Vertical Sleeve Gastrectomy Forum (VSG)

Vertical Sleeve Gastrectomy (VSG) - Frequently Asked Questions

How big will my stomach be after surgery?
The size of your stomach will vary depending on the surgeon. All surgeons use a tube to guide them when stapling the stomach. This tube size can vary from as small as 32 French Bougie (1-2 ounces) to as large as 64 French Bougie (6-8 ounces). This is a very important question to ask when considering this surgery, since those patients with larger pouches may have less weight loss.

Is removing the stomach safe?
This type of stomach removal has been performed with the Duodenal Switch procedure since the mid 1980?s.  It does involve stapling, just like in the gastric bypass and has similar risks. Interestingly, patients do not ever return asking for their stomach back but many do wonder if it is possible to reduce the size of it again. 

Will I need to take vitamins?
Vitamin deficiencies are rare with this procedure because there is no intestinal bypass. However, the procedure is very restrictive so most surgeons recommend that patients take a multivitamin, calcium and possibly a B12 vitamin after surgery.

Will I regain weight?
All patients undergoing weight loss surgery are at risk for weight regain. None of the operations can prevent this. Those patients who maintain good dietary habits and exercise patterns are more likely to keep the weight off than those who do not exercise and who snack frequently.

What will my diet be like after surgery?
The diet will progress over the first year. It usually starts with 2-4 weeks of liquid protein drinks and water.  Patients gradually progress to thicker food items and by two months are able to eat seafood, eggs, cheese and other regular foods. The diet generally recommended is low calorie (500 per day), high protein (70gm per day), low fat (30 gm per day) and low carbohydrates (40 gm per day). The calorie intake increases over the first year and by 12 months many patients have achieved their goal weight and consume between 900 and 1500 calories per day. This final calorie intake depends on level of activity, age and gender(men can usually consume more calories and maintain their weight).

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This information has been provided courtesy of Laparoscopic Associates of San Francisco (LAPSF). Please visit the Laparoscopic Associates of San Francisco.