Introduction
Obesity is a serious health problem affecting millions of people worldwide. When diet and exercise are not enough, Bariatric Surgery offers a powerful solution for permanent weight loss and health improvement.
With over 35 years of surgical experience and more than 8,000 bariatric operations, in this guide I will tell you everything you need to know about Bariatric Surgery.
What is Bariatric Surgery?
Definition
Bariatric Surgery encompasses the surgical procedures used in the treatment of obesity. These operations:
- Reduce stomach capacity
- Limit eating amounts
- Alter nutrient absorption in some procedures
- Create hormonal changes
Who Can Be a Candidate?
- General criteria:
- Body Mass Index (BMI) 40 and above
- BMI 35-40 + comorbid diseases (diabetes, hypertension, etc.)
- BMI 30-35 + severe metabolic disease (in some cases)
Sleeve Gastrectomy
How Is It Performed?
In Sleeve Gastrectomy:
Advantages
- Effective weight loss (60-70% excess weight loss)
- Simpler procedure
- No intestinal bypass
- Reduces the hunger hormone
Results
| Time | Expected Excess Weight Loss |
|---|---|
| 6 months | 45-55% |
| 12 months | 60-70% |
| 2 years | 65-75% |
Gastric Bypass (Roux-en-Y Gastric Bypass)
How Is It Performed?
In Gastric Bypass surgery:
Advantages
- More weight loss (70-80%)
- Highest improvement rates in Type 2 diabetes
- Resolves reflux problems
- Strong metabolic effect
Results
| Time | Expected Excess Weight Loss |
|---|---|
| 6 months | 50-60% |
| 12 months | 70-80% |
| 2 years | 70-80% |
Sleeve Gastrectomy vs. Gastric Bypass
Comparison
| Factor | Sleeve Gastrectomy | Gastric Bypass |
|---|---|---|
| Surgery duration | 45-60 min | 90-120 min |
| Hospital stay | 1-2 nights | 2-3 nights |
| Weight loss | 60-70% | 70-80% |
| Diabetes remission | 60-70% | 80-85% |
| Reflux effect | May worsen | Generally resolves |
| Vitamin needs | Standard | Higher |
Pre-Operative Preparation
Evaluation
- Comprehensive medical history
- Physical examination
- Blood tests
- Imaging if needed
- Nutritional and psychological evaluation
Pre-Operative Diet
- 2-4 weeks before: High-protein, low-carb diet
- Shrinks the liver
- Makes surgery safer
Post-Operative Process
Recovery Timeline
Week 1-2: Liquid diet Week 3-4: Pureed foods Week 5-6: Soft foods Week 7+: Transition to normal foodsVitamins and Supplements
Lifelong requirement:
Exercise
- Walking from day one
- Gradually increasing activity
- Strength exercises after 6-8 weeks
Risks and Complications
Possible Risks
As with all surgeries, risks exist:
Risk Reduction
- Choosing experienced surgeon
- Modern techniques
- Comprehensive preparation
- Careful post-operative follow-up
Health Improvements
Beyond Weight Loss
Bariatric Surgery provides more than just weight loss:
Why Op. Dr. Mustafa Erol?
Experience and Trust
| Criterion | Detail |
|---|---|
| Surgical experience | 35+ years |
| Bariatric operations | 8,000+ |
| Total operations | 20,000+ |
| Certification | SRC Master Surgeon |
| Award | WhatClinic Service Award 2024 |
Our Approach
- Personalized treatment plans
- Patient-centered approach
- Comprehensive support
- Lifetime follow-up
Frequently Asked Questions
How long does surgery take?
Sleeve Gastrectomy: 45-60 minutes, Gastric Bypass: 90-120 minutes. Hospital stay is 1-3 nights.
How much weight will I lose?
Most patients lose 60-80% of their excess weight. Individual results may vary.
Is the surgery painful?
The surgery is performed under general anesthesia, you do not feel anything. Afterwards, there may be mild to moderate discomfort, which is controlled with pain medication.
How much time should I take off work?
Desk jobs: 1-2 weeks. Physical jobs: 3-4 weeks.
Book an Appointment
To start your Bariatric Surgery journey, book a free consultation appointment.
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- Email: [Email Address]
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*Last Updated: January 2026*
*This content is for educational purposes. For personal medical advice, consult specialist physicians.*