Gastric bypass vs duodenal switch

gastric bypass vs duodenal switch

Gastric Bypass vs Duodenal Switch

Can you have a duodenal switch after gastric bypass?

 

Individuals who are considering bariatric surgery for weight loss have multiple options. From gastric bypass surgery to Duodenal Switch surgery to gastric sleeve, each type of surgery has its own benefits and risks. 

When deciding which surgery is right for you, it is essential to compare your options. You should understand the similarities and differences between the two types of bariatric procedures. When reviewing Gastric Bypass vs Duodenal Switch, there are a number of factors to consider:

 

Comparison chart

 

Surgery Type

Duodenal Switch

Gastric Bypass

Method of Weight Loss

Restrictive & Malabsorptive

Restrictive & Malabsorptive

Stomach Alterations

  • 70% of stomach is removed (4-5 oz / 120-150 cc)
  • New stomach is created: Stoma (1 oz /20-30cc)

Changes to Intestine

  • New stomach is “switched” to last 6 feet of the small intestine
  • The stoma is rerouted to lower part of intestine (3 to 5 ft)

Operating Time

  • 4 hours
  • 2.5 hours

Average Hospital Stay

  • 3 days
  • 2 to 3 days

Full Recovery Time

  • 4 to 6 weeks
  • 4 to 6 weeks

 

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Comparison between Duodenal Switch and Gastric Bypass Surgery

What is Gastric Bypass Surgery?

Gastric bypass is a restrictive and malabsorptive weight loss surgery procedure. It restricts the amount of food you can eat and reduces the number of calories (and nutrients) you absorb from food. The Roux-en-Y Gastric Bypass – often called gastric bypass – is considered the ‘gold standard’ of weight loss surgery.

If you have high blood pressure or type 2 diabetes, gastric bypass surgery can make these conditions better, or even make them clear up completely. Up to six in 10 people with diabetes who have a gastric bypass find their sugar levels go back to normal after six years. Weight loss surgery may also make joint problems and breathing disorders, such as sleep apnea, better.

 

What is Biliopancreatic Diversion with Duodenal Switch (BPD/DS)?

The Biliopancreatic Diversion with Duodenal Switch – abbreviated as BPD/DS – is a procedure with two components. First, a smaller, tubular stomach pouch is created by removing a portion of the stomach, very similar to the sleeve gastrectomy. Next, a large portion of the small intestine is bypassed.

Comparing the procedure

How Gastric Bypass is performed

Gastric bypass, also called Roux-en-Y gastric bypass or RNY for short, is performed using the following steps:

. Cut and staple the top portion of the stomach to create a small pouch at the end of the esophagus.

. Leave the remainder of the stomach attached to the top of the small intestines.

. Go further down the small intestine, cut it, and attach it to the pouch.

. Take the end of the small intestine that is still connected with the non-pouch portion of the stomach and attach it to the bottom of the “Roux limb.” This allows the digestive juices produced by the stomach to “meet up” with the food in the intestines.

 

 

How Duodenal Switch is performed

The first step is sleeve gastrectomy in which about 80 percent of the stomach is removed, leaving a smaller tube-shaped stomach, similar to a banana. However, the valve that releases food to the small intestine (the pyloric valve) remains, along with a limited portion of the small intestine that normally connects to the stomach (duodenum).

The second step bypasses the majority of the intestine by connecting the end portion of the intestine to the duodenum near the stomach. A BPD/DS both limits how much you can eat and reduces the absorption of nutrients, including proteins and fats.

 

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Comparing the Advantages and Disadvantages

Gastric Bypass Advantages:

. Produces significant long-term weight loss (60 to 80 percent excess weight loss)

. Restricts the amount of food that can be consumed

. May lead to conditions that increase energy expenditure

. Produces favorable changes in gut hormones that reduce appetite and enhance satiety.

 

Duodenal Switch Advantages:

. You will lose up to 70% of your excess weight within a year

. Allows patients to eventually eat near “normal” meals

. Causes favorable changes in gut hormones to reduce appetite and improve satiety.

. Duodenal switch surgery will cure or improve your diabetes, sleep apnea, hypertension, and at least 12 other conditions.

. You will feel full sooner while eating

. Your body will absorb fewer calories from the food you eat.

 

Gastric Bypass Disadvantages:

. Is technically a more complex operation than the AGB or LSG and potentially could result in greater complication rates.

. Can lead to long-term vitamin/mineral deficiencies particularly deficits in vitamin B12, iron, calcium, and folate.

. Not reversible

. Requires adherence to dietary recommendations, life-long vitamin/mineral supplementation, and follow-up compliance.

. Dumping Syndrome is Common

 

Duodenal Switch Disadvantages:

. Requires a longer hospital stay than the AGB or LSG

. Has a greater potential to cause protein deficiencies and long-term deficiencies in a number of vitamin and minerals, i.e. iron, calcium, zinc, fat-soluble vitamins such as vitamin D.

. Compliance with follow-up visits and care and strict adherence to dietary and vitamin supplementation guidelines are critical to avoid serious complications from protein and certain vitamin deficiencies.

. More frequent bowel movements.

 

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Comparing the Risks and Complications

Gastric Bypass Risks and Complications:

. Breakage

. Dumping syndrome

. Gallstones (risk increases with rapid or substantial weight loss)

. Hernia

. Internal bleeding or profuse bleeding of the surgical wound

. Leakage

. Perforation of stomach or intestines

. Pouch/anastomotic obstruction or bowel obstruction

. Protein or calorie malnutrition

. Pulmonary and/or cardiac problems

. Skin separation

. Spleen or other organ injury

. Stomach or intestine ulceration

. Stricture

. Vitamin or iron deficiency

 

 

Duodenal Switch Risks and Complications:

Risks associated with BPD/DS include:

. Excessive bleeding

. Infection

. Adverse reactions to anesthesia

. Blood clots

. Lung or breathing problems

. Leaks in your gastrointestinal system

Longer term risks and complications of a BPD/DS may include:

. Bowel obstruction

. Dumping syndrome, causing diarrhea, nausea or vomiting

. Gallstones

. Hernias

. Low blood sugar (hypoglycemia)

. Vitamin deficiency/ Malnutrition

. Stomach perforation

. Ulcers

. Digestion issues

. Sagging skin

. Weight Regain

 

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Who is a good candidate?

Is a gastric bypass right for me?

You may be eligible for gastric bypass surgery if:

. Your BMI (body mass index) score is 40 or more.

. Your BMI is 35 or more and you have other medical conditions such as type 2 diabetes or high blood pressure that may be improved by losing weight.

. You are fit enough to have a general anaesthetic and surgery.

. You are committed to losing weight and maintaining your weight loss through lifestyle and gastric bypass diet changes.

. You have tried to lose weight in other ways such as eating healthily, exercising and taking relevant medicines.

 

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Is a Duodenal Switch right for me?

You may be eligible for Duodenal Switch surgery if:

. You have a body mass index (BMI) of 40 or more, OR

. Your BMI is between 35 and 39.9 and you have a serious obesity-related health problem

 

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How long does each procedure take?

Gastric bypass

The operation can take between two and three hours, but this may vary between surgeons.

Duodenal Switch

The operation can take between three and four hours, but this may vary between surgeons.

What can I expect during recovery?

Gastric bypass

Your gastric bypass recovery will include:

. Timeline: 4 to 6 weeks to full recovery

. Hospital Stay: 2 to 3 days

. Time Off Work: 1 to 3 weeks

. Pain: Same as after any laparoscopic surgery, managed with medication

. Diet: Slow transition from clear liquids to solid foods

. Activity: Slow transition back to regular activity and exercise

. Challenges: Dumping syndrome, digestive issues & weight regain if you “cheat” on your diet, potential dental issues, gallstones, kidney stones, & short-term hair loss, and sagging skin from rapid weight loss.

Duodenal Switch

. Hospital Stay: You will be in the hospital for 2 to 3 days

. Time off Work: You will need to take 1 to 3 weeks off of work

. Full Recovery: You will be “fully recovered” in 4 to 6 weeks

. Pain: The pain is manageable – it’s the same as any laparoscopic surgery and managed with medication.

. Diet & Activity: There will be a slow transition from clear liquids to solid foods and back to regular activity and exercise.

 

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Diet

Gastric bypass

. Patients must eat three small meals a day.

. Patients must avoid sugar and fats to prevent Dumping Syndrome.

. Patients must take vitamin and protein supplements to avoid deficiency (Multivitamin, Calcium, Vitamin B12, and Iron for menstruating women)

Duodenal Switch

. Patients must eat three meals/day.

. Patients must strictly adhere to protein and vitamin supplements to avoid deficiencies. (Multivitamins, ADEK vitamins, Calcium, and Iron for Menstruating women).

Due to the extent of malabsorption after duodenal switch surgery, you will need to take 10 to 15 pills per day for the rest of your life. If you stop taking any prescribed vitamins, you will be twice as likely to develop vitamin deficiency.

Comparing cost

Gastric bypass

The cost of Gastric Bypass in Iran is between $ 3000-3500.

Factors such as the surgeon’s location, credentials, and the type of facility where the procedure is being performed all impact the final cost.

Duodenal Switch

The cost of Duodenal Switch in Iran is between $ 3200 - 3700.

Factors such as the surgeon’s location, credentials, and the type of facility where the procedure is being performed all impact the final cost.

 

1Can I have duodenal switch after gastric sleeve?
The duodenal switch, a combination of the gastric sleeve and a bypass of the intestines, however, has demonstrated the best weight loss. ... Now, when sleeve patients require more weight loss, we can complete the duodenal switch.
2Is gastric sleeve or bypass better?
You should work alongside your doctor to choose the best weight loss procedure for you. Gastric bypass patients lose between 50 to 80 percent of excess bodyweight within 12 to 18 months, on average. Gastric sleeve patients lose between 60 and 70 percent of their excess body weight within 12 to 18 months, on average.
3What is the safest form of weight loss surgery?
A sleeve gastrectomy is a simpler operation that gives them a lower-risk way to lose weight. If needed, once they've lost weight and their health has improved -- usually after 12 to 18 months -- they can have a second surgery, such as gastric bypass.
4How much weight can you lose with a duodenal switch?
50 pounds Two years after surgery, duodenal switch patients had lost more weight: about 50 pounds more, on average. People shed a substantial amount of weight with either type of surgery. Gastric bypass patients cut an average of 111 pounds, while duodenal switch patients dropped about 162.
5Is duodenal switch reversible?
Duodenal switch surgery is not reversible, and some people may have complications after the surgery. One of the complications of duodenal switch surgery includes protein, vitamin and mineral deficiencies.
6Can a gastric sleeve be redone?
In some cases, a second surgery to repair — or redo — a gastric bypass may be appropriate. ... Because of these risks, gastric bypass surgery usually isn't redone if you regain weight because of poor diet or exercise habits.
7How quickly will I lose weight after gastric sleeve?
If you've had gastric bypass surgery, you will have lost about 30% to 40% of excess body weight. With gastric banding surgery, you lose 1 to 2 pounds a week -- so by six months, you'll have lost 25 to 50 pounds. Nine Months Post-Surgery.
8What is the most successful weight loss surgery?
The three types of surgery included gastric bypass, sleeve gastrectomy and adjustable gastric banding (also known as lap band). The study found that gastric bypass surgery boasted the greatest weight loss -- both short- and long-term.
9How much weight will I lose after gastric sleeve?
How much weight do people lose after gastric sleeve weight loss surgery? People generally lose 60% of their extra weight over 12 to 18 months. So if you are 100 pounds overweight, you'll lose about 60 pounds, though some lose more and others less.
10How can I reduce my stomach fat?
20 Effective Tips to Lose Belly Fat (Backed by Science) Eat Plenty of Soluble Fiber. ... Avoid Foods That Contain Trans Fats. ... Don't Drink Too Much Alcohol. ... Eat a High-Protein Diet. ... Reduce Your Stress Levels. ... Don't Eat a Lot of Sugary Foods. ... Do Aerobic Exercise (Cardio) ... Cut Back on Carbs, Especially Refined Carbs.

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