While there are a number of non surgical diet plans available, bariatric surgery, whether it’s gastric bypass, lap band surgery or sleeve gastrectomy, produces the best results for achieving long-term success. Bariatric Surgery Can Effectively Treat Type 2 Diabetes, High Blood Pressure, and Sleep Apnea. Bariatric surgery has been documented as reducing premature death rates and improving, if not curing, the co-morbidities (other related illnesses) associated with being obese. We’ve also seen improvement with arthritis general pain, mobility, asthma, infertility, and lymphedema.