Surgical Risks for Diabetic Patients: Can Surgery Lower Blood Glucose?

Introduction to Diabetes Surgery

Gastric bypass surgery was first performed in 1885 by an Austrian surgeon to treat gastric cancer. In the 1950s, it evolved into a bariatric procedure. In 1995, a 14-year clinical follow-up study involving 146 obese patients demonstrated that glycemic targets were achieved in 80% of patients after gastric bypass surgery. Following decades of refinement and advancement, in March 2011, the International Diabetes Federation issued a statement recommending surgical intervention for patients with early-stage type 2 diabetes. In the same year, the Chinese Diabetes Society officially incorporated surgical treatment for diabetes into the Guidelines for the Prevention and Treatment of Diabetes in China. Gastric bypass surgery thus emerged as a promising new therapeutic option capable of achieving remission—or even cure—of type 2 diabetes.

Mechanism of Glycemic Control via Gastric Bypass Surgery

Gastric bypass surgery can achieve durable remission—or even clinical cure—of diabetes in a single procedure due to its unique alteration of the physiological pathway of food transit. The operation involves gastric partitioning, gastrojejunostomy, and jejunojejunostomy. Postoperatively, insulin resistance is significantly reduced. Moreover, the altered nutrient flow stimulates endogenous insulin secretion, decreases pancreatic beta-cell apoptosis, promotes beta-cell proliferation, and ultimately restores pancreatic islet function—thereby enabling diabetes remission or cure.

Risks Associated with Gastric Bypass Surgery

Gastric bypass surgery is not a novel technique; it has been performed internationally for nearly half a century and is now considered a well-established, routine therapeutic modality. Although technically more complex than standard gastrointestinal procedures, it remains relatively straightforward—and safe—even for elderly patients up to age 70. Importantly, it does not impair patients’ quality of life postoperatively.