Not reversible, as part of stomach has been removed, and revision requires major surgery. No foreign body remaining inside the body. Reversal can be performed, but requires extensive surgery. Risk of same nutritional deficiencies as with bypass, but risks not as great. Iron, calcium and some vitamins not as easily absorbed can lead to nutritional deficiencies if not supplemented but these are generally avoidable and not common. Lowest longterm complication rate of any procedure, however.įewer risks associated with the surgery, itself, though they may occur even years later, and in many series the cumulative risk of complications may be higher than with the other procedures. Riskier surgical procedure complications may be catastrophic, but may be easier in high risk patient than bypass. Riskier surgical procedure complications may be catastrophic. Slower improvement in diabetes and generally not as reliable as with bypass. Resolution of diabetes between that of Bypass and Band. Quicker and most reliable resolution or improvement in diabetes. Weight loss slower but may continue for 3 or even more years postoperatively. Most weight loss occurs within first year after surgery. Weight loss probably comparable, though perhaps not quite as good as with gastric bypass. Weight loss generally very good, and is complete within 12-18 months of surgery. Appears to work by inducing a feeling of satiety (fullness). A thin needle can be introduced into the port and used to inject fluid into the band, or deflate it, making the opening from the pouch larger, or smaller, as needed until a sense of fullness is appreciated. This is attached by a long, slender tube to a small port which is buried beneath the skin. Operation involves placement of an inflatable silicone band around the upper stomach. Operation probably works by a combination of restriction of how much patients can eat comfortably and by producing hormonal changes that may blunt hunger, as well as inducing a feeling of satiety (fullness). The stomach volume, therefore is smaller, and food empties into the small intestine more quickly. Stomach is divided to make a long, narrow tube about the size of a slender banana. Food now bypasses the main body of the stomach and goes directly into small intestine. Operation involves stapling to divide the stomach and small intestine, and attachment of the small intestine to a very small upper gastric pouch. This operation has been replaced by the Sleeve and we no longer perform primary lap band surgery. Our program consists of surgeons, nurses, anesthesiologists, psychologists and psychiatrists, dietitians, physical therapists, insurance authorization specialists, and the many patients who participate in our support groups. He is a member of the American Society of Metabolic and Bariatric Surgery, and the Surgical Society of the Alimentary Tract. In the mid-1990s he was one of the first surgeons in the US to perform laparoscopic weight loss surgery. He started the weight loss surgery program at Stanford in 1991 and directed the program until 2001, when he left Stanford to start the program at Community Hospital. Mark Vierra, MD has performed weight loss surgery for over 25 years. He is a member of the American Society of Metabolic and Bariatric Surgery, and he is the Director of the Bariatric Surgery program at Community Hospital of the Monterey Peninsula. is a graduate of University of California, Irvine and Northeast Ohio Medical University and completed his residency in General Surgery at Santa Barbara Cottage Hospital 2013.įollowing residency he completed a fellowship in Minimally Invasive / Bariatric Surgery at University of California, San Francisco-Fresno and is Board Certified in General Surgery. As of January 2015 we have performed >2000 weight loss operations at Community Hospital and have some of the best safety experience anywhere. Chang, with the help of the dedicated PA, Deirdre Hamilton, perform gastric bypass, sleeve gastrectomy, and laparoscopic adjustable band surgery and provide continuous coverage for these patients within our group. Vierra is among the most experienced bariatric surgeons in the US.ĭr. With over 20 years of experience in bariatric surgery, Dr. Mark Vierra, MD, FACS, who started the Obesity Surgery program at Stanford in 1991 and directed the program there until he moved to Monterey in September of 2001. Mark Vierra are all recognized as being a part of the Bariatric Surgery Center of Excellence in 2006 - one of the first on the West Coast. Weight Loss Surgery at Community Hospital Monterey PeninsulaĬommunity Hospital of the Monterey Peninsula, along with Monterey County Surgical Associates and Dr.
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