Most bariatric surgery statistics is showing that patients are steering away from gastric banding surgery, and opting to choose gastric sleeve surgery and gastric bypass surgery. Every year since 2005 statistics shows that gastric sleeve and gastric bypass are being out-chosen for bariatric surgery. Right now gastric bypass accounts for 80% of all the bariatric surgeries in the United States.
The notable difference between these two operations is that gastric bypass provides more expected weight-loss than the gastric sleeve. A Rand Corporation study found that patients lose on average 20 pounds more with Roux-en-Y gastric bypass, than with vertical sleeve gastrectomy.
Gastric Sleeve versus Gastric Bypass: Table Comparison
RNY Gastric Bypass
|Method of Weight Loss||Restrictive ||Restrictive & Malabsorptive |
|Stomach Alterations||Stomach size reduced ||New Stomach is Created: Stoma. |
|Changes to Intestine||No Change||Cut and Bypassed |
|Operating Time|| || |
|Average Hospital Stay|| || |
|Time off Work|| || |
|Recovery Time|| || |
|Pros:|| || |
|Disadvantages|| || |
|Surgery Description||Long narrow vertical pouch (about 2-3 oz or 60-100cc). Same shape as the duodenal switch pouch but smaller. No intestinal bypass. The VG significantly restricts the volume of food that can be eaten. There is a no malabsorption of nutrients or dumping.||Small pouch (about 1/20-30cc) Pouch is connected to the small intestine where food and digestive juices are separated for the first 3 to 5 feet. The RNY significantly restricts the volume of food that can be eaten.|
|Realistic Expectations|| || |
|Post Surgery Dietary Info:|| || |
|Candidate Efficacy|| || |
Gastric Sleeve Surgery
Gastric Sleeve Surgery is a permanent weight loss surgery that reduces the size of the stomach by as much as 85%. This restriction helps in two ways: first, the smaller stomach capacity contributes to making patients feel fuller faster – therefore reducing caloric intake. Secondly, the hunger hormone is reduced, allowing patients to be free of hunger desires.
Gastric Bypass Surgery
Gastric Bypass Surgery is a very powerful weight loss surgery that uses two surgical methods to achieve big weight loss for patients. Gastric Bypass uses restriction and malabsorption to reduce caloric intake severely. Gastric bypass is intended for patients who are suffering from co-morbidities, along with a very debilitating obesity.