Who is suitable for weight loss surgery?

Severe obesity in patients with the combined often with heart disease, diabetes, osteoarthritis, high blood pressure and sleep apnea syndrome, so that normal life and work are restricted. In China, as living standards and dietary changes in the structure, more and more obese patients. According to the latest statistics, over the past 10 years China's obesity rate has been close to the United States for 50 years the growth rate in 2001 was the first time included in the incidence of obesity in the world rankings. At present, the main method of weight loss have taken the gastrointestinal tract lipase inhibitor, gene therapy and surgery. For severe obesity in the usual method of weight loss surgery may be null and void when.

In the United States, body mass index BMI = weight / height 2, more than 40 tips for severe obesity surgery is the scope, and in BMI between 35-40 suffering from heart and lung diseases caused by obesity, diabetes and high blood pressure, and so is the scope of the operation . As a result of China's different ethnic origin, in the general body weight over 200 jin suffered from pathological need to guard against the possibility of obesity, weight loss surgery should be carried out.

Surgical methods restriction on food intake or block the digestive process in order to achieve the purpose of weight loss, surgical methods used are:

Limit the capacity of the stomach. Use of gastric banding surgery and gastric-band vertical angioplasty, can accommodate only a 1 oz of food Wei Dai, Wei Dai-stomach to other parts of the caliber of 1 / 4 inches. Wei Dai patients after surgery due to the existence of the impact and the emptying of food after eating a small amount of food will have a sense of fullness in order to meet the dietary restrictions of patients. But the long-term effects of surgery and Statistics found that 60% of patients after a few years will be a marked increase in body weight and even returned to preoperative levels.

Another method is a shortcut gastrointestinal surgery, the surgical method used to reduce the stomach to limit food intake of patients, at the same time to reduce the stomach and small intestine low line to form the "short circuit" in order to reduce the calorie and nutrient absorption . As a result of this operation restrictions on the capacity of the stomach at the same time reduce the intestinal absorption of nutrients to the area, the more obvious weight loss.

Harvard University, Massachusetts General Hospital, a subsidiary of the use of 608 cases of gastrointestinal surgery shortcut to the statistics show that obese patients after surgery can reduce the 40% -75% of the excess part of the body weight, 30% -40% of patients to restore the ideal body weight, surgery After 1-2 years after the weight is basically kept at a constant level. Have combined Ⅱ patients with type 2 diabetes insulin dosage was decreased to 78% of the patients from insulin dependence. 50% of patients with hypertension improved significantly reduce blood pressure medicine. Cardiac function improved significantly reduced cardiac hypertrophy. 70% of patients with sleep apnea syndrome were significantly lower, 40% radical.