How Long Is Gastric Bypass Surgery? When researching bariatric surgery options, many wonder how long bariatric surgery takes. How long is gastric bypass surgery take? We wrote an article to clarify the question. The short answer is that the duration of most bariatric surgeries is about 60 to 90 minutes. The hours provided are just instructions. Actual surgery times may vary depending on your medical history, BMI, and unique anatomy.
It is also important to remember that surgery is only one component of a much larger procedure. Keep reading to learn more about how long most bariatric surgeries last and what you can expect with each procedure.
Duration of various bariatric surgeries
Bariatric surgeries achieve weight loss by either reducing the amount of food a person can eat, causing nutrient malabsorption, or a combination of gastric reduction and nutrient malabsorption. Most gastric bypass surgeries are performed with laparoscopic surgery techniques, which are considered minimally invasive.
Most gastric bypass surgeries are performed with laparoscopic surgery techniques, which are considered minimally invasive.
Most bariatric surgeons recommend one of the following four surgeries for most of their patients.
How long is gastric bypass surgery?
Gastric bypass surgery: Approximately 90 minutes
The process by which people are most familiar is gastric bypass, which is considered the “gold standard” in bariatric procedures. While the procedure is commonly referred to as gastric bypass, the full medical name is Roux-en-Y gastric bypass (often abbreviated RYGB).
During this type of surgery, the surgeon separates the top of the stomach from the rest of the stomach using surgical staples. This creates a small bag that can hold about 30 milliliters of food or liquid.
The surgeon then divides the small intestine into two sections. The lower part of the small intestine is then connected to the newly formed smaller stomach. The upper part of the small intestine is then reconnected to the lower part of the small intestine.
Gastric bypass surgery makes a person feel full after eating small amounts of food. Bypassing part of the small intestine reduces the absorption of calories and nutrients because it reduces the time that food passes in the small intestine.
Redistribution of food also causes changes in hormones, which suppress hunger and are responsible for causing type 2 diabetes.
Gastric bypass surgery is a term used to describe various forms of weight loss surgery that involve reducing the size of the stomach and bypassing one part of the small intestine. All forms are similar in that a large portion of the stomach is cut to reduce the amount of food that can be consumed and the small intestine is divided and repositioned to reduce calorie absorption.
How does it work
Gastric bypass surgery uses both a restrictive and a non-absorbent approach to weight loss.
A restrictive process is one that limits the amount of food that can be consumed at any one time. In gastric bypass surgery, this is done by creating a new smaller stomach that imposes smaller portions of the meal.
A process of malabsorption is one that reduces the amount of food absorbed by the digestive system. In gastric bypass surgery, this is done by bypassing the upper part of the small intestine. As food passes less through the intestines where digestion takes place, the food is partially digested and there is less absorption of nutrients and calories.
Roux-en-Y Gastric Bypass
When it was first developed in the late 1960s, gastric bypass surgery used a loop bypass with a larger stomach. The loop configuration resulted in bile regression and the function was modified to the Roux-en-Y (RNY) configuration that is popular today. With Roux-en-Y gastric bypass, one end of the small intestine is connected to a very small stomach. This form, in contrast to the initial configuration of the loop, prevents bile from entering the upper part of the stomach and esophagus. The rest of the stomach and the first part of the small intestine is bypassed.
Roux-en-Y is now the most common variant of gastric bypass surgery. Many studies have shown that it leads to lasting weight loss and improvement in the health problems associated with obesity. Although not without risk, its results have won the gold standard for bariatric surgery. The procedure has been accepted by most doctors and weight loss insurance companies as an effective treatment for obesity when diet and exercise fail.
In Roux-en-Y gastric bypass surgery, the stomach is divided into a smaller, upper sheath and larger, a lower incision, and the small intestine is divided and redirected. The new smaller stomach pocket is created in the upper part of the stomach where food enters from the esophagus using surgical staples to separate it completely from the lower part of the stomach. The rest of the larger, lower part of the stomach is bypassed but not removed from the body.
The lower part of the small intestine is then connected to the new lining of the stomach. The upper part of the small intestine is bypassed in the digestive process. As the natural gastric outlet is located in the severed part of the stomach, it is also bypassed, thus creating a new stomach opening called the mouth at the junction between the new stomach casing and the reconnected small intestine.
Advantages in gastric bypass surgery
- Faster weight loss after surgery than with purely restrictive methods
- The smaller stomach limits the amount of food that can be consumed at any one time
- Intestinal redistribution reduces the amount of calories the body absorbs
- The intake of sweets is controlled due to dumping syndrome
- Resolves and / or improves some obesity-related conditions, such as weight loss
Disadvantages of gastric bypass
- Complicated surgery, surgical risks include infection, leaks, and blood clots
- Deficiencies of vitamins and minerals can lead to metabolic bone disease and anemia
- It can occur with ulcers, intestinal obstruction, or reflux
Dumping syndrome, which can cause nausea, diarrhea, and weakness, occurs when sweets enter the bloodstream very quickly. Gastric bypass can cause rejection syndrome because the digestive system has changed and food enters the intestine faster. Dumping syndrome controls the intake of sweets and high-calorie foods. It is considered both an advantage and a disadvantage of gastric bypass.
Our clinic’s specialist surgeons perform hundreds of successful gastric bypass surgeries every year. How long is gastric bypass surgery? What is the price of gastric bypass surgery? Contact our clinic today if you have more questions.