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Your first discussion with a surgeon should clearly set out your expectations and whether the operation can give you the results you desire.
Careful discussions regarding the reasons for wanting a weight loss surgery and your suitability for this type of surgery are very important at this stage. Make sure that you obtain as much information as is necessary to enable you to make a fully informed choice and make sure you receive satisfactory answers to all your questions.
A medical history should also be taken to make sure that there are no reasons why you shouldn’t have this operation. You would normally be asked to sign a consent form which means that you have understood the potential benefits and risks associated with weight loss surgery.
Photographs and weight measurements will also be taken by the practitioner as a "before and after" comparison at a later date.
The surgeon may also wish to write to your G.P. giving details of the operation so that if there are any problems associated with surgery in the short or long-term your doctor is aware of the procedure and can help you to recover.
Anaesthesia
Bariatric surgeries are performed under a general anaesthetic, and can either be performed as an “open” surgery requiring a large incision across the abdomen, or more commonly these days they are done via keyhole, or laparoscopic methods which only need five or six small incisions at various places on the chest and abdomen, through which cameras and surgical instruments are fed.
Please take into account that a general anaesthetic carries more potential risks the higher your BMI is and with any obesity related illnesses that you may have – this should be clearly explained by the surgeon before you make any decisions about the type of surgery you are undergoing.
The operation
If you make a decision to go ahead with bariatric surgery (most likely privately), the actual procedure may take place in a small private hospital or in an NHS hospital as a private patient, as depending on the complexity of your particular operation some surgeons may prefer to be in a larger hospital with specialist care on hand, should they be needed.
Operation time
The time taken to carry out the various weight loss surgeries detailed below depends on the extent of work required by the surgeon, and whether the procedure is carried out openly or laparoscopically (which takes a surgeon longer), and is broken down approximately in the table below.
Type of Operation
Approx. Length of Operation Time
Gastric Banding
30 minutes – 1 hour
Gastric Bypass (Roux-en-Y)
1 - 2 hours
Duodenal Switch (with Biliopancreatic Diversion)
5 – 7 hours
Intragastric Balloon
20 – 30 minutes