Gastric Bypass Surgery
Gastric Bypass operations involve stapling off a portion of the stomach to form a small pouch and attaching the limb of the intestine to that pouch. This creates a pathway for food which allows it to bypass most of the stomach and a short segment of the small intestine. This operation limits the amount of food ingested and also induces a small component of malabsorption of the nutrients.
Roux-en-Y Gastric Bypass
The Gastric Bypass operation works by reducing the size of the stomach to 1-2 ounces (to limit how much can eaten at once) and bypassing a short segment of intestine (to slightly limit absorption of the food eaten).
This is done by stapling off a portion of the stomach to form a small pouch and attaching the limb of the intestine to that pouch. This creates a pathway for food to bypass most of the stomach and a short segment of the small intestine.
Almost all of the surgeries done here are laparoscopic, also called minimally invasive surgery. This type of surgery requires a few small incisions with less pain than open surgery.
Benefits of Surgery
Gastric Bypass Surgery works in many ways:
- It limits the amount of food you can consume at one time.
- It enables you to feel satisfied after smaller portions.
- It provides you with a “tool” to help achieve the permanent weight loss you desire.
- Patients who adopt permanent lifestyle changes, both through eating changes and exercise, are usually able to keep their weight off.
- Most importantly, gastric bypass surgery often helps eliminate many of these medical problems:
- Chronic Headaches
- Heel Pain
- High Blood Pressure
- High Cholesterol
- Joint Pain
- Leg Swelling
- Leg Ulcers
- Menstrual Irregularities
- Obesity Hypoventilation Syndrome
- Pseudotumor Cerebri
- Reflux (Heartburn)
- Shortness of Breath
- Sleep Apnea
- Urine Control Problems
Normally, food enters the stomach through the esophagus and leaves through the duodenum. (Under the liver in this illustration.)
Digestive juices then enter the small intestine where they mix with the food. After traveling through the small intestine they pass through the large intestine before leaving the body.
In the Roux-en-Y Bypass procedure, a small pouch is formed by separating the top part of the stomach from the rest of the stomach
The pouch is about 5-10% of the size of the old stomach, therefore holds less food.
The near section of the small intestine (the jejunum) is separated by use of a surgical stapler approximately 24 inches from the end of the stomach.
The section coming from the stomach is reattached to the small intestine approximately 75 cm (30 inches) from the recently formed end of the small intestine.
This forms the 'Roux limb.' The Roux limb is then passed up to the pouch.
The near end of the Roux limb is attached to the pouch.
The Roux limb carries food to the remaining intestines (see arrows).
The Y limb (arrows) carries digestive juices from the bypassed stomach, pancreas, liver, and duodenum to the remaining intestines.