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Laparoscopic Sleeve Gastrectomy


  • A laparoscopic sleeve gastrectomy (LSG) is surgery done for obese people to help them lose weight. Obesity is when your body has much more weight from fat than it needs. Having too much body fat puts you at a higher risk of having medical problems, such as diabetes and heart disease. Obesity is a long-lasting problem that may get worse over time. Using your height and weight, your caregiver will learn your body mass index (BMI). Your caregiver uses this measurement to see if you are overweight. You are obese if your BMI is between 30 and 39. A BMI of 40 or more means that you are morbidly (very) obese.
  • LSG is commonly done as a first surgery before a more involved weight-loss surgery can be done. During LSG, a portion of the stomach is removed so that the remaining stomach forms a small tube. Once the stomach is made smaller, you will feel full faster and have a decreased desire for food. LSG also decreases the amount of hormones (body chemicals) in your stomach that increase your appetite. Having LSG will help you lose weight, and you may have more energy. Losing weight may decrease your risk of getting heart problems, diabetes, and certain other diseases.


Take your medicine as directed.

Call your primary healthcare provider if you think your medicine is not helping or if you have side effects. Tell him if you are allergic to any medicine. Keep a list of the medicines, vitamins, and herbs you take. Include the amounts, and when and why you take them. Bring the list or the pill bottles to follow-up visits. Carry your medicine list with you in case of an emergency.

  • Pain medicine: You may need medicine to take away or decrease pain.
    • Learn how to take your medicine. Ask what medicine and how much you should take. Be sure you know how, when, and how often to take it.
    • Do not wait until the pain is severe before you take your medicine. Tell caregivers if your pain does not decrease.
    • Pain medicine can make you dizzy or sleepy. Prevent falls by calling someone when you get out of bed or if you need help.
  • Proton pump inhibitor: This medicine helps decrease the amount of acid that your stomach makes and helps prevent heartburn.

Follow-up visit:

Ask your caregiver when to return for follow-up visits. You will need to talk with your caregiver about your diet and nutrition. You may need blood taken for tests during your visits. Keep all appointments. Write down any questions you may have. This way you will remember to ask these questions during your next visit.

Eat a healthy diet:

You will need to eat a diet low in calories and fat and high in protein. Good protein foods are meat, poultry (chicken and turkey), fish, eggs, nuts, and legumes (peas and beans). Avoid chewy meats because they may be harder for your stomach to digest. Dairy products, such as milk and yogurt, are also good sources of protein. If you are on a pureed (chopped up) diet, you may need to puree your food in a blender or food processor. Eat slowly, and chew your food well before swallowing.

Take a multivitamin:

Take a daily multivitamin as ordered by your caregiver. Ask your caregiver which multivitamin is best for you.

Exercise daily:

Daily exercise can help you burn extra calories and lose weight. Exercising makes the heart stronger, lowers blood pressure, and helps keep you healthy. It is best to start exercising slowly and do more as you get stronger. Do not start an exercise program until you talk with your caregiver first. Together you can plan the best exercise program for you.

Wound care:

Ask your caregiver for information about how to care for your wounds and when to return to have your stitches removed.


  • You have nausea (upset stomach) or vomiting (throwing up).
  • You have a fever.
  • You have new or increased heartburn (burning feeling in your chest or throat).
  • You have questions or concerns about your surgery, medicine, or care.


  • You have new or increased abdominal pain.
  • You have a high fever and shaking chills.
  • Your wounds are draining pus (fluid) or look red or swollen. They may feel warm, painful, or tender (painful when touched).
  • You have chest pain or trouble breathing that is getting worse over time.
  • Your arm or leg feels warm, tender, and painful. It may look swollen and red.
  • You suddenly feel lightheaded and have trouble breathing.
  • You have new and sudden chest pain. You may have more pain when you take deep breaths or cough. You may cough up blood.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Learn more about Laparoscopic Sleeve Gastrectomy (Aftercare Instructions)

Micromedex® Care Notes