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  • Title: [Perioperative management of the diabetic patient in cardiac surgery with extracorporeal circulation].
    Author: Olguín R, Medina H, Luna P, Pratz M, Posadas C.
    Journal: Arch Inst Cardiol Mex; 1985; 55(5):389-94. PubMed ID: 2935094.
    Abstract:
    The hyperglycemia usually observed in patients undergoing heart surgery with extracorporeal circulation (EC) represents a difficult therapeutic problem. We studied the effects of several regimens of insulin therapy on serum glucose (SG) in 24 noninsulin dependent diabetic patients (NIDDs). The patients were randomly divided in five groups; group A received on IV bolus of 10.0-50.0 U/h according to glycosuria; groups B, C, D and E were given a continuous iv insulin infusion of 2.5, 5.0, 7.5 and 10.0 U/h respectively. In 10 non-diabetic patients (NDP) SG levels were also measured, but insulin was not given. A mean of 5.0 l/m2 of body surface of fluids containing 300 g of glucose were administered to all patients during surgery. At the operations SG levels rose progressively soon after the anesthesia was started, reached the highest values during the period of EC, and decreased slowly in blood samples taken after the EC phase and by 24h. This patterns was shown by all groups studied statistically significant lower SG levels, however, were observed in patients of group C, whose values were similar to those seen in the NDP group. Groups D and E had slightly higher SG levels than those of group C. An additional NIDDM patient with advanced chronic renal failure (CRF), had a tendency to hypoglycemia even during the EC period in response to relatively low doses of insulin (2.5 U/h), given by a continuous iv infusion and, although the insulin administration was stopped, his SG levels remained well below the mean values of the other patients for the rest of the operation.(ABSTRACT TRUNCATED AT 250 WORDS)
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