Gastric reduction surgery, medically known as sleeve gastrectomy, is a surgical procedure performed to reduce the volume of the stomach. During the operation, a large portion of the stomach is removed, leaving behind a narrow, tube-shaped stomach. This allows patients to feel full more quickly. Gastric reduction surgery aims to prevent obesity-related health problems.

Although there is no simple yes-or-no answer to the question, “Is gastric reduction surgery risky?”, like all surgical procedures, it does carry potential risks and side effects (complications). However, with modern surgical techniques, experience, care, and attention, the level of risk can be reduced and effectively managed. Worldwide, bariatric surgery is considered a safe method with a low mortality rate when performed in experienced centers.

When looking at the risks of gastric reduction surgery, also known as sleeve gastrectomy, they can be grouped under the following headings: serious side effect rate, mild/moderate side effect rate, and uncomplicated recovery.

What Is Gastric Reduction Surgery?

Gastric reduction surgery is a procedure in which a large portion of the stomach is removed to make it smaller. Also known as sleeve gastrectomy, it is one of the most preferred minimally invasive surgical methods for weight loss. With this method, approximately 85% of the stomach is removed using a closed (laparoscopic) surgical technique, helping the person lose weight in a balanced and healthy way. Gastric reduction surgery not only helps patients get rid of excess weight, but also helps eliminate obesity-related comorbidities such as diabetes, high blood pressure, and similar conditions. Significant improvements are especially observed in cardiovascular health.

Serious Side Effect (Complication) Rate

The rate of serious complications after sleeve gastrectomy is generally around 1–2%. This category mostly includes leaks, severe bleeding, clots (embolism), heart problems, and conditions requiring reoperation. With the right surgical team and proper equipment, this risk can even be reduced to below 1%.

Mild/Moderate Side Effect Rate (Complication)

The rate of mild to moderate complications after surgery is approximately 3–4%. This category includes issues that are not life-threatening but may slightly slow down the recovery process. These may include mild infections, blood pressure fluctuations, nausea, hair loss related to dietary changes, and other temporary complaints.

Uncomplicated Recovery

The vast majority of patients are able to return to their daily activities within a few days after the operation without experiencing any serious problems.

What Causes the Rate of Serious Side Effects to Increase?

Leak (Staple Line Leak)

This is the most serious type of complication seen in sleeve gastrectomy. During surgery, a 25–30 cm staple line is created along the left side of the stomach in order to reduce it and reshape it into a tube. Any tiny gaps that may form along this line can lead to leakage. If a leak occurs:

• Stomach contents may leak into the abdominal cavity.

• This can cause infection, intra-abdominal inflammation (peritonitis), fever, pain, and serious health problems.

In the medical literature, the leak rate is generally reported to be around 1–2%. If detected early, it can be controlled with surgical intervention and antibiotic treatment. However, if recognized late, it can increase the risk to life.

What Factors Reduce the Risk of Gastric Reduction Surgery?

• The surgeon’s experience and number of cases performed

• Hospital equipment (modern medical technology) and a multidisciplinary approach: a treatment approach carried out through the joint work of physicians and specialists from many different disciplines

• Preoperative evaluation (blood tests, cardiac assessment)

• Regular postoperative follow-up and vitamin supplementation

• The quality of the materials used (using globally accepted, reliable brands of stapling systems minimizes the margin of error)

• Early postoperative discipline (following a liquid and pureed diet, getting up and walking a few hours after surgery to minimize the risk of blood clots/embolism)

In Which Cases and for Whom Is Gastric Reduction Surgery Performed?

Gastric reduction surgery is generally performed on individuals with a body mass index (BMI) of 40 or above, meaning those diagnosed with morbid obesity (a form of obesity that causes serious health problems due to excessive weight and significantly reduces quality of life). In addition, it may also be considered an appropriate treatment option for patients with a BMI of 35 or above who have serious obesity-related health problems such as type 2 diabetes, hypertension, sleep apnea, or fatty liver disease. Sleeve gastrectomy becomes an option when sufficient results cannot be achieved through methods such as diet and exercise.

Who Is Not Eligible for Gastric Reduction Surgery?

Meeting the general criteria for gastric reduction surgery alone is not sufficient; there are also individuals for whom surgery is not appropriate even if they meet these criteria. These include:

• Those with active alcohol or substance addiction

• Patients who are unable to make lifestyle changes after surgery

• Those with serious and uncontrolled systemic diseases (cancer, lung disease, heart failure, etc.)

• Those with severe psychiatric disorders

Things to Consider Before Gastric Reduction Surgery

Just as important as the postoperative period, the preoperative preparation process also increases the success rate of the operation. Paying attention to the necessary points before surgery both reduces risk and speeds up recovery.

The following should be considered before sleeve gastrectomy:

• Detailed medical evaluation (blood tests, ECG, chest X-ray, endoscopy)

• Weight control (a preoperative diet may be applied to reduce liver size and lower surgical risk)

• Medication adjustment (blood-thinning medications should be stopped a certain period before surgery)

• Psychological preparation (support may be needed to adapt to lifestyle changes after surgery)

• Smoking and alcohol (since they slow wound healing and increase the risk of leaks, smoking should be stopped at least 4–6 weeks beforehand, and alcohol should also be discontinued)

The Best Doctor for Gastric Reduction Surgery in Turkey

The best doctor performing gastric reduction surgery in Turkey is Op. Dr. Serkan Tüğen. With more than 30 years of extensive experience, numerous surgeries that have made his name widely known, and many surgical awards, Op. Dr. Serkan Tüğen has been selected as the best doctor performing gastric reduction surgery in both Turkey and Izmir.

The Best Clinic for Gastric Reduction Surgery in Turkey

The best clinic performing gastric reduction surgery in Turkey is Healthylife Clinic Izmir. With more than 30 years of extensive experience, countless surgeries that have made his name widely known, and many surgical awards, Op. Dr. Serkan Tüğen has been selected as the best doctor performing gastric reduction surgery in Turkey and Izmir. Founded by him to provide the best treatment for gastric reduction and other weight-loss methods, Healthylife Clinics Izmir is among the best clinics in Turkey and continues to provide uninterrupted service to its patients.

How Long Does Gastric Reduction Surgery Take?

Although gastric reduction surgery may vary from person to person, it takes approximately 45 to 60 minutes on average. If the preparation and waking-up/recovery period are included, the total duration is around 90 to 120 minutes.

Conclusion

In conclusion, sleeve gastrectomy is a safe method when applied with proper patient selection and an experienced surgical team. However, since it carries risks like any surgical procedure, the decision process must absolutely be made with the evaluation of a specialist physician. Since long-term conditions such as vitamin deficiencies, reflux, and weight regain may occur, postoperative follow-up and adaptation to lifestyle changes are extremely important.

Frequently Asked Questions

1. Is gastric reduction (sleeve gastrectomy) really risky?

Like any surgical procedure, it carries risks; however, with modern techniques, the rate of serious complications in sleeve gastrectomy is only around 1–2%. In fully equipped clinics and in the hands of experienced surgeons such as Op. Dr. Serkan Tüğen, this risk can be reduced to below 1%.

2. What is the risk of leakage after surgery, and how can it be prevented?

The leakage rate in the global medical literature is 1–2%. To minimize this risk, internationally recognized, high-quality stapling systems should be used during surgery, and the surgeon should have a high level of technical skill. Cases detected early can usually be controlled easily with antibiotics or minor interventions.

3. Who is the best doctor for gastric reduction surgery in Turkey?

With more than 30 years of experience, numerous successful operations, and the surgical awards he has received, Op. Dr. Serkan Tüğen is regarded as one of the most reliable and best names in gastric reduction surgery in Turkey and Izmir.

4. Who can undergo gastric reduction surgery? (BMI Criteria)

People with a BMI of 40 and above, or those with a BMI of 35 who also have additional diseases such as diabetes, hypertension, or sleep apnea, are suitable candidates for this operation. It is one of the most effective solutions for patients who have not achieved results through diet and exercise.

5. How many days after surgery can I return to daily life?

The vast majority of patients can return to normal daily activities just a few days after the operation. With the rapid recovery protocols applied in multidisciplinary centers such as Healthylife Clinic, the healing process is quite comfortable.

6. Why should I stop smoking and alcohol before gastric reduction surgery?

Smoking and alcohol slow tissue healing and directly increase the risk of leakage. For a safe operation, it is critically important to stop smoking at least 4–6 weeks in advance.

7. What distinguishes Healthylife Clinic Izmir from other clinics?

Founded by Op. Dr. Serkan Tüğen, Healthylife Clinic combines 30 years of surgical experience with a multidisciplinary approach. It is among the centers providing the best services in Turkey not only for surgery itself, but also for postoperative nutrition and follow-up care.

8. Will I gain weight again after surgery?

Sleeve gastrectomy offers a long-term solution; however, for lasting success, the patient must change their lifestyle and follow the recommended diet. Regular follow-up helps eliminate the risk of weight regain.

9. Is hair loss normal after surgery?

Hair loss, which is considered among the mild to moderate complications, is usually temporary. It may occur due to postoperative dietary changes and vitamin deficiencies; this can be easily managed with regular vitamin supplementation.

10. In which situations is gastric reduction surgery not performed?

This operation is not performed on those with active alcohol or substance addiction, those who do not accept postoperative lifestyle changes, and those with serious uncontrolled psychiatric or systemic illnesses (heart failure, active cancer, etc.).