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UPMC Chautauqua Bariatric Center Header

Bariatric Center
UPMC Chautauqua
31 Sherman Street Building, Suite 2500
(directly behind
UPMC Chautauqua)
Jamestown, NY 14701

(716) 485-7870
Fax: (716) 485-7878

7:30 a.m. – 4:00 p.m.

Our Bariatric Physician

Galo Grijalva, MD FACS
Board-certified Surgeon

With the sleeve gastrectomy, your stomach will be made smaller by stapling and dividing the majority of your stomach and removing it from your body. The remaining stomach is shaped like a long narrow tube with a small reservoir for food at the end of the tube. This reservoir only holds about 3 ounces of food, meaning you will feel full more quickly and therefore lose weight.

The sleeve gastrectomy retains the normal valve (pylorus) that allows food to exit your stomach. Because of this, the stomach is able to move food into the small intestines at a normal rate, which avoids the dumping syndrome that is common with the gastric bypass procedure. Additionally, the acids and digestive enzymes that help absorb vitamins and minerals are not bypassed during a sleeve gastrectomy, which places you at lower risk for vitamin deficiencies. However, since your stomach is smaller, it will absorb these substances less efficiently, so you will still need to take vitamin replacements.