SM, Caldwell G, Toft AD, Seth J, Hussey AJ, Sweeting VM, Beckett GJ. Relationship between pituitary and other target organ responsiveness in hypothyroid patients receiving thyroxine replacement. J Clin Endocrinol Metab. 1987; 64(2): 364-70 After intake of thyroidhormones, the serum TSH is transitorily depressed within 60 minutes and remains low for up to 9 hours after intake 169. Chopra U, Carlson HE, DH. Comparison of inhibitory effects of 3,5,3'-triiodothyronine (T3), thyroxine (T4), 3,3,',5'-triiodothyronine (rT3,), and 3,3'-diiodothyronine (T2) on thyrotropinreleasing hormone-induced release of thyrotropin in the rat in vitro. Endocrinology. 1978;103(2):393-402 Some patents who exhibit reversion of an initially high TSH level back into the reference range, are found to subsequently develop mild thyroid failure 170. Calaciura F, Motta RM, Miscio G, Fichera G, Leonardi D, Carta A, Trichitta V, Tassi V, Sava L, Vigneri R. Subclinical hypothyroidism in early childhood: a frequent outcome of transient neonatal hyperthyrotropinemia. J Clin Endocrinol Metab. 2002;87:3209–14 Supporters of the recommendations of the consensus panel promote a target TSH range of 1.0– 1.5 mU/liter in patients already receiving T4 therapy, whereas they refuse to accept TSH levels of 3–10 mU/liter as abnormal in patients not receiving T4 therapy. 171. Baloch Z, Carayon P, Conte-Devolx B, Demers LM, Feldt-Rasmussen U, Henry JF, LiVosli VA, Niccoli-Sire P, R, Ruj J, Smyth PP, Spencer CA, Stockigt JR, Guidelines Committee, National Academy of Clinical Biochemistry 2003 Laboratory medicine practice guidelines. Thyroid. 2003 Jan;13(1):3-126 The lower end of the normal or reference range for TSH lies between 0.2 and 0.4 mU/liter, as indicated by a number of clinical studies 172. Baloch Z, Carayon P, Conte-Devolx B, Demers LM, Feldt-Rasmussen U, Henry JF, LiVosli VA, Niccoli-Sire P, R, Ruj J, Smyth PP, Spencer CA, Stockigt JR, Guidelines Committee, National Academy of Clinical Biochemistry 2003 Laboratory medicine practice guidelines. Thyroid. 2003 Jan;13(1):3-126 173. Parle JV, lyn JA, Cross KW, SC, Sheppard MC. Prevalence and follow-up of abnormal thyrotrophin (TSH) concentrations in the elderly in the United Kingdom. Clin Endocrinol (Oxf). 1991;34:77-83 174. Warren RE, Perros P, Nyirenda MJ, Frier BM. Serum thyrotropin is a better predictor of future thyroid dysfunction than thyroid autoantibody status in biochemically euthyroid patients with diabetes: implications for screening. Thyroid. 2004;14:853–7 30 175. Canaris GJ, Manowitz NR, Mayor G, Ridgway EC. The Colorado thyroid disease prevalence study. Arch Intern Med. 2000;160:526–34 176. Sawin CT, Geller A, Kaplan MM, Bacharach P, PW, Hershman JM. Low serum thyrotropin (thyroid stimulating hormone) in older persons without hyperthyroidism. Arch Intern Med. 1991;151:165–8 177. Hershman JM, Pekary AE, Berg L, DH, Sawin CT Serum thyrotropin and thyroid hormone levels in elderly and middle-aged euthyroid persons. J Am Geriatr Soc. 1993;41:823–8 178. Parle JV, Maisonneuve P, Sheppare MC, Boyle P, lyn JA. Prediction of all-cause and cardiovascular mortality in elderly people from one low serum thyrotropin result: a 10-year cohort study. Lancet. 2001;358:861–5 TSH testing only is a hugely controversial area and one that has been around forever. I would point out to the Birmingham University Hospital that the BTA stand alone in their above statement: They take no account of the patients history, symptoms, signs or results of an appropriate examination, which goes against the recommendations laid down by the GMC, the DoH and their own 'sister' organisation the BTF. On the BTA web site, they state: The BTA state: " The Clinical Committee of the Society for Endocrinology and the British Thyroid Association recommend the use of sensitive and specific blood tests as the only method for the precise diagnosis of thyroid dysfunction and for the monitoring of treatment with approved medications... " - also " Currently the BTA does not hold the view that treatment for thyroid disease, either under- or over-active, should be commenced if patients have thyroid function test results within the normal laboratory reference range " . .....the BTF state: " The biochemical results have to be considered alongside clinical symptoms, and together they determine the point at which the physician will introduce Thyroxine therapy " . ....the GMC state: " Good clinical care must include: an adequate assessment of the patient's conditions, based on the history and symptoms and, if necessary, an appropriate examination; " ....the DOH state: " Blood tests are useful in helping diagnose hypothyroidism but should not be used in isolation and other factors must be taken into account such as the absence or presence of symptoms. This is why at present it is considered good medical practice to rely upon clinical history and examination, in addition to blood tests, in the diagnosis of this condition. " 2. Dr F has tried to explain the potential long term consequences of treatment with exogenous thyroid hormones, especially as you have indicated that thyroid function testing whilst on treatment has revealed suppression of TSH, which is a biochemical marker of thyroid hormone excess. Areas of clinical concern associated with long term TSH suppression from exogenous thyroid hormone treatment would be augmentation of risk of atrial fibrillation and osteoporosis. " Any good doctor who knows how the thyroid system function will be aware that TSH is naturally suppressed when the pituitary recognises the body has sufficient thyoxine in the blood so it stops secreting TSH. Why would the pituitary want to do otherwise? TSH is also a biochemical marker of a lack of deficient thyroid hormone in the blood. Also, it has been shown that osteoporisis improves with thyroid treatment [1] 1. Svanberg E, Healey J, Mascarenhas D. Anabolic effects of rhIGF-I/IGFBP-3 in vivo are influenced by thyroid status. Eur J Clin Invest. 2001 Apr;31(4):329-36. THYROID TREATMENT AND THE HEART Claim: Thyroid hormone treatment is dangerous for the heart as it can cause side effects such as atrial fibrillation. Facts: Euthyroidism (normal thyroid function) is essential for the heart; both hypothyroidism as well as hyperthyroidism impair the working of the heart and may facilitate atrial fibrillation. Arguments contra thyroid treatment: because of possible cardiac side effects, especially in cardiac patients Hyperthyroidism: causes tachycardia (critic: tachycardia is the result of hyperthyroidism, hypocorticism, or drinking of caffeinated beverages; avoiding these conditions by adequate treatment or abstention will prevent many cases of tachycardia) 1. Maciel BC, Gallo L Jr, Marin Neto JA, Maciel LM, Alves ML, Paccola GM, Iazigi N. The role of the autonomic nervous system in the resting tachycardia of human hyperthyroidism. Clin Sci (Lond). 1987 Feb;72(2):239-44 2. Abadie E, Leclercq JF, Fisch A, Babalis D, Blanche PM, Passa P, Coumel P. Pathogenesis of tachycardia in hyperthyroidism. Value of Holter monitoring and the use of a beta-blocker. Presse Med. 1985 Feb 2;14(4):197-9 Hyperthyroidism (high serum thyroid hormones) is associated with an increased risk of atrial fibrillation 3. Parmar MS. Thyrotoxic atrial fibrillation. Med Gen Med. 2005 Jan 4;7(1):74 (atrial fibrillation was seen in 15 % of hyperthyroid patients) 4. Dorr M, Volzke H. Cardiovascular morbidity and mortality in thyroid dysfunction. Minerva Endocrinol. 2005 Dec;30(4):199-216 (5.2 times more risk of atrial fibrillation in hyperthyroidism) 5. Frost L, Vestergaard P, Mosekilde L. Hyperthyroidism and risk of atrial fibrillation or flutter: a population-based study. Arch Intern Med. 2004 Aug 9-23;164(15):1675 (atrial fibrillation was observed in 8.3 % of hyperthyroid patients) Hyperthyroidism is associated with an increased risk of angina pectoris 6. Gitlin MJ. L-triiodothyronine-precipitated angina and clinical response. Biol Psychiatry. 1986 May;21(5-6):543-5Possibility to administer a betablocker together with thyroid medication to hypothyroid patients with angina pectoris7. Ellyin F, Fuh CY, Singh SP, Kumar Y. Hypothyroidism with angina pectoris. A clinical dilemma. Postgrad Med. 1986 May 15;79(7):93-8 Patients aged 40 years or older at emergency admission who present a high serum free and total T3, have an increased risk of of angina pectoris and mycocardial infarct at admission and 3 years later (critic: possibly due to hypocorticism that increases (the conversion of T4 into)T3??) 8. s A, Ehlers M, Blank B, Exler D, Falk C, Kohlmann T, Fruehwald-Schultes B, Wellhoener P, Kerner W, Fehm HL. Excess triiodothyronine as a risk factor of coronary events. Arch Intern Med. 2000 Jul 10;160(13):1993-9 A high serum T4 is found in patients with coronary heart disease (critic: possibly accompanied by a low serum T3, which reflects a clinical more hypothyroid state, because of the decrease in conversion of T4 to T3 that is generally observed in the disease state) 9. Sidorenko BA, Begliarov MI, Titov VN, Masenko VP, Parkhimovich RM. Blood thyroid hormones in ischemic heart disease (a comparison with coronary angiographic data, severity of stenocardia and blood lipid level)] Kardiologiia. 1981 Dec;21(12):96-101 10. Selivonenko VG, Zaika IV. The function of the thyroid and thyrotropic function in patients with chronic ischemic heart disease and rhythm disorders. Lik Sprava. 1998 Jan-Feb;(1):81-3 Arguments pro thyroid treatment: the heart needs to have thyroid hormones or heart disease appears; also the case for cardiac patients (but they must be treated with great caution and should receive lower thyroid doses) Associations between thyroid hormone levels and heart healthThyroid hormone levels are positively correlated with the heart rhythm11. Tseng KH, Walfish PG, Persaud JA, Gilbert BW. Concurrent aortic and mitral valve echocardiography permits measurement of systolic time intervals as an index of peripheral tissue thyroid functional status. J Clin Endocrinol Metab. 1989 Sep;69(3):633-8 A lower serum T3 (and higher serum T4) is found in heart patients with arrhythmia 12. Selivonenko VG, Zaika IV. The function of the thyroid and thyrotropic function in patients with chronic ischemic heart disease and rhythm disorders. Lik Sprava. 1998 Jan-Feb;(1):81-3 13. Inama G, Furlanello F, Fiorentini F, Braito G, Vergara G, Casana P. Arrhythmogenic implications of non-iatrogenic thyroid dysfunction. G Ital Cardiol. 1989 Apr;19(4):303-10 (Hypothyroidism in patients with hyperkinetic ventricular arrhythmias (25%), atrial fibrillation (37.5%) and atrio-ventricular block (37.5%))14. Vanin LN, Smetnev AS, Sokolov SF, Kotova GA, Masenko VP. Thyroid function in patients with ventricular arrhythmia. Kardiologiia. 1989 Feb;29(2):64-7 (Hyperthyroidism was diagnosed in 4.8% of 21 patients with persistent ventricular arrhythmias, and latent hypothyroidism was diagnosed in 38.1%)15. Vanin LN, Smetnev AS, Sokolov SF, Kotova GA, Masenko VP. Study of thyroid function in patients with paroxysmal supraventricular tachycardia. Kardiologiia. 1989 Jan;29(1):71-416. Nesher G, Zion MM. Recurrent ventricular tachycardia in hypothyroidism--report of a case and review of the literature. Cardiology. 1988;75(4):301-617. Fredlund BO, Olsson SB. Long QT interval and ventricular tachycardia of " torsade de pointe " type in hypothyroidism. Acta Med Scand. 1983;213(3):231-5 Low serum T3 and T4 levels are found in patients with coronary heart disease 18. Miura S, Iitaka M, Suzuki S, Fukasawa N, Kitahama S, Kawakami Y, Sakatsume Y, Yamanaka K, Kawasaki S, Kinoshita S, Katayama S, Shibosawa T, Ishii J. Decrease in serum levels of thyroid hormone in patients with coronary heart disease. Endocr J. 1996 Dec;43(6):657-63 A low serum free T3 in patients with coronary bypass increases the risk of postoperative atrial fibrillation (higher risk than that of not taking a beta-blocker) 19. Cerillo AG, Bevilacqua S, Storti S, ni M, Kallushi E, Ripoli A, Clerico A, Glauber M. Free triiodothyronine: a novel predictor of postoperative atrial fibrillation. Eur J Cardiothorac Surg. 2003 Oct;24(4):487-92 Progressively lower serum T3 levels are found in patients with ischemic heart disease form coronary stenosis to mycocardial infarct20. Telkova IL, Tepliakov AT. Changes of thyroid hormone levels in the progression of coronary artery disease. Arteriosclerosis. Klin Med (Mosk). 2004;82(4):29-3421. Pavlou HN, Kliridis PA, Panagiotopoulos AA, Goritsas CP, Vassilakos PJ. Euthyroid sick syndrome in acute ischemic syndromes. Angiology. 2002 Nov-Dec;53(6):699-707 22. Pimenov LT, Leshchinskii LA. Thyroid hormone changes (iodothyroninemia) in patients with acute myocardial infarction, and their clinical significance. Kardiologiia. 1984 Oct;24(10):74-7Low serum free and total T3 (and low free T4 and high TSH) levels are found in patients suffering from acute mycocardial infarct with poor outcome23. Satar S, Seydaoglu G, Avci A, Sebe A, Karcioglu O, Topal M. Prognostic value of thyroid hormone levels in acute myocardial infarction: just an epiphenomenon? Am Heart Hosp J. 2005 Fall;3(4):227-33 Auto-immune thyroidiits is associated with poorer heart indices 24. Zoncu S, Pigliaru F, Putzu C, Pisano L, Vargiu S, Deidda M, tti S, Mercuro G. Cardiac function in borderline hypothyroidism: a study by pulsed wave tissue Doppler imaging. Eur J Endocrinol. 2005 Apr;152(4):527-33 (namely “impairment of systolic ejection, a delay in diastolic relaxation and a decrease in the compliance to the ventricular filling. Several significant correlations were found between the parameters and serum-free T(3) and T(4) and TSH concentrations. Data strongly support the concept of a continuum spectrum of a slight thyroid failure in autoimmune thyroiditis”) Increased incidence of auto-immune thyroiditis and overt hypothyroidism in men with acute mycocardial infarct, which may have contributed to the development of the disease. 25. Cerillo AG, Bevilacqua S, Storti S, ni M, Kallushi E, Ripoli A, Clerico A, Glauber M. Free triiodothyronine: a novel predictor of postoperative atrial fibrillation. Eur J Cardiothorac Surg. 2003 Oct;24(4):487-92 A low serum T3 or T4 (hypothyroidism) is found in cardiac failure: 26. Khaleeli AA, Memon N. Factors affecting resolution of pericardial effusions in primary hypothyroidism: a clinical, biochemical and echocardiographic study. Postgrad Med J. 1982 Aug;58(682):473-627. Reza MJ, Abbasi AS. Congestive cardiomyopathy in hypothyroidism. West J Med. 1975 Sep;123(3):228-3028. Rays J, Wajngarten M, Gebara OC, Nussbacher A, Telles RM, Pierri H, no G, Serro-Azul JB. Long-term prognostic value of triiodothyronine concentration in elderly patients with heart failure. Am J Geriatr Cardiol. 2003 Sep-Oct;12(5):293-7 (“Lower serum T3 in cardiac failure: the odds ratio for events was 9.8 (95% confidence interval,2.2-43, p=0.004) for patients in the lowest tertile of triiodothyronine, that is, lower than 80 ng/dL, compared with patients with levels above 80 ng/dL”)29. Pingitore A, Landi P, Taddei MC, Ripoli A, L'Abbate A, Iervasi G. Triiodothyronine levels for risk stratification of patients with chronic heart failure. Am J Med. 2005 Feb;118(2):132-6 30. Klein I, Ojama K. In: Werner & Ingbar’s The Thyroid, ed. Braverman LE & Utiger RD, Lippincott-Raven Publishers, Philadelphia, 1996, 62: 799-804 A low serum free T3 index/reverse T3 ratio in chronic heart failure patients is a highly significant predictor of poor outcome 31. Cerillo AG, Bevilacqua S, Storti S, ni M, Kallushi E, Ripoli A, Clerico A, Glauber M. Free triiodothyronine: a novel predictor of postoperative atrial fibrillation. Eur J Cardiothorac Surg. 2003 32. Hamilton MA, son LW, Luu M, Walden JA. Altered thyroid hormone metabolism in advanced heart failure. J Am Coll Cardiol. 1990 Jul;16(1):91-5 33. Kozdag G, Ural D, Vural A, Agacdiken A, Kahraman G, Sahin T, Ural E, Komsuoglu B. Relation between free triiodothyronine/free thyroxine ratio, echocardiographic parameters and mortality in dilated cardiomyopathy. Eur J Heart Fail. 2005 Jan;7(1):113-8 A low serum T3 or T4 in heart patients is associated with an increased risk of cardiac arrest/death 34. Wortsman J, Premachandra BN, Chopra IJ, JE. Hypothyroxinemia in cardiac arrest. Arch Intern Med. 1987 Feb;147(2):245-8 35. Iervasi G, Pingitore A, Landi P, Raciti M, Ripoli A, Scarlattini M, L'Abbate A, Donato L. Low-T3 syndrome: a strong prognostic predictor of death in patients with heart disease. Circulation. 2003 Feb 11;107(5):708-13 Cardiovascular disease and mortality is increased in hypothyroidism (+ 70 % for both) 36. Dorr M, Volzke H. Cardiovascular morbidity and mortality in thyroid dysfunction. Minerva Endocrinol. 2005 Dec;30(4):199-216 Thyroid therapy of cardiac patientsCorrective thyroid therapy is safe in hypothyroid patients with common benign cardiac arrhythmias at the condition that thyroid treatment is started at low doses and then gradually and prudently increased to the adequate dose. The treatment does not trigger an increase in arrhythmia frequency except in rare patients with baseline atrial premature beats. It is, however, associated with an increase in basal, average and maximal heart rates.37. Polikar R, Feld GK, Dittrich HC, J, Nicod P. Effect of thyroid replacement therapy on the frequency of benign atrial and ventricular arrhythmias. J Am Coll Cardiol. 1989 Oct;14(4):999-1002Thyroid therapy corrects the bradycardia of hypothyroidism38. Yamauchi K, Takasu N, Ichikawa K, Yamada T, Aizawa T. Effects of long-term treatment with thyroxine on pituitary TSH secretion and heart action in patients with hypothyroidism. Acta Endocrinol (Copenh). 1984 Oct;107(2):218-24 (“T4 doses should be adjusted to maintain normal ET/PEP (systolic time intervals) rather than normal serum TSH levels”)Thyroid therapy corrects the ventricular arrhythmia39. Vanin LN, Smetnev AS, Sokolov SF, Kotova GA, Masenko VP. Thyroid function in patients with ventricular arrhythmia. Kardiologiia. 1989 Feb;29(2):64-7 (“Thyroid therapy for hypothyroidism led to the disappearance of paroxysms of ventricular tachycardia and reduced the total number and grades of ventricular extra-systoles in patients with ventricular arrhythmias; moreover, sensitivity to antiarrhythmic agents developed to replace an earlier resistance”) Coronary heart disease in humans: the improvement with thyroid treatment 40. BO. Prophylaxis of ischaemic heart-disease by thyroid therapy. Lancet. 1959 Aug 22;2:149-52 41. Holland FW 2nd, Brown PS Jr, RE. Acute severe postischemic myocardial depression reversed by triiodothyronine. Ann Thorac Surg. 1992 Aug;54(2):301-5 42. Israel M. An effective therapeutic approach to the control of atherosclerosis illustrating harmlessness of prolonged use of thyroid hormone in coronary disease. Am J Dig Dis. 1955 June;161-8 43. Yokoyama Y, Novitzky D, Deal MT, Snow TR. Facilitated recovery of cardiac performance by triiodothyronine following a transient ischemic insult. Cardiology. 1992;81(1):34-45 Adequate thyroxine replacement in hypothyroidism prevents coronary artery disease progression 44. Perk M, O’Neill BJ; The effect of thyroid therapy on angiographic artery disease progression . Can J Card. 1997;13(3):273-6 Desiccated thyroid therapy improves cardiac failure refractory to digitalis in humans 45. Zondek H. Myxedema Heart. Munch Med Wochenschr. 1918, 65: 1180-3 46. Khaleeli AA, Memon N. Factors affecting resolution of pericardial effusions in primary hypothyroidism: a clinical, biochemical and echocardiographic study. Postgrad Med J. 1982 Aug;58(682):473-6 T3-therapy improves the outcome of open heart sugery, especially heart transplants 47. Novitzky D, Fontanet H, Snyder M, Coblio N, D, Parsonnet V. Impact of triiodothyronine on the survival of high-risk patients undergoing open heart surgery. Cardiology. 1996 Nov-Dec;87(6):509-15. 48. Novitzky D, DK, Chaffin JS, Greer AE, DeBault LE, Zuhdi N. Improved cardiac allograft function following triiodothyronine therapy to both donor and recipient. Transplantation. 1990 Feb;49(2):311-6 Thyroid hormone therapy greatly reduces the lesions of experimental myocardial infarct in rats 49. Holland FW, Brown PS, RE. Acute severe postischemic myocardial depression reversed by triiodothyronine. Ann Thorac Surg 1992 54: 301-305 Thyroid therapy reduces coronary artery disease and cardiac fibrosis in mice50. Yao J, Eghbali M. Decreased collagen mRNA and regression of cardiac fibrosis in the ventricular myocardium of the tight skin mouse following thyroid hormone treatment. Cardiovasc Res. 1992 Jun;26(6):603-7Thyroid therapy reduced the lesions of experimental cardiac arrest in dogs51. Facktor MA, Mayor GH, Nachreiner RF, D'Alecy LG. Thyroid hormone loss and replacement during resuscitation from cardiac arrest in dogs. Resuscitation. 1993 Oct;26(2):141-62 Thyroid therapy reduced the complications of hemorrhagic shock in dogs 52. Shigematsu H, Shatney CH. The effect of triiodothyronine (T3) and reverse triiodothyronine (rT3) on canine hemorrhagic shock. Nippon Geka Gakkai Zasshi. 1988 Oct;89(10):1587-93. ********************************************* THYROID THERAPY AND BONE DENSITY Studies with association between thyroid therapy and increased loss of bone density Bone loss during thyroid treatment mainly occurs in HRT untreated postmenopausal women and who have a suppressed TSH, possibly being overtreated with thyroid hormones 4. Taelman P, Kaufman JM, Janssens X, Vandecauter H, Vermeulen A. Reduced forearm bone mineral content and biochemical evidence of increased bone turnover in women with euthyroid goitre treated with thyroid hormone. Clin Endocrinol (Oxf). 1990 Jul;33(1):107-175. Stall GM, S, Sokoll LJ, Dawson- B. Accelerated bone loss in hypothyroid patients overtreated with L-thyroxine. Ann Intern Med. 1990 Aug 15;113(4):265-96. Adlin EV, Maurer AH, Marks AD, Channick BJ. Bone mineral density in postmenopausal women treated with L-thyroxine. Am J Med. 1991 Mar;90(3):360-6 7. TL, Kerrigan J, AM, Braverman LE, Baran DT. Long-term L-thyroxine therapy is associated with decreased hip bone density in premenopausal women. JAMA. 1988;259:3137-41 Bone loss is mainly transitory only during the first year with no increased fracture incidence8. Tremollieres F, Pouilles JM, Louvet JP, Ribot C. Transitory bone loss during substitution treatment for hypothyroidism. Results of a two year prospective study. Rev Rhum Mal Osteoartic. 1991 Dec;58(12):869-759. Ribot C, Tremollieres F, Pouilles JM, Louvet JP. Bone mineral density and thyroid hormone therapy. Clin Endocrinol (Oxf). 1990 Aug;33(2):143-53 Oestrogen therapy neutralizes, prevents bone loss induced by corrective thyroid therapy 10. Schneider DL, Barrett-Connor EL, Morton DJ. Thyroid hormone use and bone mineral density in elderly women. JAMA 1994;271:1245-9 Studies where thyroid therapy does not cause or increase loss of bone density 11. Greenspan SL, Greenspan FS, Resnick NM, Block JE, Friedlander AL, Genant HK. Skeletal integrity in premenopausal and postmenopausal women receiving long-term L-thyroxine therapy Am J Med. 1991;91:5-14 12. lyn JA, Betteridge J, Daykin J, Holder R, Oates GD, Parle JV, Lilley J, Heath DA, Sheppard MC. Long-term thyroxine treatment and bone mineral density. Lancet. 1992 Jul 4;340(8810):9-13 13. Eulry F, Bauduceau B, Lechevalier D, Magnin J, Crozes P, Flageat J, Gautier D. Bone density in differentiated cancer of the thyroid gland treated by hormone-suppressive therapy. Study based on 51 cases. Rev Rhum Mal Osteoartic. 1992 Apr;59(4):247-5214. Grant DJ, McMurdo ME, Mole PA, Paterson CR, Davies RR. Suppressed TSH levels secondary to thyroxine replacement therapy are not associated with osteoporosis. Clin Endocrinol (Oxf). 1993 Nov;39(5):529-33. Studies where thyroid therapy improves bone formation 15. Svanberg E, Healey J, Mascarenhas D. Anabolic effects of rhIGF-I/IGFBP-3 in vivo are influenced by thyroid status. Eur J Clin Invest. 2001 Apr;31(4):329-36 " 3. You had a short synacthen test to assess adrenocortical reserve (a test to see if you are producing sufficient adrenal steroid hormones) in May 2010 and this was found to be more than adequate, with a peak serum cortisol value of 901nmol/l (Le. a response to the injection showing very healthy adrenal steroid production). " This test is ONLY done to see whether the patient has either 's disease (too little to no cortisol production) or Cushing's Syndrome (too high a level of cortisol secretion). It does not show whether the patient has 'adrenal fatigue' or 'low adrenal reserve' which are the STAGES leading up to 's disease. In fact, because doctors do not recognise any of these stages, they are allowing the patient to reach complete adrenal insufficiency ('s disease) which is quite appalling. Cortisol production has a diurnal rhythm and should be tested at four specifric times during the day, i.e. 8.00a.m. - 12 noon, - 4.00p.m. and again at midnight. Taking a 'snapshot' of this in the morning only does not give a total picture. " 4. You were again found to have entirely normal test of thyroid function. A check of serum prolactin, gonadotrophins, random oestradiol and IGF- 1 (various pituitary and other hormones) were all normal. Did you get the actual results given for these Dawn together with the reference range for each test done? If not, get these and post them on the forum? " 5. In the absence of a rise in TSH (and in the absence of a fall in serum free T4 and T3 (the main hormones produced by the thyroid gland) there is no biochemical evidence of primary hypothyroidism in your case. Consequently there is no established indication for thyroxine replacement therapy. Furthermore, in the absence of a diagnosis of primary hypothyroidism it is not logical, or good practice, to ascribe a patient's symptoms to that diagnosis.**Please see above. The thyroid function blood test results DO NOT INDICATE EUTHYROID HYPOMETABOLISM which over 250,000 people in the UK suffer from. DOES THYROID TREATMENT DEFINITELY SUPPRESS THE THYROID GLAND?No, after stopping thyroid medications, the thyroid axis recovers its initial condition in 2 to 3 weeks on the average1. Krugman LG, Hershman JM, Chopra IJ, Levine GA, Pekary E, Geffner DL, Chua Teco GN. Patterns off recovery of the hypothalamic-pituitary-thyroid axis in patients taken of chronic thyroid therapy. J Clin Endocrinol Metab. 1975 Jul;41(1):70-80 (full recoveryback to initial serum T3, T4, TSH levels is obtained after a mean of 16 to 22 days, even after 28 years of treatment) 2. Vagenakis AG, Braverman LE, Azizi F, Portinay GI, Ingbar SH. Recovery of pituitary thyrotropic function after withdrawal of prolonged thyroid-suppression therapy. N Engl J Med. 1975 Oct 2;293(14):681-4 (“During exogenous hormone administration, 131l uptake was suppressed, and serum thyrotropin concentrations before and after administration of thyrotropin-releasing hormone were undetectable. …. After withdrawal of long-term thyroid hormone, decreased thyrotropin reserve persisted for two to five weeks. Detectable values of serum thyrotropin (less than 1.2 muU per milliliter) and a normal 131l uptake usually occurred concurrently in two to three weeks. Serum thyroxine concentration returned to normal at least four weeks after hormone withdrawal.”) 3. Greer MA. The effect on endogenous thyroid activity of feeding desiccated thyroid to normal human subjects. N Engl J Med. 1951 Mar 15;244(11):385-90 (“After withdrawal of thyroid therapy, thyroid function returned to normal in most subjects within 2 weeks, although a few were depressed ofr 6-11 weeks. Thyroid function returned as rapidly in those whose glands had been depressed by several years of thyroid medication as it did for those whose glands had been depressed for only a few days.”) 4. Mosier HD, DeGolia RC. Effect of prolonged administration of thyroid hormone on thyroid gland function of euthyroid children. J Clin Endocrinol Metab. 1960 Sep;20:1296-301. (“In all of the echildren and adolescents included in this study, thyroid function returned to normal (as judged by clinical signs ans by laboratory measurements) within four months after discontinuing thyroid hormone,in spite of previous administration of suppressive doses for periods of 20 too 125 months during years of somatic growth”). 5. Farquharson RF, Squires AH. Inhibition of the secretion of the thyroid gland by continued ingestion of thyroid substance. Tr A Am Physicians. 1941;56:876. ston MW, Squires AH, Farquharson RF. The effect of prolonged administration of thyroid. Ann Intern Med. 1951 Nov;35(5):1008-22 7. Riggs DS, Man EB, Winkler AW. Serum iodine of euthyroid subjects treated with desiccated thyroid. J Clin Invest. 1945;24:722-31 8. Stein RB, Nicoloff JT. Triiodothyronine withdrawal test -a test of thyroid-pituitary adequacy. J Clin Endocrinol Metab. 1971 Feb;32(2):127-9 If the thyroid treatment is stopped because it is judged not necessary, recovery takes place9. Rubinoff H, Fireman BH. Testing for recovery of thyroid function after withdrawal of long-term suppression therapy. J Clin Epidemiol. 1989;42(5):417-20 (At 8 weeks, 30 of the 45 patients whose chart reviews did not demonstrate a clear need for thyroid replacement., were normal) 6. you request further information regarding the diagnosis and management of hypothyroidism with University Hospitals Birmingham Foundation Trust. The practice of the large and expert team in endocrinololoy is indeed in accord with the British and American Thyroid Associations and readily available on their websites. You need to ask WHY they are in accordance with the BTA and ATA when the BTA have produced NO hypothyroid guidelines whatsoever. Doctors are allowed to use whatever guidelines/guidance/statements on the diagnosing and treatment of hypothyroidism that they wish, even if these have been produced in another country so long as they can back up their reasons for picking a particular guideline to follow. All statements in guidelines, guidance, statements must be backed up with the scientific evidence to research and studies to show that all statements are correct when dealing with the lives of those suffering. 7. There is considerable peer reviewed and published information in the medical literature on the potential risks associated with thyroxine treatment in doses causing suppression of serum TSH. Agreed - See references above. I think that's the main ones - hope everyone's blood pressure is ok after reading it!! From a very cross and irritated Dawn ___ Quote Link to comment Share on other sites More sharing options...
Guest guest Posted August 30, 2011 Report Share Posted August 30, 2011 Hi Dawn this is probably a bit late for a reply but I should have mentioned that somebody from ICAS told me that the Ombudsman was sending back complaints to be solved locally in quite a few cases . Hence your idea of continuing locally is probably the best -you can say you followed all avenues . Make sure you have ALL your records Its funny what the other side can come up with . Don't get out of time on this as there are time limits -get replies back as quickly as possible . I gave the hospital too long but in the end it was all considered as issues were linked . Good luck Quote Link to comment Share on other sites More sharing options...
Guest guest Posted August 31, 2011 Report Share Posted August 31, 2011 > Hi Shelia>> That's brilliant - thank you so much - I let you know how it goes!>> Dawn x>>>> ________________________________> Keep scrolling. This is long. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You are posting as a guest. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.