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©2013 UpToDate ® Print Email Adjustable gastric band Laparoscopic gastric banding is a purely restrictive procedure that compartmentalizes the upper stomach by placing a tight, adjustable prosthetic band around the entrance to the stomach. The gastric band consists of a soft, locking silicone ring connected to an infusion port placed in the subcutaneous tissue. The port may be accessed with relative ease by a syringe and needle. Injection of saline into the port leads to reduction in the band diameter, resulting in an increased degree of restriction. Reproduced with permission from: Jones DB, Schneider BE, Olbers T. Atlas of Metabolic and Weight Loss Surgery. Cine-Med, North Woodbury, Connecticut 2010. Copyright © 2010 Cine-Med.