Outpatient weight loss surgery: initiating a gastric bypass and gastric banding ambulatory weight loss surgery center.

Background: Ambulatory surgery or outpatient surgery is becoming increasingly common. In 2002, 63% of all operations performed in the United States were ambulatory procedures. Bariatric procedures performed in the United States have increased from 16,200 in 1992 to approximately 205,000 in 2007.