Dr. Reza Keshavarzi, a fellowship-trained bariatric surgeon who performs gastric bypass himself, starts every revision by finding out what changed before recommending a second operation, a medical plan or both.

A gastric bypass revision is a follow-up procedure that changes an existing Roux-en-Y bypass. Over the years, the small stomach pouch or the connection between the pouch and the intestine, called the outlet, can stretch. Meals get larger, fullness fades sooner and weight can return. A revision tightens, resizes or reroutes what changed so the bypass works the way it was designed to.
Surgically reducing a pouch or connection that has stretched, so smaller meals bring fullness again.
Changing how much intestine is bypassed to lower the calories absorbed. It suits a smaller group of patients.
Stitches placed through an endoscope to narrow a widened outlet without incisions, when the findings allow it.
GLP-1 medication, nutrition coaching and close follow-up, on their own or alongside a procedure.
Which approach fits depends on your anatomy, your history and your goals. Dr. K explains every option that applies to you, including when a second operation is not the right answer.
Regain after a bypass happens to many patients, and it is not a personal failure. What matters is whether the anatomy changed, habits drifted, or both, because that answer decides the treatment.
Many patients who look into revision had their first operation years ago, sometimes with a surgeon they no longer see. Dr. K starts from your original operative history and today's findings rather than assumptions.
Every revision begins with an evaluation. Nothing is scheduled until you and Dr. K agree on what the findings show.
He reviews your original surgery, weight history, eating patterns and current health, then tells you plainly what he thinks is going on.
An upper endoscopy shows the size of your pouch and outlet. Dr. K can perform it himself, and medical clearances confirm you are ready.
You leave knowing which option fits and why, whether that is a revision, a medical plan or a combination of the two.
A pre-surgery diet is required, and weight loss injections are stopped at least two weeks before surgery.
After our laparoscopic procedures, patients typically return to work in 4 to 7 days and avoid lifting more than 20 lbs at first. Your timeline depends on the exact revision.
Concierge follow-up, nutrition coaching and psychological support continue after surgery, because keeping the weight off is the real goal.
Dr. K's view is that the biggest gains come from using the right treatment, or the right combination, for each patient. For bypass patients with regain, that plan is built from four parts.

Dr. K performs gastric bypass, gastric sleeve, endoscopic sleeve gastroplasty and ORBERA balloon procedures, and he oversees our medical weight loss program. That range lets him weigh every option against your anatomy rather than default to one.
He completed his surgical residency at Jackson Memorial Hospital and a fellowship in laparoscopic, bariatric and robotic surgery at Jackson South Medical Center, after earning his medical degree with High Distinction from the University of Kentucky College of Medicine.
★★★★★ 4.9 average from 80 Google reviews
3 years ago I had my gastric sleeve and since then he has continue with his care and professionalism, guiding me so that the surgery continues to be a success.
Glorivee G.Gastric sleeve patient
He has been there the whole process, provided his cell phone to make sure he could be reached at all hours.
YesiHiatal hernia repair and gastric sleeve patient
The doctor was very straightforward and honest and extremely professional.
Pat C.Patient
Revision pricing depends on what your endoscopy shows and which approach you and Dr. K choose, so you receive an exact quote after your evaluation rather than a guess. Questions about insurance are answered individually at your consultation.
Patients from Hollywood reach our South Miami office by I-95 or Florida's Turnpike. Your evaluation, endoscopy planning and follow-up visits are all coordinated by the same team.
Yes. Gastric bypass remains a standard bariatric operation, and Dr. K performs it alongside the gastric sleeve, endoscopic sleeve gastroplasty and the ORBERA balloon. For patients who already have a bypass, a revision aims to restore how the original operation works.
Many patients keep most of the weight off, while others see weight return as the pouch or outlet stretches and habits shift. Regular follow-up catches this early. When regain has started, an evaluation shows whether a revision, medication or a nutrition reset is the right response.
The cost depends on the approach your evaluation points to, so you receive an exact quote once Dr. K has reviewed your endoscopy and history. Financing through Cherry includes 24 months at 0% interest and payments as low as $320 a month.
Yes. An upper endoscopy, or EGD, is required before surgery because it shows the size of the pouch and the outlet. Dr. K can perform it himself or it can be done elsewhere, and medical clearances are completed at the same stage.
For some patients, yes. GLP-1 medication helps control appetite and can be used on its own or alongside a revision. Dr. K oversees our medical weight loss program, so both paths are discussed at the same visit.
It depends on what is revised. After our laparoscopic procedures, patients typically return to work in 4 to 7 days and avoid lifting more than 20 lbs at first. Dr. K gives you a timeline for your specific procedure.
Our office is at 7330 SW 62nd Pl, Suite 210, in South Miami, open Monday to Friday from 9:00am to 4:00pm. Patients from Hollywood usually reach us by I-95 or Florida's Turnpike.
An evaluation with Dr. K gives you a clear answer on whether a revision, medication or both make sense for you.