A Comprehensive Guide To Single Anastomosis Duodenal Switch


Obesity is a complex disease caused by the excessive buildup of fat tissue (adipose) in the body. Generally, obesity is treated as a lifestyle disorder, requiring alterations in diet and inculcating an exercise regime, however, some morbid cases require special attention. This is where advanced bariatric surgical weight-loss solutions are deployed to help patients overcome the discomfort of the highest order. One of these popular surgical solutions is the Single Anastomosis Duodenal Switch or SADI-S. Any surgical bariatric solutions require certain eligibility criteria to be met, which is why it is always advisable to consult your closest reputable bariatric surgeon. Opting for a surgical bariatric process like Single Anastomosis Duodenal Switch can be overwhelming for anyone, to make things a little simple, we present a comprehensive guide for understanding the procedure. Read along!

1.    Overview

Single Anastomosis Duodenal-ileal Bypass with sleeve gastrectomy is abbreviated as SADI-S. It is a modern surgical treatment option for severe obesity that is essentially a variation of the traditional duodenal switch surgery. In this surgical bariatric procedure, a single intestinal bypass is performed rather than two. This weight-loss solution requires less time in surgery and offers a lower risk of complications than other procedures.

2.    Eligibility

It should come as no one’s surprise that surgical weight-loss solutions require certain eligibility criteria to be fulfilled. Contrary to the notion, body mass index (BMI) is not enough for your bariatric surgeon to recommend the surgery for your case. The evaluation of your health condition is very important to check suitability. Generally patients with severe GERD, Barette’s esophagus and major hiatal hernia are not suitable for the surgery. Reach out to a bariatric surgeon providing SADI and SIPs procedure in Dallas and Fort Wort, Tx region and discuss your eligibility.

3.    Procedure

The Single Anastomosis Duodenal Switch procedure is a two-step bariatric weight-loss solution:

  • Step 1: Sleeve Gastrectomy Surgery, also known as Vertical Sleeve Gastrectomy (VSG) or Gastric Sleeve, is the first step in SADI-S. It is a laparoscopic weight-loss treatment in which the surgeon makes several small incisions in the upper belly (each 1 cm or less) to remove around 80% of the stomach, leaving behind a tube-shaped piece about the size and structure of a banana. The treatment aims to aid weight loss by reducing the size of the stomach so that it can only hold a certain amount of food, causing patients to eat less than before. It also alters hormones that control hunger and metabolism, further promoting weight loss.
  • Step 2: The second step involves the detachment of the intestine below the stomach and its reconnection to an intestinal loop roughly 2 meters down.

The aim of the SADI-S procedure is to direct the food to bypass the metabolically active region of the intestine. As a result, the length of the digestive loop through which minerals are absorbed is reduced. Patients have a lower appetite, eat fewer meal amounts, and have physiological changes that improve their metabolism.

4.    Benefits

Reducing weight is not the only benefit that a surgical bariatric solution should offer. When it comes to positives, SADI-S offers:

  • Greater weight loss when compared with regular gastric bypass or gastric sleeve, which is great for those with a BMI above 50
  • Reduced risk of diarrhea and nutritional deficiencies often associated with the duodenal switch
  • Reduced long-term risk of intestinal obstruction(s) when compared with duodenal switch and gastric bypass
  • Flexibility to perform the procedure on patients who have undergone sleeve gastrectomy but experienced insufficient weight loss or a relapse.
  • Reduced risk of issues such as unstable blood sugar fluctuations, dumping syndrome, marginal ulcers, food restrictions, and intolerance, which is usually experienced in gastric bypass surgery
  • Enhanced effectiveness for patients with poorly controlled Type-2 Diabetes as it offers a more observable modification of metabolism levels compared to a standard gastric bypass or sleeve gastrectomy.

When consulting surgeons for SADI-S or any other weight loss surgery, check whether they offer robotic surgery and single incision laparoscopic surgery options as well.

5.    Side Effects

A majority of surgeries run the risk of side effects and the Single Anastomosis Duodenal Switch procedure is no exception. Some of the probable side effects are bile reflux, infection, abscess, intestinal perforation, Venous thrombosis & pulmonary embolism, Anastomotic leaks, and Bowel obstruction in the long term. Though weight-loss surgeons are extremely efficient in handling all such problems, it is still advisable to thoroughly discuss all such probable side effects and related issues with your surgeon.


The Single anastomosis duodenal-ileal bypass with sleeve gastrectomy can be a life-altering surgery for certain patients with morbid obesity or obesity-related health complications. On top of that, surgical bariatric solutions require extensive post-surgical follow-ups and constant diet and malnutrition monitoring. One must be prepared to amend radical lifestyle changes  as well including vitamin supplement dependency. This is why it is always in your best interest to consult a professional bariatric doctor to discuss the ins and outs of your situation, allowing them to suggest the best possible solution to bring down all obesity problems you are dealing with. If you are looking to opt for the SADI procedure in the DFW region, consult an experienced bariatric surgeon and facility that offers all the required machinery and resources to facilitate the smooth execution of the surgery.

Title- A Comprehensive Guide To Single Anastomosis Duodenal Switch

Description- Opting for a surgical bariatric process like Single Anastomosis Duodenal Switch can be overwhelming for anyone, to make things a little simple, we present a comprehensive guide for understanding the procedure. Read on!

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