Side effects that may occur during balloon application are not different from those that may occur during upper gastrointestinal system endoscopy (Gastroscopy) (See Endoscopy-Gastroscopy). In some patients, reflux complaints in the form of burning and heartburn in the chest may increase after the balloon is placed in the stomach.
In the first days after balloon insertion, the upper abdomen Discomfort and bloating, nausea and rarely vomiting can be seen in the department, and these complaints usually regress within a few weeks. However, when vomiting lasts for a long time, the fluid and electrolyte balance of the body may be disturbed, so the patient should be monitored under the control of a doctor and the balloon should be removed when necessary. Some patients may feel pain when lying on their stomach or on their side.
If the balloon in the stomach is not inflated enough or deflated, the balloon may block the stomach outlet and cause nausea and vomiting. Rarely, the deflated balloon may pass from the stomach to the small intestine and cause intestinal obstruction, and surgical intervention is required for the treatment of this condition. Since the balloon is in motion in the stomach, the probability of gastric ulcer formation due to the pressure of the balloon is negligible.
Since the balloon is inflated with sterile water mixed with methylene blue, in case of urine in blue color, it is understood that the balloon has burst and the balloon is easily removed from the stomach by endoscopy without losing the knowledge. Nowadays, balloons filled with air instead of water are preferred and are better tolerated by the patient.