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Elective surgery was performed after overnight fasting, a routine that may affect the metabolic response to surgery. We investigated the effects of insulin and glucose infusions before and during surgery on postoperative substrate utilization and insulin sensitivity. Seven patients were given insulin and glucose infusions 3 h before and during surgery (insulin group), and a control group of six patients underwent surgery after fasting overnight. Insulin sensitivity and glucose kinetics (D-[6,6-2H2]glucose) were measured before and immediately after surgery using a hyperinsulinemic, normoglycemic clamp. Glucose infusion rates and whole body glucose disposal decreased after surgery in the control group (-40 and -29%, respectively), whereas no significant change was found in the insulin group (+16 and +25%). Endogenous glucose production remained unchanged in both groups. Postoperative changes in cortisol, glucagon, fat oxidation, and free fatty acids were attenuated in the insulin group (vs. control). We conclude that perioperative insulin and glucose infusions minimize the endocrine stress response and normalize postoperative insulin sensitivity and substrate utilization.

Type

Conference paper

Publication Date

07/1998

Volume

275

Pages

E140 - E148

Keywords

Arthroplasty, Replacement, Hip, Blood Glucose, C-Peptide, Calorimetry, Indirect, Fatty Acids, Nonesterified, Female, Glucagon, Glucose, Glucose Clamp Technique, Humans, Hydrocortisone, Infusions, Intravenous, Insulin, Insulin-Like Growth Factor Binding Protein 1, Insulin-Like Growth Factor I, Intraoperative Period, Lactates, Male, Middle Aged, Postoperative Period