What is a Sleeve Gastrectomy?


What is a Sleeve Gastrectomy?


Women sizing her waist with measuring tape.

During the last century, surgical weight-loss procedures have advanced significantly as the understanding of gastrointestinal systems and bariatric treatments have progressed. The leading bariatric procedure since the 1960s has been gastric bypass, but a newer, less invasive procedure is gaining traction as an equally effective method of surgery-induced weight loss.

Sleeve Gastrectomy, also known as Gastric Sleeve Surgery, has seen a boom in acceptance from insurance companies, who are typically hesitant of new procedures, since 2010. However, this surprising change in pace from insurance companies does not come as a surprise to the surgeons conducting the procedure. Originally, the procedure is a part of another insurance-covered weight-loss procedure called duodenal switch surgery. Due to the length of the surgery, surgeons would divide the surgery into two stages, the first being the reduction of the stomach and the second being the bypassing of some of the intestines a year later. Reduction of the stomach entails removing the lower curvature of the stomach, which reduces the volume to about 15% of its original size and results in a sleeve structure remaining. The effectiveness of the first stage commonly resulted in surgeons not performing the second stage, and eventually, insurance companies caught on to the first stage’s effectiveness and reduced complications and started accepting it as a full procedure.

Sleeve Gastrectomy Compared to Gastric Bypass

There are many benefits and potential side effects to weigh for both gastric bypass and gastric sleeves. If you are considering either, the best way to learn which procedure is best for you is to consult your primary care provider and a bariatric specialist. Some of the differences are compared below, however.


Gastric Sleeve

Gastric Bypass

Weight Loss Method


Restriction and Malabsorption

Average Surgery Duration (in minutes)



Average Projected Weight Loss (%)



Complication Rate (%)



*Park JY, Kim YJ. Laparoscopic gastric bypass vs. sleeve gastrectomy in obese Korean patients. World Journal of Gastroenterology. 2015;21(44):12612-12619. doi:10.3748/wjg.v21.i44.12612.

**Lager CJ, Esfandiari NH, Subauste AR, et al. Roux-En-Y Gastric Bypass Vs. Sleeve Gastrectomy: Balancing the Risks of Surgery with the Benefits of Weight Loss. Obesity Surgery. 2017;27(1):154-161. doi:10.1007/s11695-016-2265-2.

These numbers should help give a very broad idea of the difference in results for both of these popular procedures, nonetheless, if you are looking into surgical weight loss please consult your doctor or contact our Bariatric Team for individualized, informed opinions on your bariatric health.

02/07/2018 3:49 PM |Add a comment |Comments (5)
Thank you so much for this Amazing information with us. keep up and good work....

thanks for sharing about gastrectomy... everybody should know about this..

Dr. Kuiper did my surgery 9/6/17 and was the best decision ever. I have so much energy, lowered my blood pressure, have more mobility, I can play with my grandchildren. I've lost 96lbs so far in less than 10 months and am only 4lbs from my goal. So happy this surgery was available

Sandy Moyer | sandy.moyer713@gmail.com | 07/03/2018 7:34 PM
Dr Severidt, Stephanie and the nurses and crew are amazing! I was sleeved 4/15/16 Hw350# Sw300# Cw182# and have been maintaining my weight for over a year. The surgery is a great tool to help you lose weight but you have to do your part and eat right taking your vitamins and exercising and you’ll have amazing results

Ted Wilson | etw3@mediacombb.net | 07/03/2018 4:24 PM
Surgical Associates and Dr. Coster are the best. Had my sleeve in June of 2015 and had amazing results and have maintained my weight for the last two years. Lost almost 180 lbs. they rock!!

Lori Bonine | loribonine@live.com | 02/26/2018 3:15 PM
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