Gastric Bypass Surgery – Types And Risks

Gastric bypass surgery is a common form of weight loss surgery that results in outstanding weight loss with minimal side effects. But once you undergo the gastric bypass surgery procedure you have to accept lifelong changes in your diet. The post-diet of gastric bypass surgery includes an adequate intake of protein, taking vitamin and mineral supplements including multivitamin, iron and calcium, B12 and avoiding sweets and fatty foods.

Types of gastric bypass surgery

In gastric bypass surgery, the surgeon takes off a large portion of the stomach leaving behind a tiny pouch. It is this small pouch that prevents overdose of eating as it can take very less amount of food. Moreover, with large parts of your stomach and small intestine bypassed, most of the nutrients and calories in the food do not get absorbed at all. This helps the person from gaining excess weight.

There are several types of bypass surgery operations.
They are:

§Roux-en-Y gastric bypass [RGB] – this is a common surgery where a small stomach pouch is created by stapling part of the stomach together or by vertical banding. This reduces the amount of food to be taken. Then a Y-shaped section of the small intestine is attached to the pouch to allow food to bypass the duodenum as well as the first portion of jejunum. This causes reduced calorie and rapid nutrient absorption.

§Extensive gastric bypass [biliopancreatic diversion] – in this complicated surgery, the lower portion of the stomach is removed. The small pouch that remains connected to the final segment of the small intestine completely bypasses both duodenum and jejunum.

People who undergo gastric bypass surgery always lose two-thirds of their excess weight within two years.

Risks of gastric bypass surgery

Gastric bypass surgery causes “dumping syndromes” where the stomach contents move too rapidly through the small intestine. The usual symptoms of gastric bypass surgeries include weakness, sweating, fainting, nausea, diarrhea, as well as inability to eat sweets.

People who undergo this procedure are at risk of:

§Band erosion – the band closing off part of the stomach disintegrates

§Pouch stretching – stomach gets bigger overtime, stretching back to its normal size before surgery

§Leakage of stomach contents into the abdomen [acid can eat away other organs]

§Nutritional deficiencies causing health problems

§Breakdown of staple lines – band and staple fall apart, reversing procedure

Gastric bypass diet

Gastric bypass diet helps the patients to drop 50% to 90% of their overall excess fats. The diet is designed to bring about significant weight loss. It basically includes foods that are high in protein and low in fat, fiber, calories, and sugar. You should have lots of vitamins and minerals. Iron, vitamin, folate and calcium are the best nutrients for patients undergoing gastric bypass surgery.

You can undergo gastric bypass surgery only if you have been obese for at least 5 years, do not have a history of alcohol abuse, and do not possess untreated depression and range between the ages 18 to 65.

Things You Need To Know About Gastric Bypass Surgery

Gastric bypass is a kind of surgical interference that is mostly used for significant weight loss if you are over weight. This surgical interference reduces your calorie intake. After the surgery, stomach will be small and you feel full faster to reduce amount of food. Part of stomach with small intestine will be literally skipped over so less amount of calories. Gastric bypass is also known as Roux-en-Y gastric bypass, Bariatric surgery – gastric bypass.

In Gastric by pass stomach is made small by creating a new small pouch at the top of abdomen by using plastic bands or surgical staples. The smaller stomach connected directly with the middle portion of small intestine called as jejunum, bypassing the remaining part of stomach and upper potion of small intestine called as duodenum. After performing Gastric bypass the patient is recommended to reduce the quantity of his intake food as small intestine absorbs less calories at this stage. This leads to weight reduction.

Doctors will only recommend for bypass surgery if you have no other way to lose weight and it is only considered if your body mass index 40+. Bypass surgery usually needs 4 to 6 day hospital stay. Most people return to normal activities within 20 to 30 days. Gastric bypass may sometime cause dumping syndrome. Dumping syndrome occurs when food moves very quickly through stomach and intestines, which causes sweating, weakness, faintness, nausea and sometimes diarrhea just after eating. These symptoms may go worse by taking high calorie foods.

As other surgeries, gastric bypass surgery also includes risks. Risks include:

1. Leak from stomach into abdominal cavity that can cause peritonitis.
2. Blood clot in lung.
3. Vitamin B12 deficiency- this occurs in near about 30% cases.
4. An iron deficiency anemia- this occurs in 50 cases.
5. Possibility of ulcers in 10% to 20% cases.

The weight reduction results after gastric bypass surgery are normally steady. Most patients reduce an average of 8 pounds every month and can reach towards stable weight between 20 and 25 months. Usually, greatest rate of weight loss take place in very beginning i.e. just after the surgery when you are just on liquid diet.

You will need a regular check up with doctor usually during first year. Your physician will evaluate your mental and physical health status, including weight change and your nutritional requirements. With help of a physician, dietitian and nutritionist, you can reduce your weight effectively through gastric bypass.