Gastric by pass surgery is a surgical technique used in obesity surgery practices and aims to help the patient lose weight. During the surgery, first a small pocket (pouch) is created in the upper part of the stomach, then the initial 60-100 cm of the small intestine is disabled in terms of food passage and a connection is made to this pocket at this level. From this connection point, a connection is made approximately 100-150 cm below the disabled small intestine to allow bile fluid and pancreatic enzymes to flow (RNY Gastric Bypass). Sometimes, after a pocket (pouch) is created in the stomach, the small intestine can be connected to this stomach pocket with a single connection from approximately 2 meters away (Mini Gastric Bypass).
Bypass surgeries are both restrictive, that is, making you eat less, and malabsorptive (reducing absorption), that is, techniques that allow you to benefit less from the eaten foods. Since a section of the small intestine is disabled in these surgeries, vitamin and mineral deficiencies are more common. It may be necessary to take supplements such as multivitamins, iron and B12 for many years after the surgery. However, even if these conditions do not exist in the surgical treatment of obesity, there is no harm in performing bypass surgeries.
Leaks and bleeding are undesirable complications that occur in these surgeries. In addition, if the length of the disabled small intestines is not calculated well, it is possible to encounter chronic problems such as diarrhea.
The belief that there is no weight gain after bypass surgery does not reflect the truth. In all bariatric surgeries, it is possible to gain weight back if patients cannot make lifestyle changes along with the surgery. For this reason, patients' having sufficient post-operative information, learning the nutrition rules and exercising regularly constitute the basis of permanent weight loss.
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