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Journal watch - 14/02/13

Obesity and the microvasculature: a systematic review and meta-analysis.
This systematic review aims to review the association between obesity and microvasculature health, measured through the calibre of vasculature in the retina. They found that a single-point increase in BMI was associated with a 0.07 μm decrease in arteriolar calibre, and 0.22 μm in the venular calibre.

Adherence to vitamin supplementation following adolescent bariatric surgery.
How easy is it to get adolescents to follow a vitamin regime after bariatric surgery? About as easy as it is to get them to do just about anything else, apparently: this study found a 29.8% adherence rate during a six-month period. The main reported factors stopping adolescents from taking their supplements were forgetting, and difficulty swallowing.

Endoscopic Revision (StomaphyX) versus Formal Surgical Revision (Gastric Bypass) for Failed Vertical Band Gastroplasty.
Using gastric bypass as a revision for a failed vertical band gastroplasty may result in greater weight loss than an endoscopic pouch reduction using a StomaphyX, but it is also more dangerous: this study reported a 43.5% complication rate and one mortality following bypass. The high complication rate and risk of death led the authors of this study to recommend the StomaphyX as a safer, if less effective, alternative.

The “T-Suspension Tape” for Liver and Gallbladder Retraction in Bariatric Surgery: Feasibility, Technique, and Initial Experience
This study describes a surgeon-developed method of liver retraction, which uses the tail of a Jackson–Pratt drain attached to a suture on a long straight needle, secured to the abdominal wall. The surgeons describe their method simple, safe, and cheap, providing “excellent” working space and visualisation. (Full text)