Diabetic management by insulin infusion during major surgery.

In five insulin-requiring, uremic diabetic patients undergoing renal transplantation, we infused insulin intravenously at a low rate to maintain plasma glucose levels between 100 and 200 mg/100 ml. In those patients receiving 100 mg or more of prednisone per day and 5 per cent dextrose solution, the hourly infusion rate was determined from tthe following equation: insulin (U) = plasma glucose value divided by 100. When prednisone was not given or when the patient was thin, the ratio became: plasma glucose value divided by 150. Results were compared with those of nineteen similar transplant patients treated with conventional subcutaneous insulin therapy during surgery, and significantly better glucose control was achieved with the low dosage, intravenous infusion.