SIPS (stomach intestinal pylorus preserving surgery) is a modified version of the duodenal switch, which has been used for the treatment of morbid obesity for 30 years. SIPS combines the benefits of sleeve gastrectomy and intestinal bypass.
Sleeve gastrectomy removes 75% of the stomach resulting in a reduced capacity to eat and a reduced level of ghrelin, the hormone which causes hunger. Intestinal bypass involves dividing the top part of the small bowel (duodenum) just beyond the outlet of the stomach (pylorus), and joining the lower part of the small bowel (ileum) to this top part.
This results in food bypassing part of the small intestine which causes a reduction in the absorption of fats, sugar and calories that are consumed. The amount of the small bowel bypassed can be varied depending on the desired weight loss.
Advantages of the SIPS procedure
Studies show SIPS can provide greater weight loss than either a standard sleeve gastrectomy or gastric bypass. Some other advantages of SIPS includes:
- Combines benefits of sleeve and bypass
- Less risk of dumping and diarrhoea than other bypasses
- Less risk of internal hernia
Disadvantages of the SIPS procedure
- Increased risk of leak as there are two staple lines, one for the sleeve and one for the bypass
- Longer operation and anaesthetic time.
How does Dr Kevin Dolan perform the SIPS procedure?
The SIPS procedure is a three-step process:
- Create sleeve gastrectomy.
- Transect top of small bowel just beyond outlet value of stomach.
- Connect a loop of the lower part of small bowel to the top end of small bowel.
Following your surgery, you will spend two or three days in hospital, and will be administered pain controlling medications to keep you comfortable. For the first two weeks following your surgery, you will be kept on a liquid diet. Your surgeon and dietician will give you a specific diet plan and instructions to follow after this. It is important to drink plenty of fluids throughout the day to avoid dehydration.