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Gastric Bypass Surgery > How is Gastric Bypass Surgery Performed

How is the Roux-en-Y gastric bypass performed?

In Roux-en-Y, the stomach is divided, and a small pouch, which limits calories that can be taken in on a daily basis to less than 1,000, is formed as simultaneously the majority of the stomach is sealed off. A portion of the small intestine is then divided and sewn to the newly created small stomach pouch. This process limits the body’s ability to absorb calories. This procedure can be performed as a standard open surgery, or as a laparoscopic surgery.

How is a laparoscopic procedure performed?

Laparoscopic (minimally invasive) surgery involves several very small incisions rather than open surgery, which uses one large incision. Once the patient, who has been given general anesthesia, is asleep, a harmless gas is introduced into the abdomen to move the organs so that the surgeon can work in increased space and can see more when a tiny camera (a laparoscope) is inserted into one incision through a narrow hollow tube (a trocar).

This technique allows the surgeon to view images of the surgery site on a video screen. Then through other trocars inserted into the remaining small incisions, the surgeons introduce and manipulate long narrow surgical instruments that allow performance of the same procedures that take place in traditional open surgeries.

What are the advantages of the laparoscopic approach?

we only use the laparoscopic approach for Roux-en-Y because of the many advantages, including quicker recovery and shorter hospital stays, as well as a significantly reduced risk of wound infection. Patients also report less pain and quicker return to normal activity.

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Dr Clement Tsang
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