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  • My bariatric surgery

    Is this procedure for me?

    The goal of bariatric surgery is to reduce the possible adverse effects of morbid obesity in patients who have made many unsuccessful attempts at weight loss. Informed consent

    • Smoking cessation
    • Diet changes
    • Exercise

    Your surgeon will decide on the best type of surgery for your situation. The benefits of bariatric surgery are mainly improvements to health problems, such as diabetes, high blood pressure, obstructive sleep apnea and arthritis, along with a better quality of life. 

    Eligibility for bariatric surgery

    You are only eligible for bariatric surgery if you meet the following criteria:

    1- Your body mass index (BMI) exceeds 40 kg/m2


    Your BMI exceeds 35 kg/m2and you have one or more obesity-related conditions: diabetes, sleep apnea, high blood pressure, arthritis

    2- You have tried to make changes to your lifestyle and willpower

    • Quitting smoking, drugs and alcohol
    • Changing your diet
    • Exercising
    • Balancing your mental health
    • Taking vitamins the rest of your life
    • Getting blood tests and regular medical check-ups

    Video on the bariatric surgery pathway (in French only)

    This video is for people who are considering bariatric surgery. Watch it to learn more about the benefits and risks associated with the two types of bariatric surgery performed at the CISSS de Laval. We also want you to know what the surgery entails and what to expect before and after.

    Surgical approaches

    Bariatric surgery is often performed laparoscopically. This means that the surgeon makes small incisions (cuts) in the belly to insert a camera and the surgical instruments. The abdomen is filled with air so that there is enough space for the surgeon to work with the instruments. Everything is captured by the camera and shown on a video screen.

    Bariatric surgery can also be done by laparotomy, although this is more rare. This procedure involves making a traditional 10 to 20 cm incision (either horizontal or vertical) in the abdominal wall.

    Vertical sleeve gastrectomy

    Vertical sleeve gastrectomy

    A vertical sleeve gastrectomy involves reducing the size of the stomach to about the size of a banana. The stomach is sutured with staples that will be absorbed by the new tissue that will form around them.

    Because your stomach is smaller, you’ll feel full faster and you won’t be able to eat the same amount of food as before.

    Gastric bypass (“Roux-en-Y”)

    Gastric bypass (“Roux-en-Y”)

    A gastric bypass reduces the stomach to about the size of an egg. The new, smaller stomach is connected to the middle portion of the small intestine, which means that not as many calories or nutrients from food will be absorbed through the digestive tract. However, most of the stomach is preserved and releases digestive juices that are discharged lower down into the intestine. You should expect to lose about 70% of your excess weight within a year after the operation.

    Video on the two types of bariatric surgery offered at the Hôpital de la Cité-de-la-Santé (in French only)

    Learn more about the two types of surgery available at the hospital: vertical sleeve gastrectomy and gastric bypass.

    Registering for the surgery

    You must have a referral from your family doctor with your full name, BMI, weight, height and obesity-related conditions. Your referral must be FAXED to the centralized appointment centre at 450-975-5350.