To explore the morbidity of surgery in connection with laparoscopic sleeve gastrectomy (LSG) and its effect on obese T2DM.

106 obese T2DM patientes undergoing LSG were divided into 2 groups in group 1 25 patients did not have oversewing the staple line and group 2 81 patients had the staple line oversewn in order to reduce bleeding.

The differences in intraoperative blood loss (35±15) ml vs. (28±18)ml, postoperative recovery time (2.4±0.9)d vs. (2.3±0.9)d, time to taking liquid food (4.7±1.0)d vs. (4.6±1.0)d between two groups were not significant. There were no significant difference of complication between 2 groups (χ²=3.271, P=0.071). Comparing before surgery to 6 month after surgery, the BMI in group 1, was from (39±5) to (29±4) kg/m^2; in group 2, from (40±6) to (31±5) kg/m^2, FPG in group 1, from (8.4±1.4) to (6.4±1.2) mmol/L; in group 2, from (8.2±2.0) to (6.8±1.5) mmol/L, 2 hour post-meal blood sugar [group 1, (13.2±4.1) to (9.6±3.2) mmol/L; group 2, (12.2±3.2) to (10.6±2.8) mmol/L] and HbA1c (group 1, 7.2%±1.2% to 5.5%±1.1%; group 2, 7.1%±1.1% to 5.9%±1.2%) decreased significantly in both groups (P<0.01). There was 72 (68%) remission cases of T2DM in 106 patients, there were no significant differences of T2DM remission and BMI between 2 groups at 6 months after surgery (P=0.617).

LSG leads to significant weight loss and T2DM control.

Diabetes mellitus, type 2; Gastrectomy; Postoperative complications