Stomach ring or Bonding   ?
How does Bonding work ? This ring reduces the volume of the upper part of the stomach and will fill the stomach by eating a small amount of food. If eating continues, the patient will vomit. This method does not control the hormones that increase appetite. In this method, an adjustable silicone ring is placed around the first part of the stomach, slightly below the junction of the esophagus to the stomach, and a reservoir is placed under the skin of the abdominal wall for further adjustments, which is injected from the outside with sterile distilled water. Inside this tank, the ring becomes narrower, thus limiting the amount of incoming food.  
Advantages: .Shorter operation length than other standard surgeries .The least amount of manipulation on the gastrointestinal tract.  
.Disadvantages: It is weaker in terms of weight loss than other methods. Due to the foreign object, there is a possibility of damage to the stomach wall, infection, rupture of the pump, displacement of the ring, so that 70% of the gastric rings need to be removed within 4 years. Because it has no effect on the hormones that cause hunger and obesity and diabetes. The patient is always struggling with hunger and inability to eat, so the subconscious patient turns to junk food and as a result will not have the desired weight loss. Experience shows that gastric banding does not respond well to people who eat sweets and snacks, and due to dilation of the upper part of the ring, a diaphragmatic hernia and part of the stomach enters the chest and causes pain when eating and severe reflux. .  
Complications of bonding : Patients may never feel full and this is one of the drawbacks of the bonding method. This method does not manipulate the digestive system. The gastric ring has a chamber that is placed under the skin, and whenever the band or ring expands, it can be narrowed through this 
chamber, but the ring is a foreign body and there is a possibility of infection and ulceration in the stomach wall. Dislocation of the ring can also cause stomach upset and an emergency problem. In case of any complications, the ring should be removed immediately. In this case, the patient's weight returns quickly and may even exceeds the initial weight.