Prospective study of 250 patients undergoing laparoscopic gastric banding using the two-step technique

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Abstract
The use of LAP-BAND adjustable gastric banding (LAGB) has gained tremendous popularity, but creation of the retrogastric tunnel is a considerable challenge, especially in the surgeon's early experience, and is associated with up to 10% band slippage and occasional gastric perforation. The two-step technique involves a crural dissection toward the angle of His through a pars flaccida approach. The technique facilitates passage of the band with no extensive posterior gastric wall dissection. A prospective study investigated 250 patients (207 women and 43 men) who underwent LAGB from January 1999 to May 2002 using a two-step dissection technique. The mean age of these patients was 37 years (range, 18-58 years). Their mean preoperative weight was 120 kg (range, 90-169 kg), and their mean body mass index was 44 kg/m2 (range, 36-68 kg/m2). All the procedures except two were completed laparoscopically, and there were no deaths. The mean operative time was 61 min (range, 35-150 min), and the mean hospital stay was 1.2 days (range, 1-5 days). At 3 years, the mean body mass index had decreased from 44 kg/m2 to means of 39.9, 37.3, 34.4, 32.4, and 31.7 kg/m2 at 3, 6, 12, 24, and 36 months, respectively. The mean excess weight loss was 42.1% at 1 year, 51.4% at 2 years, and 55.5% at 3 years. There were four band slippages (1.6%), no band erosion, and no major morbidity. The use of LAGB with the two-step technique is technically simple, avoids intimate posterior gastric wall dissection, and facilitates tight posterior band support. It therefore is associated with only minimal perioperative complications and a low slippage rate.

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