Obesity Surgery: Techniques and Who Is Eligible?
If you have been unable to achieve your desired results despite following a diet and exercise program, regain the weight you lose, or find that excess weight is making daily life difficult, you may be considering obesity surgery options. This is particularly important when excess weight is accompanied by other health conditions such as diabetes, high blood pressure, sleep apnea, or joint problems. In these cases, the issue should be evaluated not only in terms of weight loss but also in relation to overall health.
Obesity surgery, also known as bariatric surgery, includes surgical procedures that modify the structure of the stomach and, in some cases, the intestines to help eligible patients lose weight. It is not suitable for everyone who is overweight. The choice of surgical technique depends on an assessment of the patient’s body mass index, health condition, eating habits, and associated medical conditions.
Prof. Dr. Adem Dervişoğlu has more than 30 years of surgical experience and has performed over 10,000 surgical procedures, contributing to the evaluation and treatment of patients in the field of general surgery. In this article, we will discuss what obesity surgery is, who may be eligible, which procedures are available, the differences between sleeve gastrectomy and gastric bypass, what to expect after surgery, and how to prepare for bariatric surgery.
What Is Obesity Surgery?
Obesity surgery refers to surgical procedures performed in individuals with significant excess weight who may benefit from surgical treatment following an appropriate medical evaluation.
The main purpose of these procedures is to reduce stomach capacity and, in certain techniques, modify the passage of food through the intestines to support weight loss.
Who Is Eligible for Obesity Surgery?
Eligibility for obesity surgery is not determined solely by body weight. Body mass index (BMI), associated medical conditions, previous weight-loss attempts, and the patient’s overall health condition are evaluated together.
Current international guidelines recognize metabolic and bariatric surgery as an important treatment option, particularly for individuals with a BMI of 35 or higher. Surgery may also be considered in certain individuals with a BMI between 30 and 34.9 who have metabolic diseases.
Why Is Body Mass Index Important in Obesity Surgery?
Body mass index is a measurement calculated using a person’s height and weight. Although it is not sufficient on its own, BMI is an important indicator when evaluating eligibility for obesity surgery.
In addition to BMI, conditions such as diabetes, sleep apnea, high blood pressure, cardiovascular disease, and the patient’s previous weight-loss history may also be considered.
What Are the Different Types of Obesity Surgery?
Several bariatric surgery techniques are available today. The most commonly performed procedures include sleeve gastrectomy and gastric bypass.
- Sleeve gastrectomy
- Roux-en-Y gastric bypass
- Mini gastric bypass
- Adjustable gastric banding
- Other bariatric surgery procedures in selected patients
Each procedure has a different mechanism of action, benefits, potential risks, and long-term follow-up requirements.
What Is Sleeve Gastrectomy?
During sleeve gastrectomy, most of the stomach is removed, leaving behind a narrower, tube-shaped stomach. This reduces stomach capacity and helps patients feel full after eating smaller portions.
Sleeve gastrectomy is one of the commonly performed procedures in bariatric surgery today. However, its suitability for each patient must be determined through an individual medical evaluation.
What Is Gastric Bypass?
During gastric bypass surgery, the stomach is divided to create a smaller stomach pouch, and a new digestive route is established by connecting it to the small intestine while bypassing a portion of the intestine.
This procedure reduces stomach capacity and changes the way food passes through the digestive system. It may be an important option for certain patients, particularly those with metabolic conditions such as type 2 diabetes.
Sleeve Gastrectomy or Gastric Bypass: Which Is Better?
There is no single procedure that is suitable for every patient. When choosing between sleeve gastrectomy and gastric bypass, factors such as weight, reflux symptoms, metabolic conditions, eating habits, and surgical risks are evaluated.
For example, gastric bypass may be considered as an alternative for certain patients with significant reflux. Therefore, the appropriate surgical technique should be determined following a medical examination and the necessary diagnostic tests.
Preparation Before Obesity Surgery
Before surgery, patients undergo an evaluation not only from a surgical perspective but also in terms of their overall health.
- Blood tests
- Nutritional assessment
- Cardiovascular and respiratory evaluation
- Endoscopic examination when necessary
- Assessment of diabetes and other metabolic conditions
- Counseling about nutrition and lifestyle changes
The required examinations may vary depending on the patient’s individual health condition.
How Is Obesity Surgery Performed?
Today, obesity surgery is generally performed using laparoscopic techniques, which involve making small incisions. However, the surgical technique used depends on the patient’s condition and the type of procedure being performed.
During surgery, the planned modifications to the stomach or the stomach and small intestine are carried out according to the selected procedure.
How Long Does Obesity Surgery Take?
The duration of surgery may vary depending on the procedure, the patient’s anatomical characteristics, and the complexity of the operation. Different procedures, such as sleeve gastrectomy and gastric bypass, have different operating times.
Therefore, rather than giving a single standard duration, the expected operating time should be evaluated according to the specific procedure planned.
Recovery After Obesity Surgery
After surgery, the patient’s diet is gradually adjusted. Nutrition generally begins with liquids and soft foods before progressing toward a more regular diet according to the patient’s tolerance.
Adequate protein intake, fluid consumption, vitamin and mineral supplementation, and regular medical follow-up are important during the postoperative period.
Nutrition After Obesity Surgery
Since stomach capacity is reduced, patients need to make changes to their eating habits after surgery. Eating smaller portions, consuming food slowly, and maintaining adequate fluid intake are important.
A nutritional program can be arranged by the physician and dietitian according to the type of surgery and the patient’s individual needs.
Vitamin Supplements After Obesity Surgery
Maintaining adequate vitamin and mineral levels is important after bariatric surgery. Nutritional deficiencies may be more likely following procedures such as gastric bypass that affect nutrient absorption, making regular monitoring essential.
The type of vitamin or mineral supplementation required should be determined according to blood test results and the surgical procedure performed.
What Are the Risks of Obesity Surgery?
As with any surgical procedure, obesity surgery carries certain risks, including bleeding, infection, blood clots, and complications related to anesthesia. Depending on the procedure, other complications such as leakage, intestinal problems, and nutritional deficiencies may also occur.
Before surgery, the patient’s health condition and the potential risks associated with the planned procedure should be evaluated in detail by the surgeon.
Who May Not Be Suitable for Obesity Surgery?
Not every person with excess weight is a suitable candidate for obesity surgery. During the evaluation process, the patient’s overall health, anesthesia-related risks, eating habits, and ability to maintain the necessary lifestyle changes after surgery are also considered.
In the presence of certain active medical conditions or factors that increase surgical risks, the operation may be postponed or alternative treatment options may be considered.
Weight Loss After Obesity Surgery
The amount and rate of weight loss after surgery vary from person to person. The surgical technique, initial body weight, age, eating habits, physical activity, and metabolic characteristics may all influence the results.
For this reason, it would not be appropriate to guarantee a specific amount of weight loss before surgery. The process should be supported by regular follow-up and long-term lifestyle changes.
Obesity Surgery and Diabetes
In individuals with type 2 diabetes associated with obesity, weight loss and metabolic changes may have a positive effect on blood sugar control. Bariatric surgery may also be considered as metabolic surgery in selected patients.
However, diabetes medications may need to be adjusted after surgery. Therefore, regular medical monitoring is important for patients with diabetes.
Obesity Surgery and Acid Reflux
Acid reflux is an important factor to consider when selecting a bariatric surgery technique. Some patients may experience persistent or worsening reflux symptoms after sleeve gastrectomy. Gastric bypass may offer a different treatment option for suitable patients with reflux.
For this reason, individuals with significant reflux symptoms should discuss their condition with their surgeon before surgery.
Follow-Up After Obesity Surgery
Obesity surgery is not a process that ends with the operation itself. After surgery, patients should undergo regular monitoring of weight changes, nutrition, vitamin and mineral levels, existing medical conditions, and potential complications.
The frequency of follow-up appointments may vary depending on the patient’s condition and the surgical technique used.
You can contact our clinic to find out whether obesity surgery may be suitable for you and to receive an individual assessment of the available surgical options.
Frequently Asked Questions About Obesity Surgery
What Is Obesity Surgery?
Obesity surgery refers to surgical procedures that modify the structure of the stomach and, in some cases, the intestines to support weight loss in eligible individuals with significant excess weight.
Who Is Eligible for Obesity Surgery?
Obesity surgery may be considered for individuals who meet specific BMI criteria, particularly when excess weight is associated with other health conditions. Eligibility is determined following an individual medical examination and health assessment.
What Techniques Are Used in Obesity Surgery?
The main techniques include sleeve gastrectomy, Roux-en-Y gastric bypass, and mini gastric bypass. Other procedures may also be considered for selected patients.
Is Sleeve Gastrectomy or Gastric Bypass Preferred in Obesity Surgery?
The same procedure is not suitable for every patient. Factors such as reflux, diabetes, weight, eating habits, and other medical conditions are evaluated before making a decision.
Is Obesity Surgery Risky?
Like any surgical procedure, obesity surgery carries a risk of complications. The risks may vary depending on the surgical technique and the patient’s health condition.
How Long Does Obesity Surgery Take?
The duration of surgery varies depending on the procedure and the patient’s individual characteristics. Sleeve gastrectomy and gastric bypass do not have identical operating times.
What Can You Eat After Obesity Surgery?
Nutrition generally begins with liquids and soft foods before gradually progressing to more regular foods. The dietary plan is adjusted according to the type of surgery and the patient’s tolerance.
Are Vitamin Supplements Necessary After Obesity Surgery?
Some patients require vitamin and mineral supplementation. Regular nutritional monitoring and blood tests are particularly important after procedures such as gastric bypass that affect nutrient absorption.
Does Obesity Surgery Affect Acid Reflux?
Reflux symptoms may change depending on the surgical technique used. Therefore, the choice of procedure should be carefully evaluated in patients with existing reflux.
How Much Weight Can You Lose After Obesity Surgery?
Weight loss varies from person to person. The surgical technique, initial body weight, nutrition, physical activity, and metabolic characteristics may all affect the outcome.
Disclaimer: This information is intended for general educational purposes only. Please consult your doctor for an individual medical evaluation and treatment plan.
