The long-term complications after gastric surgery, including anatomical, physiological, nutritional metabolism, and absorption, are all called long-term complications after gastric surgery. This condition is more common in clinical practice and is closely related to internal medicine, including dumping syndrome, postprandial hypoglycemia, bile reflux gastritis, anastomotic ulcer, residual gastric cancer, etc. Due to the existence of these complications, patients suffer from postoperative pain, interfere with normal work and life, and also remind us to be cautious about gastric surgery, to strictly control the indications for surgery, to perform reasonable surgery, and to minimize the occurrence of complications. Postprandial hypoglycemia refers to the condition after gastric surgery, where blood sugar levels drop after eating2-3Within an hour, hypoglycemia occurs with varying degrees of severity. The cause is due to rapid gastric emptying after gastric resection, rapid absorption of glucose by the intestinal mucosa, leading to a sudden increase in blood sugar levels, and the result of excessive stimulation of insulin secretion. Therefore, it is believed that excessive secretion of insulin or allergic reaction to insulin is the cause of functional hypoglycemia in this condition. In addition, carbohydrates are quickly emptied from the stomach, entering the intestines in large quantities, which can inhibit excessive secretion of gastric juice, stimulate insulin secretion, and make hypoglycemia more pronounced. This condition can occur alone or coexist with dumping syndrome. A few patients may have dumping syndrome first, followed by postprandial hypoglycemia.
