Is it possible to have gastric bypass after having a nissen surgery for gerd?

Yes. It is possible but it may not be possible to do laparoscopically due to prior surgery.
Yes. A bit harder. Gastric bypass remains the best operation for patients with a prior nissen (a wrapping of stomach to treat acid reflux). The bypass instantly prevents further acid and bile from going up the esophagus. You would want to go to an experienced surgeon who has done plenty.
Yes. The surgeon can remove the nissen wrap, and then perform the gastric bypass. Gerd should not return as the gastric bypsss usually helps gerd.

Related Questions

What are the risk having gastric bypass surgery after having a nissen for gerd?

Bypass & Nissen . Doing a bypass after having a nissen is very difficult and considered revisional surgery. Lots of scar tissue from the nissen and your wrap must be undone. Risks of complications like a leak are much higher. Doesn't mean you shouldn't have a bypass. I have done many of these. You just need to go to an experienced surgeon that does revisional bypass surgery. Read more...

I had a nissen for GERD 2 yrs ago. It has failed and esophagus shortened and ulceration. Dr advises gastric bypass. I'm very concerned. Bmi is 23.

Gastric bypass. Good idea if your bmi was 35 or above. Gastric bypass is gold standard for reflux disease. With a bmi of 23 worth seeing a specialist for possible revision of the nissen. Read more...
Really? Nissan repair is highly effective for gerd. A gastric bypass would never be recommended for someone with a bmi of 23. See a gastric specialist for options that aren't surgical. Read more...
Serious Situation! A nissen fundoplication should effectively treat gerd. By the time you have surgery, you have failed multiple medical therapies. Because your weight is normal, you must be very aggressive to avoid smoking, alcohol, caffeine, and any esophagus or gastric irritants that cause erosions or ulcerations. You may well need high dose acid-reducing meds along with another surgery. Not fun, but necessary! Read more...