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Journal watch - 8/3/13

Substance Use Following Bariatric Weight Loss Surgery.
Adding to the body of literature suggesting that bariatric surgery may lead to increased substance use, this study found that two years after surgery, a group of patients reported that their intake of substances including alcohol, tobacco, and drugs, went up significantly. It notes increased alcohol intake among Roux-en-Y gastric bypass patients in particular. (Full text)

Laparoscopic Sleeve Gastrectomy (LSG)-A Good Bariatric Option for Failed Laparoscopic Adjustable Gastric Banding (LAGB): A Review of 90 Patients.
This review of 90 patients who had sleeve gastrectomy after a failed gastric band finds positive outcomes up to 48 months after surgery. However, the complication rate for revisional operations is higher than after sleeve gastrectomy as a primary operation. (Full text)

Weight Loss Induced by Roux-en-Y Gastric Bypass But Not Laparoscopic Adjustable Gastric Banding Increases Circulating Bile Acids.
This study investigates how levels of plasma bile acids are affected by bariatric operations, and how it might potentially explain the metabolic improvements seen after surgery. After patients had lost 20% of their body weight, plasma bile acids more than doubled after gastric bypass, but stayed the same or dropped lower after gastric banding. However, they did not find the increase after gastric bypass to be a significant predictor of metabolic improvement. (Full text)

Single-Incision Laparoscopic Adjustable Gastric Banding is Effective and Safe: 756 Cases in an Academic Medical Center.
This retrospective single-centre review of gastric banding as a single-port operation professes “excellent” results, with a higher average excess weight loss than in the multi-port control group. However, there was a slightly higher rate of complication and one death in the single-port group. (Full text)