Laparoscopic Gastric Bypass (1)

 Gastric bypass is by far the most effective weight loss surgery for obese as well as diabetic patients with a success rate of over 80%. Gastric bypass is a combination of restrictive and malabsorptive weight loss surgeries. It reduces stomach volume and appetite while bypassing the duodenum to reduce calorie absorption in order to achieve significant weight loss. However, patients are required to take vitamins regularly and undergo regular checkups to prevent the risk of anemia.  

 

Procedure of Laparoscopic Gastric Bypass

Laparoscopic gastric bypass is suitable for patients with a BMI over 40. A liquid diet is suggested two weeks before the surgery. No food is allowed on the day before the surgery. Performed under general anesthesia, 4 to 5 small incisions will be made on the abdomen, each being 1-2 cm in diameter, so that laparoscopic instruments could be inserted. Gastrectomy will then be performed to reduce stomach volume by 20-30ml.

The ileum will then be connected to the stomach, bypassing the duodenum. The remaining part of the stomach will remain in the body for secreting gastric juices for iron and calcium absorption. The surgery takes around 2-3 hours. Patients have to be hospitalized for 4-5 days but may move around after surgery. Patients are advised to maintain a liquid diet for the first two weeks after surgery, and then progress to a puree diet. One month later, normal diet can be resumed. However, patients need to follow dietitians’ advice and exercise regularly, as well as undergo regular follow ups for effective weight loss.

Reference information: http://www.obesitysurgery.com.hk/english.html

The information aims to provide educational purpose only.  Anyone reading it should consult Surgery Specialist before considering treatment and should not rely on the information above.

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Laparoscopic Sleeve Gastrectomy (2)

Laparoscopic Sleeve Gastrectomy (2)

 

 

Benefits of laparoscopic sleeve gastrectomy

• Obvious weight loss: ~70-80% of the stomach will be removed thus significantly reduce stomach volume and induce a much earlier sense of satiety.
• Effective diabetic control: with the reduced stomach volume and changes in hormones, such as increasing glucagon-like peptide-1 (GLP-1) and peptide YY (PYY) for diabetes treatment that is stimulated by faster stomach emptying.
• Reduced appetite: There is an immediate reduction in levels of the appetite stimulating hormone – Ghrelin, thus significantly reduce patient’s hunger sensation and appetite.

Risks of laparoscopic sleeve gastrectomy

• Low risk: overall mortality risk is <1%.
• Irreversibility: once the greater curve of the stomach is removed, normal stomach anatomy cannot be reinstated.
• Heartburn: patients may experience a higher incidence of reflux / heartburn following surgery. 

Reference information: http://www.obesitysurgery.com.hk/english.html

The information aims to provide educational purpose only.  Anyone reading it should consult Surgery Specialist before considering treatment and should not rely on the information above.

Laparoscopic Sleeve Gastrectomy (1)

 Want to have a better control of eating volume without the need to avoid various foods? Laparoscopic sleeve gastrectomy, a restrictive minimally invasive laparoscopic surgery, is the most widely performed weight loss surgery in Asia. By reducing the stomach size, patients will feel a sense of fullness much earlier, and thereby substantially reducing the volume intake.

Besides more effective weight loss, this surgery is effective in diabetic treatment with a remission rate of almost 70%. This surgery can significantly suppress the secretion of Ghrelin – a powerful appetite stimulating hormone. Patients recover quickly from surgery and are able to return to their daily activities in a short period of time. In order to achieve your target body weight, patients will have regular follow up with Dr. Wong and his team of allied health specialist (including dietitian and physiotherapist).

Procedure of laparoscopic sleeve gastrectomy

This surgery is indicated for patients with BMI over 30. Two weeks prior to surgery you are instructed to have only fluid diet and milk supplements. The surgery is performed under general anesthesia. Dr. Wong will make 4-5 small (1-1.5cm) incisions and remove 70-80% of the stomach in order to create a ‘banana’ shaped stomach. The entire procedure last for about one and half hours and patients will be discharged from hospital 3-4 days after surgery.

After your surgery, fluid and congee diet must be maintained within the first month in order to allow for good wound healing. After then, a “new” normal diet can be resumed. All patients must follow dietitians’ advise to ensure effective weight loss.


       

Reference information: http://www.obesitysurgery.com.hk/english.html

The information aims to provide educational purpose only.  Anyone reading it should consult Surgery Specialist before considering treatment and should not rely on the information above.