RESUMO
<p><b>OBJECTIVE</b>To evaluate the effect of ROUX-en-Y anastomosis and Billroth-II anastomosis after subtotal gastrectomy on blood glucose in patients with type 2 diabetes.</p><p><b>METHODS</b>From January 2006 to December 2009, 26 and 24 type 2 diabetic patients underwent subtotal gastrectomy for gastric cancer or gastric ulcer and received subsequent ROUX-en-Y anastomosis and Billroth-II anastomosis, respectively. Perioperative and postoperative blood glucose and glycosylated hemoglobin (HbA1c) were detected in these patients to identify the variations.</p><p><b>RESULTS</b>In ROUX-en-Y group, the fasting blood glucose (FBG) of the patients decreased significantly in the first month after the operation (t=4.46, P<0.05), and the 2-hour postprandial glucose (2hPG) and HbA1c also underwent significant reductions in the first postoperative week and month, respectively (t=3.5, P<0.05; t=2.21, P<0.05). In Billroth-II group, the FBG decreased significantly till 6 months after the operation (t=2.0, P<0.05), and HbA1c reduction occurred 3 months after the operation (t=2.61, P<0.05). There were significant differences in FBG in the first postoperative month, 2hPG in the 6th month, and HbA1c in the 3rd month between the two groups (P<0.05).</p><p><b>CONCLUSION</b>The ROUX-en-Y anastomosis and Billroth-II anastomosis after subtotal gastrectomy can both reduce blood glucose of type 2 diabetic patients, but the former approach has better effect.</p>