Revision Bariatric Surgery in Turkey
Gastric sleeve revision, including sleeve-to-bypass conversion, gastric band to sleeve conversion and gastric bypass revision with Op. Dr. Mesut Çaynak in Antalya or Istanbul. Revision cases are assessed from your records, and the surgeon decides what is possible. A coordinator stays with you after you fly home.
Surgery at a JCI-accredited hospital- 800+ revision surgeries
- Sleeve-to-bypass, band-to-sleeve and bypass revision
- Records reviewed before acceptance
The surgeon's team reviews your previous surgery report, height and weight. No obligation. SRC accreditation can be verified on SRC's site.
The surgeon's team reviews your previous surgery report, height and weight. No obligation. SRC accreditation can be verified on SRC's site.
As featured in
Coverage of Dr. Çaynak's work.
Credentials
Accreditation you can check yourself
Surgical Review Corporation (SRC) certificate for Op. Dr. Mesut Çaynak, accredited August 2021–2027. Tap the certificate to enlarge it.
Source for “one of only 7 SRC-listed bariatric surgeons in Turkey”: SRC accredited providers list.
Gastric sleeve revision: who it is for
Revision surgery is for people whose earlier weight-loss operation needs to be corrected or converted. The reasons differ from person to person, and only a review of your records shows which one applies to you.
- Weight regain. Weight has come back after a gastric sleeve or another operation, and the earlier result has not held.
- Weight loss that was lower than expected. The operation did not produce the change you and your surgeon were aiming for.
- Reflux after a sleeve. NIDDK lists acid reflux as a risk of gastric sleeve, so reflux that persists after a sleeve is something surgeons look at closely when they consider a conversion.
- Problems with a gastric band. Ongoing difficulties with the band, or a band that no longer works for you, can lead to a conversion.
Sometimes a revision is not the right step. Your surgeon says so after reading your report. Whether a conversion is possible depends on your case, your earlier operation and your current health.
Key facts
Revision bariatric surgery in Turkey is performed by Op. Dr. Mesut Çaynak, who has done more than 800 revision operations. The conversions he performs are gastric sleeve to gastric bypass and gastric band to gastric sleeve, and he also revises earlier gastric bypass operations. He asks for your previous surgery report first, and decides after reviewing it.
- Conversions
- Gastric sleeve to gastric bypass; gastric band to gastric sleeve; gastric bypass revision
- Before acceptance
- Previous surgery report reviewed by the surgeon
- Surgeon
- Op. Dr. Mesut Çaynak, SRC-accredited Master Surgeon
- Hospital
- ASV Yaşam Hospital, Antalya (JCI-accredited)
- Price
- No fixed price; written plan after records review
- Aftercare
- 12 months remote follow-up
Sleeve to bypass, band to sleeve and gastric bypass revision
Dr. Çaynak performs two conversions and also revises earlier gastric bypass operations.
Gastric sleeve to gastric bypass. The stomach was reduced in a sleeve operation. In the conversion, the operation is changed to a gastric bypass. Surgeons often consider this when weight has returned or reflux persists after a sleeve. The surgeon decides whether it fits your case.
Gastric band to gastric sleeve. The band is removed and the operation is converted to a sleeve. This is considered when the band is causing problems or has not given the result you hoped for.
Gastric bypass revision. This is a revision of an earlier gastric bypass. It is considered when weight has come back, or when there are problems with the pouch or the connection (anastomosis) made in the first operation. The surgeon decides from your records whether a revision fits your case.
If a case is not something the surgeon performs, you are told that after the review.
Not every revision is the right step.
The surgeon decides after reading your records, and a decision not to operate is a possible outcome.
Your surgeon: Op. Dr. Mesut Çaynak
He has been an SRC-accredited Master Surgeon in Metabolic & Bariatric Surgery since 2021, according to the Surgical Review Corporation (SRC). He has performed more than 3,800 obesity surgery procedures over the past decade. He has also performed more than 800 revision operations.
He works with a team that includes a gastroenterological surgeon and two dietitians (Prof. Dr. İsmail Gömceli; Dt. Ece Eyiler and Dt. Melis Çivril).
Surgery takes place at ASV Yaşam Hospital in Antalya, which is accredited by Joint Commission International (JCI). Dr. Çaynak also operates in Istanbul.
His SRC certificate is shown in the credentials section above. Verify on SRC
Weight regain after gastric sleeve: sleeve, bypass or conversion
Gastric sleeve in Turkey
The most common procedure. Part of the stomach is removed, which reduces capacity and hunger hormones.
See gastric sleeve →Gastric bypass in Turkey
The stomach is made smaller and the intestine rerouted. Often considered when weight has returned or reflux persists after a sleeve.
See gastric bypass →Sleeve vs bypass: which one?
A side-by-side comparison of the two most common procedures.
Compare →Revision bariatric surgery in Turkey at a JCI-accredited hospital
Surgery takes place at ASV Yaşam Hospital in Antalya, a JCI-accredited hospital. JCI accreditation belongs to the hospital, not to the surgeon.
- HOSPITAL
- ASV Yaşam Hospital, Antalya (JCI-accredited)
- METHOD
- Set by your surgeon for your case
- FLY-HOME CLEARANCE
- Surgeon decides
Revision bariatric surgery abroad: Antalya or Istanbul
Dr. Çaynak operates at ASV Yaşam Hospital in Antalya, on Turkey's Mediterranean coast, and he can also operate in Istanbul. Your coordinator confirms the city and hospital when you get your quote. Antalya is usually reached by connecting through Istanbul. Turkey is 7 hours ahead of New York in summer and 8 hours ahead in winter, so we schedule calls with that in mind.
ASV Yaşam Hospital: Gebizli Mah. 1116 Sk No:4, Muratpaşa/Antalya, Turkey (listed by the Antalya Provincial Health Directorate).
Recovery and preparation. Preparation starts weeks ahead: the surgeon's team tells you what to do before the operation, and what to expect after.
Revision from your report to a written plan
STEP 1 · YOU ARE HERE
Send your records. Your previous surgery report, current weight and height. Current scans or lab results help if you have them.
STEP 2
The surgeon reviews them. Dr. Çaynak asks for the earlier operation's report before he accepts a revision case, and decides after he has read it. A physician, not a salesperson, makes that decision.
STEP 3
Online consultation. If your case can be considered, you speak with the surgeon's team online and ask your questions.
STEP 4
Written plan within 24 hours. You receive the plan in writing after the review. There is no fixed price for revision: it depends on your case, so the plan is written for you.
STEP 5
Dates and travel. We book the hospital stay, hotel and transfers; you book flights.
STEP 6
Surgery, then follow-up at home. 12 months of remote check-ins with a dietitian.
How to prepare for revision surgery
Dr. Çaynak walks through what happens before and after a weight-loss operation, including the pre-operative tests and the steps your team asks you to take in advance. For a revision, start by gathering your previous surgery report, current weight and height.
Turkish audio · English subtitles
Revision bariatric surgery abroad: 12 months of follow-up
- Your written plan lists exactly what is included. For weight-loss surgery at our contracted hospital, the package covers pre-operative tests, surgery, anesthesia, a hospital stay, hotel accommodation, dietitian visits, first-month medications, compression stockings and airport transfers. It does not cover flights.
- After you fly home, you get 12 months of remote follow-up with a dietitian.
- Weight-loss surgery means lifelong changes: a new way of eating and vitamin supplements. Your dietitian and surgeon explain this before you decide.
- If you have severe pain, fever, vomiting you can't stop or trouble breathing after you return, go to your nearest emergency room and tell them about your surgery. Don't wait for an online reply.
- The surgeon sets the stay after reviewing your records, and decides when you are cleared to fly.
Revision bariatric surgery in Turkey: common questions
Do you accept revision cases?
It depends on the case. Dr. Çaynak asks for the report of your previous operation before he accepts a revision, and he decides after reviewing it. The conversions he performs are gastric sleeve to gastric bypass and gastric band to gastric sleeve, and he also revises earlier gastric bypass operations. If your case is not suitable, you are told after the review.
Do you revise a previous gastric bypass?
Yes. Dr. Çaynak revises earlier gastric bypass operations. People ask about this most often because of weight regain after gastric bypass, or because of problems with the pouch or the connection from the first operation. He asks for the report of your bypass first and decides after reviewing your records. If a revision is not suitable, you are told after the review.
Which documents do I need to send?
Start with the report of your previous surgery, your current weight and your height. Recent scans, endoscopy results or lab tests help if you have them, and the surgeon's team tells you if anything else is needed. You do not need to collect everything before you write to us.
Why would someone convert a gastric sleeve to a gastric bypass?
Two reasons come up often: weight that has come back after a sleeve, and reflux that continues. NIDDK lists acid reflux as a risk of gastric sleeve. A bypass changes how the stomach and intestine are arranged, so the surgeon may consider it. Whether it fits you depends on your records and health.
Why would someone convert a gastric band to a gastric sleeve?
Usually because the band is causing problems or has not given the result you hoped for. The band is removed and the operation is converted to a sleeve. The surgeon decides whether this is suitable after reading your report and reviewing your current health.
I have regained weight after a gastric sleeve. Can surgery help?
Sometimes, but not always. Weight regain has different causes. The surgeon looks at your earlier operation and your current health, and tells you honestly whether a conversion is appropriate. No operation guarantees a result.
How long do I need to stay in Turkey, and when can I fly?
The surgeon sets the stay after reviewing your records. Most US itineraries connect through Istanbul, so flight time depends on your departure city. After surgery the surgeon decides when you are cleared to fly.
What are the risks of revision surgery?
Every surgery carries risks, including bleeding, infection and blood clots. The surgeon reviews your records before accepting a revision case. Outcomes depend on the assessment, the surgeon's experience and follow-up care. We cannot promise results.
Why is there no fixed price for revision surgery?
Every revision is different: it depends on your earlier operation, your current health and what the surgeon recommends. So the price is written for you after the surgeon reviews your records. Your written plan lists what is included, and flights are not included.
More information
Medically reviewed by Op. Dr. Mesut Çaynak, General Surgeon, Metabolic & Bariatric Surgery. Last reviewed October 2026
Send your records for review
Share your previous surgery report, current weight and height. Dr. Çaynak's team reviews them and replies with a written plan within 24 hours.
A physician reviews your case. No obligation.
Send your previous surgery report, current weight and height. The surgeon reviews them and you get a written plan within 24 hours.
Information on this page is general and is not medical advice. Eligibility is decided by the surgeon after reviewing your records. See our editorial policy and medical disclaimer.