geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Resting energy expenditure in the critically ill: estimations versus measurement


, : Resting energy expenditure in the critically ill: estimations versus measurement. British Journal of Surgery 75(9): 875-878

A prospective trial was conducted in 20 surgical intensive care unit patients receiving mechanical ventilation to compare estimates of resting energy expenditure (REE) with the measured values. The 12 women and 8 men (mean age 61.7 +/- 2.8 (s.e.m.) years) underwent a full nutritional assessment before measurement of their REE by indirect calorimetry using the MGM II metabolic cart (Utah Medical). Their REE was estimated by the Harris-Benedict formula (mean 1324 +/- 53 (s.e.m.) kcal/day) as well as an empirical formula (where empirical formula = 22 x body weight in kg) (1370 +/- 68 (s.e.m.) kcal/day). Results by either estimate were not statistically different from the measured resting energy expenditure (MREE) (1382 +/- 130 (s.e.m.) kcal/day), by one-way analysis of variance. No multiplication factors were needed to relate the Harris-Benedict formula to MREE in this critically ill population and the estimate by the empirical formula was as good and simpler to perform. Although values by the Harris-Benedict formula and empirical formula correlated significantly with MREE (P less than 0.05) the correlation coefficients were low: 0.48 and 0.45 respectively. Thus, mean estimates were excellent for the group but less predictive for the individual. Multiple linear regressions did reveal that body composition and metabolic stress were of greater predictive value, since an equation relating weight (P less than 0.003), sex (P less than 0.003), white blood cell count (P less than 0.003) and 24-h urinary creatinine excretion (P less than 0.05) could predict 76 per cent of the variation (r = 0.87) in the MREE with an overall significance of P = 0.0002. Given the importance of matching energy intake to needs in many critically ill patients who are mechanically ventilated, accurate measurement of the REE is recommended now that instrumentation is equal to the task.

US$29.90

PMID: 3179663


Other references

Lee, K.Y.; Hopkins, J.D.; Syvanen, M., 1991: Evolved neomycin phosphotransferase from an isolate of Klebsiella pneumoniae. A new aminoglycoside resistance gene (aphA1-IAB) confers high-level resistance to neomycin. The sequence of aphA1-IAB is closely related to aphA1 found in the transposons Tn4352, Tn903 and Tn602. For example, aphA1-IAB differs from aphA1-903 at fi...

Colpaert, F.C.; Kuyps, J.J.; Niemegeers, C.J.; Janssen, P.A., 1976: Discriminative stimulus properties of a low dl-amphetamine dose. Using a two-lever food-reinforced operant procedure, rats (n = 10) were trained to discriminate 0.16 mg/kg dl-amphetamine from saline. Over the dose range 0.08 to 0.63 mg/kg, cue detection was found to be dose-dependent (ED50: 0.13 mg/kg). However...

Stutterheim, CJ., 1982: Timing of breeding of the redbilled oxpecker (Buphagus erythrorhynchus) in the Kruger National Park. The reproductive activity of the red-billed oxpecker B. erythrorhynchus is governed primarily by the effects of rainfall and the onset of the laying cycle is dependent on the time of year at which the rain occurs. At the onset of the rainy season...

Gaunay, G.S.; Elsamra, S.E.; Richstone, L., 2016: Trocars: Site Selection, Instrumentation, and Overcoming Complications. In recent years, laparoscopy and robot-assisted procedures have become more commonplace in urology. Incorporation of these techniques into clinical practice requires extensive knowledge of the surgical approaches and complex instrumentation unique...

Bakirov A.B.; Sakiyev K.S., 1982: Pyroxenite-hornblendite formation from the Kara-Archa zone, northern Tien Shan. Izvestiya Akademii Nauk Kirgizskoy SSR = Kabarlary Kyrgyz SSR Ilimder Akademiyasynyn 1982(2): 17-24

Frolov A.A.; Medvedev A.V.; Dolina S.A.; Kuznetsova G.D.; Shul'gina G.I., 1984: Modeling various regimens of brain bioelectrical activity under normal conditions and in a state of enhanced convulsibility using a network of neuron like elements. Desynchronous (low voltage fast activity), synchronous (high voltage slow waves) as well as convulsive brain activities were simulated by a computer model of a neuronal population. Network excitatory and inhibitory elements possessed fundamental d...

Ng, L.L.; Chalmers, T.M.; McLeish, R.L.; Raggatt, P.R., 1985: Anti-arthritic propionic acid derivatives and 17-oxosteroid measurements--a direct interference. Many drugs interfere with the assay of urinary 17-oxo and oxogenic steroids. Some propionic acid derivatives, in particular, tiaprofenic acid, have now been shown to affect this assay. Care should be taken when interpreting results in patients on...

Meyers, J.J.; Herrel, A.; Nishikawa, K.C., 2000: Morphological specializations of the feeding system in horned lizards. Lizards of the genus Phrynosoma have long been noted as dietary specialists, feeding predominately on various species of ants. Several studies looking at the diet of the fourteen different species of Phrynosoma have noted that there appears to be...

Stephenson, N.R., 1967: Pharmaceutical product development from the viewpoint of the food and drug directorate. Medical Services Journal, Canada 23(3): 227-232

Komatsu, J.; Takayama, S.; Sasaki, T.; Holland Júnior, C.; Russo, M., 1976: Influence of zinc phosphate cement manipulation on pulpal response. Histological study in dogs' teeth. Revista Da Faculdade de Odontologia de Aracatuba 5(1-2): 127-134