The rate of weight loss is reported as being slightly higher after the gastric bypass operation than after gastroplasty. Substantial weight loss generally occurs for both procedures 18 to 24 months after surgery. Some regaining is common two to five years after surgery. Regaining may be more common after gastroplasty than after gastric bypass. Effect of Surgery on Associated Medical Conditions Weight reduction surgery has been reported to improve conditions such as sleep apena, diabetes, high blood pressure, and hypercholesterol.
Many patients report an improvement in mood and other aspects of psychosocial functioning.
Because the laparoscopic approach is performed in a manner similar manner to that used in the open approach, the long-term results should be similarly good.