How the Procedure Works
Before a gastric balloon procedure, patients must avoid eating for 8–12 hours. The treatment itself takes only 10–15 minutes and is performed under sedation, ensuring the patient feels no discomfort.
The process begins with an endoscopy to assess the oesophagus, stomach, and duodenum. Once confirmed safe, a soft, gel-coated balloon is guided through the oesophagus into the stomach. Under endoscopic control, the balloon is then inflated with sterile fluid and the procedure is completed.
After the Procedure
Patients are monitored for a few hours and can typically go home the same day, as there is no need for hospitalisation. However, staying in close communication with the doctor and care team is essential during the following weeks. Their guidance helps manage early symptoms and ensures the balloon functions as intended.
Who Is a Good Candidate?
The gastric balloon is suitable for adults aged 18–65 with a BMI between 30 and 40 who have struggled to lose weight through diet and exercise. It can also be used before weight loss surgery to help reduce surgical risk, especially in patients with morbid obesity or those for whom anaesthesia may be complicated. For such individuals, the gastric balloon acts as a preoperative preparation tool.
Possible Side Effects
Common complaints after a gastric balloon include nausea, vomiting, bloating, reflux symptoms, upper abdominal discomfort, and occasionally pressure-related stomach ulcers. Nausea and vomiting are the most frequent and usually improve within 3–7 days. If vomiting persists, medical supervision may be required, and in rare cases the balloon may need to be removed. Adjustable silicone balloons can be slightly deflated to help reduce discomfort during the adaptation phase.
Long-Term Considerations
When the balloon is removed after 6–12 months, the stomach returns to its previous size, which means weight regain is possible. For this reason, patients must begin making lifestyle changes from the moment the balloon is placed and follow the dietary plan created with their doctor. When combined with long-term behaviour change, the gastric balloon is one of the least risky options for overweight patients.
Who Should Not Receive a Gastric Balloon?
A gastric balloon is not suitable for individuals with:
- Gastritis or gastric ulcers
- A history of stomach surgery
- Gastric hernia
- Pregnancy or breastfeeding
- Alcohol addiction
- Blood clotting disorders
