Background: Laparoscopic sleeve gastrectomy with duodenojejunal bypass (LSG-DJB) has been designated as a novel bariatric surgery procedure. This combination of sleeve gastrectomy and proximal intestinal bypass theoretically offers an effective and prolonged anti-diabetes effect. This is a follow-up of our institution's previous report on the short-term effects of LSG-DJB on type 2 diabetes mellitus (T2DM), which a 68.7 % remission (HbA1c <6 % without diabetes medication) rate 1 year after surgery. The aforementioned result was comparable to the reported remission rates of laparoscopic Roux-en-Y gastric bypass. However, the durability of remission remains unknown.
Objective: The objective of this study is to investigate the medium-term (up to 5 years) effects of LSG-DJB on weight loss and T2DM.
Methods: In this analysis, consecutive 120 patients (female to male ratio = 61:59, mean age = 44.8 years) with T2DM who underwent LSG-DJB from April 2007 to November 2013 and were followed up beyond 1 year were included. The preoperative mean body weight and BMI were 105.7 kg and 38.5 kg/m, respectively. The mean HbA1c and fasting blood glucose values were 8.9 % and 194 mg/dL, respectively. The mean duration of T2DM was 7.3 years. Fifty-five patients (46 %) were being treated with insulin prior to surgery.
Results: The follow-up rate was 97.5 % at 1 year, 73.3 % at 3 years, and 50.0 % at 5 years. The mean body weight was 74.9 kg at 1 year, 76.8 kg at 3 years, and 72.8 kg at 5 years (p < 0.001, compared to the baseline). The mean percent of total body weight loss (%TWL) was 28.9, 28.6, and 30.7 % at 1, 3, and 5 years, respectively. Remission of T2DM was achieved at 63.6, 55.3, and 63.6 % at 1, 3, and 5 years, respectively. Among those who achieved diabetes remission at 1 year, 10.8 % of them experienced recurrence during the subsequent follow-up period.
Conclusion: Although recurrence of T2DM is observed in some patients over time, LSG-DJB is an effective procedure for achieving significant weight loss and improvement of glycemic control, and the effects seem to be durable up to 5 years.
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