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Gastric Bypass

Frequently Asked Questions about Gastric Bypass

How much weight can I expect to lose?

On average we expect gastric bypass patients to lose around 70% of their excess weight. Obviously some people will do better and some not as well as this.  

Will I have pain after the operation?

Yes. There is invariably some discomfort following the gastric bypass operation, the main source for which is the  port entry sites which are made through the abdominal wall and through which the operating  instruments and camera were passed. In addition you may experience some left shoulder pain  after gastric bypass, which may be an effect of the gas (carbon dioxide) used to inflate the abdomen. But overall, pain is not a marked feature and whatever discomfort does occur,  usually responds well to simple painkillers.

How soon can I drive after the operation?

You should not drive for 2-3 days after your operation to allow the effects of the anaesthetic and any  post-operative analgesia (painkillers) to wear off. Thereafter you may find driving a little  uncomfortable until the port sites have fully healed – usually around 10 days.

How long will I be off work?

This depends upon what you do for a living, but if you have a sedentary occupation you can  generally expect to be back at work about 2 weeks after gastric bypass, after which time the wounds should have  healed and you will be feeling more comfortable.  If you have a physically demanding job involving lifting etc, you may need a little longer. The bowel and stomach inside your abdomen  will be healed in around 6-8 weeks, so during this period it is important that you follow the  nutritional guidelines as closely as you can. 

What about scars following surgery?

Generally there is minimal scarring. The operating ports are placed in  the abdomen through 5 narrow (0.5 cm) incisions which are sutured and/or glued and will  normally heal in about 10-14 days. The scars should fade gradually.  Some  individuals have a greater tendency to form keloid which may result in thicker and more  prominent scars. 

What about medication?

Usually, you will be able to continue with your regular medication after a gastric bypass operation. However, if your tablets are  very large, it may be necessary to break them up (most good chemists will have a little contraption to do this easily). Try them first.  If you feel they are sticking, you can crush them up and take with a spoonful of yoghurt.  Before doing this, however, you should check with the pharmacist that this is OK. Some tablets are  specially formulated to be released slowly or coated to protect the stomach and these properties  may be destroyed if you crush them. Capsules should not be a problem because they are soft  and designed to soften and melt inside the stomach. 

When do I need to start taking vitamin and mineral supplements?

We recommend that you wait until the second month after surgery (on soft foods) before starting supplements.  Of course, it is absolutely essential for you to take vitamin and mineral supplements for life after bypass surgery. We strongly recommend VitaWeight™  which have been specially formulated for surgical weight loss patients. Without supplementation deficiencies of iron, folic acid, vitamin B12, calcium, zinc and vitamin D can occur, resulting in anaemia and bone disease such as osteoprosis. 

What about physical activity?

Regular physical activity is very important in achieving your weight loss goals. You will be given specific information and advice about physical activity after  surgery, but to begin with we recommend walking.  As you become fitter you may wish to try more strenuous forms of activity and there is no exercise that must be  excluded because of your surgery. 

Is it safe to have other surgical procedures following gastric bypass?

Yes. It is usually perfectly safe to have other surgical procedures, assuming they do not involve  the upper part of the stomach or digestive tract.  Obviously it is essential for you to inform your surgeon and anaesthetist about your previous bypass surgery.

Will I be constipated?

Possibly.  As you eat less the amount of residue (especially fibre) in your diet falls and your bowel activity will decrease. If you do become constipated, there are plenty of effective remedies which  can deal with the problem. You will be given advice about this later. 

What happens if I become pregnant?

There are several reasons why gastric bypass surgery has a positive impact on pregnancy and  childbirth. Firstly, as you lose weight your fertility increases and you are much more likely to  conceive (if you don’t want to get pregnant you need to be aware of this!). Secondly, losing  weight will result in a significantly lower risk of complications both for you and the baby. And  lastly, your weight loss will allow you to be much more active both during and after pregnancy which will greatly increase your enjoyment of what should be a very happy period in your life. Healthier Weight will give you all the help, advice and support you need should you become pregnant following a gastric bypass operation.

Can I drink alcohol?

Yes – in moderation. Alcohol has a high calorific value (7 kcal/gram) and can provide a lot of  unwanted calories so you need to pay attention. However, there are health benefits to of moderate alcohol intake and some evidence to suggest it may even enhance weight loss. So we are quite happy for you  to have the equivalent of one unit of alcohol per day. [NB. 1 unit of alcohol = half pint  of normal strength beer, half a standard (175ml) glass of wine or small single measure of  spirits]. 

Can I eat anything in moderation?

Yes.  You may eat most foods that don't cause you discomfort. However, because you can only  eat small amounts, it is important to include foods rich in protein but low in fat and  sugar. We encourage you to eat vegetables, fruit, wholegrains, lean meat and fish. You will  be provided with detailed nutritional information following your gastric bypass surgery.

What about air travel?

There is no reason why you should not travel as normal following gastric bypass surgery. If you are intending to travel within 6-8 weeks after the procedure, you should check with your airline to  establish what their policy would be. 

Is it possible to regain weight after a gastric bypass?

Yes. There is evidence to show that weight regain can occur following gastric bypass, usually because patients return to old eating habits. It is important to remember that the Roux-en-Y gastric bypass (RYGBP) is not a “cure” for your weight problems, but a powerful  tool that  can be very effective in helping you to manage your weight more effectively.  But if you live on  “junk” food and don’t bother being physically active, you can certainly put weight back following  bypass (following any weight loss procedure actually).  So the message is “eternal vigilance” –  there are no days off with weight management!

Does the bypass always work?

No.  Every medical treatment has a failure rate and the Roux-en-Y gastric bypass (RYGBP) is no exception.  A proportion of  bypass patients will fail due to a variety of reasons, including an inability to comply with the  nutritional requirements, physical inactivity or a failure to attend for follow-up. They can  also run into trouble if they fail to take the prescribed vitamin and mineral supplements. However, if you  are really determined to get a good outcome, most of the reasons for failure can be overcome. 

Will I need cosmetic surgery to get rid of excess skin?

Possibly. The amount of lax skin depends upon your age and weight before your procedure. Generally, the heavier and older you are, the more likely you are to have lax skin. Younger patients have a greater degree of natural elasticity in the skin, so there is a lot of re-modelling as weight loss progresses. The most common need is to have  the abdominal apron removed, though some patients have more extensive “body-contouring”. Whatever your inclination, you should wait two years before making any decisions about cosmetic surgery. It is imperative that any corrective surgery be done by a specialist surgeon. If you are interested in  cosmetic surgery, please contact us and we will arrange a consultation with our  own bariatric cosmetic specialist.

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