What is Bariatric Surgery? - Forever Clinica

31 July 2025

Take a Healthy Step Towards a New Life with Forever Clinica: A Deep Dive into Bariatric Surgery in Istanbul, Turkey

Hello dear readers! Today, we’re diving deep into one of the most significant health challenges of our time: obesity. We’ll explore bariatric surgery, a revolutionary solution in the fight against this condition. At Forever Clinica, located in the vibrant city of Istanbul, Turkey, we aim to provide you with the most current, accurate, and heartfelt information on this topic. Remember, a healthy life is a choice, and we are here to support you on this journey.

A Lasting Solution for Obesity: What is Bariatric Surgery?

Obesity, a chronic health issue, significantly lowers the quality of life for millions today, bringing with it numerous serious conditions like diabetes, high blood pressure (hypertension), and sleep apnea. It’s no longer just a cosmetic concern but a full-blown medical condition. When diet and regular exercise aren’t enough to achieve the desired results, bariatric surgery, also known as weight loss surgery, stands out as an effective and permanent solution.

So, what exactly is bariatric surgery? Essentially, it’s a general term for surgical procedures that promote weight loss by making anatomical changes to the stomach and small intestines. The goal isn’t just to lose weight but also to treat obesity-related comorbidities. Imagine losing your excess weight while also having the chance to stop your diabetes medication or regulate your blood pressure! This is why bariatric surgery marks a turning point, a new beginning for many.

At Forever Clinica in Istanbul, your greatest assurance throughout this process is our modern surgical techniques, applied in accordance with international standards, and our team of expert, experienced surgeons. Knowing that we are by your side every step of the way will bring you peace of mind when making this crucial decision.

Who is a Suitable Candidate for Bariatric Surgery?

Bariatric surgery isn’t for every obese patient. As it’s a significant surgical procedure, it’s considered the most suitable solution for patients who meet specific criteria. Remember, at Forever Clinica, every patient is unique, and treatment plans are meticulously tailored.

So, who might be a suitable candidate for this surgery? Let’s take a closer look at the criteria:

Individuals with a Body Mass Index (BMI) of 40 or higher: This category includes patients classified as “morbidly obese,” representing the most advanced stage of obesity, often accompanied by severe health issues.
Individuals with a BMI between 35-40 who have obesity-related comorbidities: For patients in this BMI range with chronic conditions linked to obesity, such as diabetes, hypertension, sleep apnea, or joint problems, bariatric surgery is a crucial treatment option.
Individuals who have tried diet and regular exercise for at least 6 months without success: This means that before a surgical decision is made, lifestyle changes must have been attempted and proven insufficient. For us, surgery isn’t a last resort but an effective solution applied at the right time.
Generally, patients between 18-65 years old: While this age range is a general guideline, in special circumstances (e.g., adolescent obesity or in older age), the age limit may be extended after a detailed evaluation by our surgeons.

At Forever Clinica in Istanbul, before making a surgical decision, a detailed evaluation is conducted using a multidisciplinary approach, involving doctors from various specialties (endocrinologists, psychiatrists, dietitians, etc.). Our aim is to determine the safest and most effective path for you.

Types of Bariatric Surgery: Which Method is Right for You?

Bariatric surgery isn’t a single type of operation; it encompasses various methods applied with different techniques. Each method has its unique advantages and disadvantages. At Forever Clinica, in our Istanbul clinic, the most suitable surgical method is determined based on the patient’s health status, comorbidities, eating habits, and lifestyle. Let’s delve deeper into the most common bariatric surgery methods:

1. Sleeve Gastrectomy (Gastric Sleeve)

Sleeve gastrectomy is one of the most commonly preferred and popular bariatric surgery methods today. In this procedure, approximately 80% of the stomach is surgically removed, leaving a slender, tube-shaped stomach similar to a banana.

So, how does this surgery lead to weight loss? The mechanism is quite simple yet incredibly effective:

Restriction of Food Intake: Since the stomach’s volume is significantly reduced, the amount of food you can consume in one sitting decreases substantially. This naturally leads to lower calorie intake. You’ll start feeling full even with smaller portions.
Reduction of Hunger Hormones: The removed part of the stomach produces a hormone called “ghrelin,” which stimulates appetite. With the removal of this portion of the stomach, ghrelin production decreases. This significantly reduces your appetite and hunger pangs after surgery.
Metabolic Changes: Sleeve gastrectomy doesn’t just provide mechanical restriction; it also positively influences metabolic processes. This plays a significant role in improving blood sugar control, especially in patients with type 2 diabetes.

What are the advantages of sleeve gastrectomy?

Shorter operation time and recovery period.
Preservation of intestinal anatomy (meaning fewer issues with vitamin and mineral absorption).
Effective weight loss and improvement of obesity-related diseases.
Performed using a minimally invasive (laparoscopic) method, leading to less pain and smaller incisions.

At Forever Clinica in Istanbul, sleeve gastrectomy procedures are performed laparoscopically (keyhole surgery). This allows our patients to recover faster and return to their daily lives more quickly.

2. Gastric Bypass (Roux-en-Y Gastric Bypass)

Gastric Bypass is considered the “gold standard” of bariatric surgery, a more complex yet equally effective method. Two main changes are made in this surgery:

Stomach Reduction: A small stomach pouch (about 30-50 ml) is created in the upper part of the stomach. The remaining larger part of the stomach is rendered non-functional but remains in the body.
Small Intestine Rerouting (Bypass): The created small stomach pouch is directly connected to a more advanced part of the small intestine. This way, food bypasses the large part of the stomach and the first part of the small intestine (duodenum and a portion of the jejunum) and goes directly to the connected section.

So, how does gastric bypass lead to weight loss?

Restriction of Food Intake: Similar to sleeve gastrectomy, the reduced stomach volume ensures you eat less.
Restriction of Nutrient Absorption: When food bypasses the initial parts of the small intestine and goes directly to a more advanced section, the absorption of nutrients and calories is somewhat reduced.
Hormonal Changes: Hormonal changes occurring in the small intestine help control appetite and have a powerful curative effect, especially on type 2 diabetes.

What are the advantages of gastric bypass?

Very effective and long-lasting weight loss.
Superior success rates, especially in the treatment of type 2 diabetes.
Can also be beneficial for patients with stomach issues like reflux.

Although gastric bypass surgery is a bit longer and more complex than sleeve gastrectomy, it can yield incredible results in suitable patients. Our experienced surgeons at Forever Clinica in Istanbul use the most modern techniques to successfully perform this intricate surgery.

3. Duodenal Switch (Biliopancreatic Diversion with Duodenal Switch – BPD/DS)

Duodenal Switch is one of the most comprehensive and powerful bariatric surgical methods. It is generally preferred for patients with a very high BMI (50 or higher) or those who haven’t achieved sufficient results from other surgeries. This surgery is performed in two stages:

Creation of a Sleeve Stomach: In the first stage, similar to sleeve gastrectomy, a large portion of the stomach is removed, and a tube-shaped stomach is created.
Intestinal Rerouting and Absorption Restriction: In the second stage, a very large part of the small intestine is bypassed, and the section of the intestine where nutrients are absorbed is significantly shortened. This dramatically reduces nutrient and calorie absorption.

What makes Duodenal Switch different?

Very Powerful Weight Loss: It leads to much greater weight loss compared to other methods.
Metabolic Effect: It’s one of the most effective methods for improving type 2 diabetes.

However, be cautious! Due to its powerful absorption restriction, Duodenal Switch requires more careful monitoring for vitamin and mineral deficiencies. At Forever Clinica in Istanbul, we emphasize that post-operative follow-up and supplement use are vital in such surgeries.

4. Gastric Banding (Adjustable Gastric Band)

Gastric banding operates on the principle of reducing stomach volume by placing an adjustable silicone band around the upper part of the stomach. This band can be inflated or deflated via an external port.

Why is it less preferred today?

Lower Weight Loss Rates: Generally provides less weight loss compared to other methods.
Need for Revision: Complications such as band slippage, erosion, or infection can more frequently lead to the need for revision surgery.
Difficulty Eating: Some patients may experience difficulty with food passage and vomiting.

For these reasons, Forever Clinica in Istanbul rarely opts for gastric banding. However, it can still be considered an option after a patient-specific evaluation, especially when other methods are not suitable.

Post-Bariatric Surgery Journey: Welcome to Your New Life!

Surgery is only the first step in your weight loss journey. The real key to lasting success lies in adapting to and maintaining lifestyle changes during the post-operative period. At Forever Clinica, in our Istanbul facility, we offer comprehensive support to help our patients lose weight in a healthy and sustainable way and adapt to their new lives.

Here’s what to expect in the post-operative process:

Regular Check-ups and Medical Monitoring: You’ll have regular doctor appointments, more frequently in the initial post-operative period. During these check-ups, your general health, weight loss progress, potential complications, and vitamin/mineral levels will be monitored.
Personalized Nutrition Program: Your diet will completely change after surgery. This process begins with liquid foods, gradually progresses to pureed, then soft, and finally solid foods. Our experienced dietitians at Forever Clinica in Istanbul will create a personalized, balanced, and nutrient-rich eating plan for you, guiding you through this process. Learning what to eat, when to eat, and how much to eat is key to this new phase.
Exercise Planning: Regular physical activity is crucial for sustainable weight loss and improving your body composition. Your doctor and dietitian will recommend an exercise program suitable for your health status and physical capacity. You can start with light activities like walking and gradually increase your pace over time.
Psychological Support: The weight loss journey involves not only a physical but also a mental transformation. You might experience changes in your relationship with food, adaptation to a new body, social reactions, and emotional challenges. When necessary, we can arrange consultations with psychologists to support your mental well-being throughout this process.
Supplement Use: Especially after malabsorptive surgeries like gastric bypass and duodenal switch, you may need to take vitamin and mineral supplements for life to prevent deficiencies. Your doctor will determine the appropriate supplements and dosages for you. Regular use of these supplements is vital for maintaining your health.

Remember, bariatric surgery is not a “magic wand”; it requires a lifestyle change. The surgery provides you with a tool, but it’s up to you to use this tool correctly and adopt new habits to achieve lasting and healthy results. Proper nutrition and regular physical activity will become an integral part of your new life.

Frequently Asked Questions (FAQs)

We understand that you may have many questions about bariatric surgery. Here are the most frequently asked questions and our answers at Forever Clinica in Istanbul:

1. Is bariatric surgery risky?

Like any surgical procedure, bariatric surgery carries some risks. These include infection, bleeding, leaks (leakage from the stomach staple line), anesthesia-related risks, and rarely, blood clot formation. However, these risks are minimized with modern medical techniques, an experienced surgical team, and a fully equipped hospital environment. At Forever Clinica, we prioritize patient safety and meticulously implement all precautions. All potential risks will be explained to you in detail before the surgery, and all your questions will be answered.

2. How much weight is lost after surgery?

Weight loss varies significantly depending on the type of surgery, the patient’s starting weight, metabolism, and most importantly, their adherence to post-operative lifestyle changes. However, generally, patients lose 60% to 80% of their excess weight within the first 1-2 years. For example, if your excess weight is 100 kg (approx. 220 lbs), you could expect to lose between 60 to 80 kg (approx. 132-176 lbs). This is an impressive rate and a significant step towards achieving a healthy weight.

3. Can one get pregnant after bariatric surgery?

Yes, pregnancy is possible after bariatric surgery, and for many women experiencing infertility due to obesity, it can even increase the chance of conception. However, it’s recommended to wait at least 12-18 months after surgery for the body to adapt to the new state and for weight loss to stabilize. This waiting period is crucial for both the mother’s health and the baby’s development. Pregnant patients considering this must discuss it with their doctors and be under regular supervision. A healthy pregnancy journey under medical supervision is possible.

4. Is it possible to regain weight after surgery?

This is a very important question! Unfortunately, if post-operative dietary and lifestyle changes are not adhered to, weight regain can occur. Bariatric surgery is not a miracle; it offers you a new beginning. But it is up to you to make this beginning sustainable. Weight regain can be prevented through regular follow-ups, adherence to the nutrition program, physical activity, and psychological support when needed. At Forever Clinica in Istanbul, we do not leave our patients alone in this process; we support them with regular check-ups and educational programs. Adopting healthy habits is the key to lasting success.

5. What are the prices for bariatric surgery?

Bariatric surgery prices vary depending on the surgical method used (sleeve gastrectomy, gastric bypass, etc.), the patient’s specific condition, and the experience of the hospital and surgical team. Transparency is important to us, but it would not be accurate to give a general price as each patient’s situation is unique. For detailed information and a personalized quote, we kindly ask you to contact our Forever Clinica consultants in Istanbul. Our consultants will answer all your questions and provide you with a tailored evaluation.

Step Towards a Healthy Future with Forever Clinica in Istanbul!

Dear readers, fighting obesity can be a challenging journey, but you are never alone. Bariatric surgery, when performed in the right hands and with the right approach, is an effective and lasting solution in the fight against obesity. These surgeries not only improve your physical health but also enhance your quality of life psychologically and socially, offering you a brand new beginning.

At Forever Clinica in Istanbul, Turkey, we are by your side throughout this process with our expert physicians, modern medical infrastructure, patient-focused approach, and comprehensive post-operative support programs. We look forward to taking this important step towards a healthy future together. Remember, change requires courage, and we are here to support your bravery.

Wishing you healthy and happy days!