Re: Is this formula have a name?

November 3, 2011

The simplified formula was tested vs the standard harris-benedict formula and vs

indirect calorimetry. There is no significant difference between using the rule

of the thumb (that is what we call that formula here in europe) and estimated

energy needs by indirect calorimetry and harris-benedict. ESPEN recommends it

and from my knowledge also GANEP (Brazilian office of parenteral and enteral

nutrition). There are several studies published with the comparison you can find

those references in ESPEN guidelines.

Cátia Borges, nutricionista

ARS Norte, Portugal

>

> Hi All and sorry for the cross-posting,

>

> We are all using the formula for estimating needs : 25-30 Kcal/kg etc.

> Does this formula has a name?

>

> Thanks

>

> Merav Levi, RD, MS, CDN, CSG

> A dietitian, not the food police.

>

> http://www.linkedin.com/in/meravlevi

>

> " Life is not measured by the number of breath you take, but by the moments

that take your breath away. " - Carlin

> " People don't forget the truth, they just become better in lying "

(Revolutionary Road)

>

November 3, 2011

Catia,

What is the citation for your statement?

As far as significance goes, the quick rule of thumb may be fine for many

situations seen in practice. When things are more complex, it's up to the RD to

use critical thinking to decide if quick rules of thumb no longer apply. In

those situations, it's time for the big guns; Holly is correct in that indirect

calorimetry is the gold standard. Lacking that, the EAL provides some guidance.

The 25-30 kcal/kg thing has been around long before the renal practice group got

hold of it. They are the ones, however, guilty of promoting that goofy

adjustment for obesity. That one has no scientific basis at all, yet folks still

use it.

Regards,

pam

Pam Charney, PhD, RD

Affiliate Associate Professor

Pharmacy

MS Student

Clinical Informatics and Patient Centered Technology

School of Nursing

University of Washington

Seattle, WA

pcharney@...

http://www.linkedin.com/in/pamcharney

> Except I've read for years that -Benedict has poor correlation to direct

calorimetry. So it's very low on the ADA's evidence-analysis library list of

predictive equations.

>

> I think I've heard that name before " rule of thumb " . Haven't seen published

studies validating it yet. But Europe & America often do things differently.

>

> Holly

>

> ----------

> Holly Lee Brewer, MS RD CDE

> Pediatric Dietitian, Diabetes Educator

> Medical Nutrition Therapist, Las Vegas, NV

>

> Maj Holly Brewer, USAFR BSC http://hollyinbalad.blogspot.com

> 301st MDS, NAS JRB Fort Worth (Carswell), TX

> Joint Base Balad, Iraq (Jan-Jul 2009)

>

> >________________________________

> >

> >To: rd-usa

> >Sent: Thursday, November 3, 2011 2:46 AM

> >Subject: Re: Is this formula have a name?

> >

> >The simplified formula was tested vs the standard harris-benedict formula and

vs indirect calorimetry. There is no significant difference between using the

rule of the thumb (that is what we call that formula here in europe) and

estimated energy needs by indirect calorimetry and harris-benedict. ESPEN

recommends it and from my knowledge also GANEP (Brazilian office of parenteral

and enteral nutrition). There are several studies published with the comparison

you can find those references in ESPEN guidelines.

> >

> >Cátia Borges, nutricionista

> >ARS Norte, Portugal

> >

> >>

> >> Hi All and sorry for the cross-posting,

> >>

> >> We are all using the formula for estimating needs : 25-30 Kcal/kg etc.

> >> Does this formula has a name?

> >>

> >> Thanks

> >>

> >> Merav Levi, RD, MS, CDN, CSG

> >> A dietitian, not the food police.

> >>

> >> http://www.linkedin.com/in/meravlevi

> >>

> >> " Life is not measured by the number of breath you take, but by the moments

that take your breath away. " - Carlin

> >> " People don't forget the truth, they just become better in lying "

(Revolutionary Road)

> >>

November 3, 2011