[Resorption and hormonal reaction in the perioperative phase following enteral administration of glucose].

It was the aim of this study to find out whether a postoperative enteral nutrition with glucose is possible. Therefore, an intraduodenal glucose load (15 g/7.5 min.; 20% solution) was applied in 14 patients with normal weight and no metabolic disorders before and on 4 consecutive days after a medium severe abdominal operation. The results show that the resorption of the enterally applied glucose is reduced only on the first postoperative day. After the peak values have been reached, the decrease of glucose from the blood is delayed up to the second postoperative day, although during the whole testing period the insulin secretion--calculated according to the insulinogenic index - corresponds to the glucose stimulation. Thus, an early postoperative enteral nutrition with glucose seems to be possible, but the reduced absorption over a short period has to be taken into consideration.