Mini Gastric Bypass
Private MEVA Hospital
Mini Gastric Bypass is one of the most effective, quick-surgery methods for weight loss that has been widely used in obesity treatment. The weight loss achieved with this method is comparable to that of traditional gastric bypass surgeries. Additionally, it plays a significant role in controlling metabolic diseases associated with obesity, such as type 2 diabetes, hypertension, and high cholesterol.
The core principle of Mini Gastric Bypass surgery is the reduction of the stomach volume, combined with partially bypassing the first section of the small intestine responsible for nutrient absorption. This results in reduced food intake and limited absorption of nutrients. A single connection (anastomosis) is created between the stomach and the small intestine, completing the bypass process.
The surgery is performed entirely via the closed (laparoscopic) method. The incisions made in the abdominal area are usually smaller than 1 cm, through which a camera and special surgical tools are inserted. During the operation, a small, tube-like stomach is created in the upper portion of the stomach. The remaining part of the stomach is left in the body, and no organs are removed. The newly created stomach is then connected to the small intestine, allowing food to bypass most of the stomach and directly enter the intestine.
Who Is Suitable for Mini Gastric Bypass Surgery?
Mini Gastric Bypass surgery is generally suitable for:
Individuals with a Body Mass Index (BMI) of 35 or higher
Patients with additional health problems related to excess weight
Individuals who have been unable to achieve permanent weight loss through diet and lifestyle changes
The surgery typically takes 30–60 minutes. Patients usually become eligible for discharge about 24 hours after the surgery.
How Does Weight Loss Occur with Mini Gastric Bypass?
Weight loss after Mini Gastric Bypass occurs through three main mechanisms:
Reduction in Stomach Volume
The newly created small stomach leads to significantly smaller portion sizes, and the patient feels full with much smaller amounts of food.Reduced Absorption
The first 200 cm of the small intestine is bypassed, meaning it no longer comes into contact with food. This section continues to carry bile and digestive fluids but does not interact with the food. This reduces calorie absorption, leading to faster and more sustainable weight loss.Hormonal Regulation
Since food cannot reach the passive part of the stomach, it remains untriggered, resulting in a decrease in the secretion of the hunger hormone (ghrelin). As a result, appetite significantly decreases.
How Are the Stomach and Small Intestine Connected?
The connection between the stomach and small intestine is created using a special stapler system, known as a surgical stapler. These systems are designed for use in closed surgeries. The transition channel formed between the stomach and small intestine is called the anastomosis, through which food passes from the new stomach to the small intestine.
Post-Surgery Discharge Process
The patient is helped to stand up about 4 hours after surgery.
Oral fluid intake is started within 24 hours.
If no issues are found during clinical follow-ups, the patient is typically discharged within 2–3 days with feeding guidelines.
Post-Surgery Nutrition
The post-surgery nutrition plan must be followed under the supervision of a dietitian. The general nutrition process is as follows:
In the first days: water and sugar-free, clear liquids
During the first month: liquid and semi-liquid foods
Fat-free milk and yogurt
Soups prepared with yogurt
Fruit purees
Pureed legumes and homemade meals
Fat-free cheeses and cereals prepared with milk
Sugary foods, sweets, carbonated drinks, alcohol, chocolate, and syrup-based products should be strictly avoided as they can cause nausea and vomiting.
