Comparison of predicted and measured energy expenditure in mechanically ventilated obese patients

H. M. O'Connell, Brian L Erstad

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Objective: To test the appropriateness of using actual body weight (ABW), ideal body weight (IBW), or an adjusted weight for predicting caloric requirements in moderately obese, mechanically ventilated patients receiving parenteral or enteral nutrition. Design: Prospective, nonrandomized pilot study involving seven patients. Setting: University medical center. Main Outcome Measures: Predicted caloric requirements based on ABW, IBW, or an adjusted weight were compared with measured requirements by indirect calorimetry after parenteral nutrition or tube feedings were at goal rate for 24-72 hours. Results: Mean differences between predicted and measured energy requirements for ABW, IBW, and adjusted weight were 821 ± 556 (p < 0.05), - 256 ± 493, and 182 ± 501 kcal/d, respectively. Conclusions: Until additional studies are available, IBW or adjusted weight should be used for calculating caloric requirements in the moderately obese patient being mechanically ventilated when actual measurements are not available.

Original languageEnglish (US)
Pages (from-to)47-49
Number of pages3
JournalJournal of Pharmacy Technology
Volume11
Issue number2
StatePublished - 1995

Fingerprint

Ideal Body Weight
Energy Metabolism
Parenteral Nutrition
Weights and Measures
Body Weight
Enteral Nutrition
Indirect Calorimetry
Outcome Assessment (Health Care)

ASJC Scopus subject areas

  • Pharmaceutical Science

Cite this

Comparison of predicted and measured energy expenditure in mechanically ventilated obese patients. / O'Connell, H. M.; Erstad, Brian L.

In: Journal of Pharmacy Technology, Vol. 11, No. 2, 1995, p. 47-49.

Research output: Contribution to journalArticle

@article{682e0682d70a482ba091c85e29283e71,
title = "Comparison of predicted and measured energy expenditure in mechanically ventilated obese patients",
abstract = "Objective: To test the appropriateness of using actual body weight (ABW), ideal body weight (IBW), or an adjusted weight for predicting caloric requirements in moderately obese, mechanically ventilated patients receiving parenteral or enteral nutrition. Design: Prospective, nonrandomized pilot study involving seven patients. Setting: University medical center. Main Outcome Measures: Predicted caloric requirements based on ABW, IBW, or an adjusted weight were compared with measured requirements by indirect calorimetry after parenteral nutrition or tube feedings were at goal rate for 24-72 hours. Results: Mean differences between predicted and measured energy requirements for ABW, IBW, and adjusted weight were 821 ± 556 (p < 0.05), - 256 ± 493, and 182 ± 501 kcal/d, respectively. Conclusions: Until additional studies are available, IBW or adjusted weight should be used for calculating caloric requirements in the moderately obese patient being mechanically ventilated when actual measurements are not available.",
author = "O'Connell, {H. M.} and Erstad, {Brian L}",
year = "1995",
language = "English (US)",
volume = "11",
pages = "47--49",
journal = "Journal of Pharmacy Technology",
issn = "8755-1225",
publisher = "Harvey Whitney Books Company",
number = "2",

}

TY - JOUR

T1 - Comparison of predicted and measured energy expenditure in mechanically ventilated obese patients

AU - O'Connell, H. M.

AU - Erstad, Brian L

PY - 1995

Y1 - 1995

N2 - Objective: To test the appropriateness of using actual body weight (ABW), ideal body weight (IBW), or an adjusted weight for predicting caloric requirements in moderately obese, mechanically ventilated patients receiving parenteral or enteral nutrition. Design: Prospective, nonrandomized pilot study involving seven patients. Setting: University medical center. Main Outcome Measures: Predicted caloric requirements based on ABW, IBW, or an adjusted weight were compared with measured requirements by indirect calorimetry after parenteral nutrition or tube feedings were at goal rate for 24-72 hours. Results: Mean differences between predicted and measured energy requirements for ABW, IBW, and adjusted weight were 821 ± 556 (p < 0.05), - 256 ± 493, and 182 ± 501 kcal/d, respectively. Conclusions: Until additional studies are available, IBW or adjusted weight should be used for calculating caloric requirements in the moderately obese patient being mechanically ventilated when actual measurements are not available.

AB - Objective: To test the appropriateness of using actual body weight (ABW), ideal body weight (IBW), or an adjusted weight for predicting caloric requirements in moderately obese, mechanically ventilated patients receiving parenteral or enteral nutrition. Design: Prospective, nonrandomized pilot study involving seven patients. Setting: University medical center. Main Outcome Measures: Predicted caloric requirements based on ABW, IBW, or an adjusted weight were compared with measured requirements by indirect calorimetry after parenteral nutrition or tube feedings were at goal rate for 24-72 hours. Results: Mean differences between predicted and measured energy requirements for ABW, IBW, and adjusted weight were 821 ± 556 (p < 0.05), - 256 ± 493, and 182 ± 501 kcal/d, respectively. Conclusions: Until additional studies are available, IBW or adjusted weight should be used for calculating caloric requirements in the moderately obese patient being mechanically ventilated when actual measurements are not available.

UR - http://www.scopus.com/inward/record.url?scp=0028924213&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0028924213&partnerID=8YFLogxK

M3 - Article

VL - 11

SP - 47

EP - 49

JO - Journal of Pharmacy Technology

JF - Journal of Pharmacy Technology

SN - 8755-1225

IS - 2

ER -