Resting energy expenditure and nitrogen loss after surgery in chronically undernourished patients

World Journal of Surgery
I S FernandezP S Shetty

Abstract

Chronically undernourished patients (n = 10) undergoing elective abdominal surgery were assessed with regard to their energy expenditure and urinary nitrogen loss. These measurements were made for 1 week after the surgery, and stress factors for each parameter were computed. The responses of the chronically undernourished patients were compared to those of relatively well nourished patients (n = 10) undergoing comparable surgeries. It was found that the postoperative resting energy expenditure (REE) of the chronically undernourished patients was not significantly elevated when compared to their preoperative values (mean +/- SEM): 1210.66 +/- 88.13, 1354.91 +/- 86.61, 1215.09 +/- 89.68, and 1188.23 +/- 86.61 kcal/day preoperatively and on postoperative days 1, 4, and 8, respectively. On the other hand, the postoperative REE of the controls was significantly elevated (p < 0.05) over their baseline values: 1357.18 +/- 70.81, 1574.66 +/- 100.35, 1502.89 +/- 109.44, and 1477.23 +/- 83.52; kcal/day, respectively, for the same days. The stress factors for the controls were higher than those for the undernourished (1.16 versus 1.12, 1.11 versus 1.00, and 1.09 versus 0.98 on postoperative days 1, 4, and 8, respectively). The urinary nit...Continue Reading

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Citations

Jul 1, 1996·The British Journal of Nutrition·M VazP S Shetty
Mar 6, 2012·Clinical Nutrition : Official Journal of the European Society of Parenteral and Enteral Nutrition·Georg KreymannGary P Zaloga
Oct 23, 1997·The British Journal of Nutrition·L ScalfiN Battistini

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