What is gastric bypass surgery?
Gastric bypass surgery (most commonly the Roux-en-Y gastric bypass) is a procedure which aims to reduce the amount of calories absorbed from your food whilst helping you to feel full after eating smaller meals.
This weight loss procedure works in two ways:
- By restricting the capacity of your stomach, and by
- Bypassing part of your digestive system
Why do people choose to have gastric bypass surgery?
Gastric bypass surgery can help people with obesity lose a substantial amount of weight, after other methods like diet and exercise have failed. Obesity is associated with multitude of health problems and losing weight can also help to reduce them.
Gastric bypass surgery may be appropriate for you if:
- You are morbidly obese (have a BMI of over 40)
- You have a BMI of over 35 and suffer from a condition that poses a serious health risk (e.g. diabetes, heart disease or high blood pressure)
- all appropriate non-surgical measures have been tried but have failed to achieve or maintain adequate, clinically beneficial weight loss
- You are generally fit for anaesthesia and surgery and commit to the need for long-term follow-up.

Benefits of gastric bypass
The main benefit of gastric bypass surgery is its ability to help patients lose a significant amount of weight. Each patient is unique; however there are a number of positive effects of losing weight which are commonly experienced:
- Reduction in the health risks associated with obesity
- Improved health and mobility
- Improved mental wellbeing
- Boost to self esteem and self confidence
What happens during gastric bypass surgery?
Firstly, a small compartment is created at the top of your stomach using staples. A piece of your intestine is then joined to this compartment, which bypasses the rest of your stomach and the upper part of the intestine, where most nutrients and calories are usually absorbed.
The small top part of your stomach fills up quickly with food, giving you a sensation of fullness, and then passes directly to the middle part of your small intestine and through the rest of your digestive system. As the digestive system has effectively been made shorter you should absorb fewer calories.
Is gastric bypass surgery available on the NHS?
NHS funding for this procedure is limited and varies by area. For this reason, many people find that getting a private gastric bypass operation is the best option.
Gastric bypass surgery aftercare
You will normally need to stay in hospital for about three days after the procedure so we can look after you and make sure we are happy with everything before you go home. Our team of dieticians and specialist nurses will look after you throughout your stay and provide support and advice after surgery.
Gastric bypass surgery from Spire Healthcare
With Spire Healthcare you will be treated by an experience bariatric (obesity) surgeon at a time that suits you. You will be treated in a premium private hospital, not a clinic, and you can be assured of our commitment to healthcare standards and infection control excellence. What’s more, you’ll be able to recuperate in your own private room with friends and family able to visit when you wish.
Procedures
Laparoscopic Gastric Bypass Surgery
| Patient pathway |
Initial consultation |
Diagnostic investigations |
Main treatment |
Post-discharge care |
Total |
| Hospital fees |
n/a |
n/a |
£13,495.00 |
n/a |
£13,495.00 |
| Consultant's fees |
£200.00 |
n/a |
Included above |
1 consultation included in main treatment |
£200.00 |
| Guide price |
£200.00 |
£0.00 |
£13,495.00 |
£0.00 |
£13,695.00 |
What's included?
- The prices in the table above (the “Guide Prices”) show what most patients should expect to pay at each appointment and on admission to hospital.
- The Guide Prices you pay might be different depending on:
- Which Consultant or Specialist you choose
- Your medical history
- The type of anaesthetic your Consultant advises is best for you
- The type of implant or drug you choose or your Consultant advises is best for you
- The Guide Prices correct as at the 4 of June, 2013.
- Your price quotation will be made clear to you before you proceed with any tests, consultations or treatment (see the “Your Quote” section below).
- The “Initial Consultation” Guide Price covers your initial appointment with your Consultant or Specialist.
- The “Diagnostic Investigations” Guide Price covers the cost of tests (such as x-rays and blood tests) that most patients need as part of diagnosing your condition and any consultations required to discuss the results. Your consultant might advise that you need additional diagnostic investigations. If this is the case, the hospital will advise you of the prices before you go ahead with them.
- The “Main Treatment” Guide Price covers your stay in hospital as long as your Consultant advises is necessary (but not exceeding 30 days), including all the tests you need, fees for your Consultant and Anaesthetist, nursing care, medication and food during this time.
- The “Main Treatment” Guide Price includes prosthesis (for example, hip or knee implants) from a standard range most commonly used for the Procedure. If your Consultant advises that you need different prosthesis, then the price for your Main Treatment may be different. Your final price quote will be made clear to you before you proceed for treatment (see the “Your Quote” section below).
- The “Post Discharge Care” Guide Price includes your care after you leave hospital, including consultations and physiotherapy visits (up to the number stated), removal of stitches, change of dressings and the medication you need to take home with you for up to 10 days after you leave hospital. Note that some home aids (such as commodes) are not included in the Guide Price.
Your Quote
- Before going ahead with a Procedure, you will need to have an initial consultation with a Consultant or Specialist to talk about your medical history and which treatment you need as part of the Procedure. You will need to pay for this consultation, as well as any associated diagnostic tests (for example x-rays and blood tests) even if you decide not to go ahead with Treatment.
- After each consultation, the hospital will provide you with a price quote for any further tests and treatment. If the quote is different from the Guide Prices for any reason, the hospital will provide an explanation.
- In some cases, if you have certain pre-existing medical conditions, it may not be possible to provide you with a fixed price for your Main Treatment. If this is the case, the hospital will discuss the available options with you.