Weight loss surgery

Whether you opt for laparoscopic gastric banding or a sleeve gastrectomy, we’ll support you in your weight loss journey to make a positive change for a healthier future.

Expertise Image

Surgery can open the door to a positive future, for many people struggling with weight loss. If you want to reduce the health risks of being overweight and gain the benefits of increased life expectancy and mobility, we offer both laparoscopic gastric banding and sleeve gastrectomy. And you’ll experience the highest quality care in our newly built, bespoke weight-loss surgery unit.

What are the health effects of being overweight?

Today, everyone’s aware that being overweight or obese isn’t just about how you look. Over time, it means that you have an increased risk of developing the following health problems:

  • Type 2 diabetes
  • Coronary heart disease
  • Stroke
  • Breast or bowel cancer
  • Obstructive apnoea
  • High blood pressure
  • Osteoarthritis
  • Asthma
  • Gallstones
  • Liver and kidney disease

If you have a BMI of between 35* and 50 and need help to lose weight, you have five main options for treatment. The effectiveness of each of these options will depend on your individual problem and things like your general health and lifestyle.

1. Lifestyle changes
This option is a good starting point and involves making changes to diet, doing exercise and altering other lifestyle habits. It’s something you can do on your own or with the aid of a self-help support group.

2. Weight-loss programmes
These programmes support you by providing a structure to your weight-loss plan. They set out an eating pattern, give dietary advice and can provide you with an exercise regime.

3. Psychological treatments
These treatments address your thoughts, feelings and actions towards yourself and your relationship with food, eating and exercise.

4. Medication
Your GP may be able to prescribe one of the new range of weight-loss medicines.

5. Weight-loss surgery
There are operations designed to change how much food you eat. The type of surgery depends on individual circumstances, clinical situations and preferences. As a rule, surgery is only considered when other weight-loss options haven’t worked.

* Patients can access the service with a BMI of 30 if they are an adult with type 2 diabetes.

Most candidates for weight-loss surgery have already tried some or all of the first four treatment options listed above. Your consultant will discuss how effective each of these weight-loss methods has been for you, to help you decide if surgery is an option.

No surgeon recommends or agrees to surgery lightly, and weight loss surgery is no different. The surgery is not just an operation to cure a problem; it’s a choice you make to improve your life expectancy and enhance your lifestyle. However, once that choice is made, weight-loss surgery has been shown to have some remarkable results and long-lasting beneficial effects.

We currently offer two laparoscopic surgical options:

Laparoscopic gastric band procedure

The principle of the gastric band is to limit the size of the stomach and restrict the ability to eat more than a certain amount of food while giving a sensation of fullness.

Using keyhole surgery, an inflatable band is inserted and placed to sit around the top of the stomach, just below the gullet, and locked into place. The stomach is then restricted by inflating the band through a tube.

The benefits are that 1) you can expect to lose around 50% of your excess weight, 2) it’s the least invasive method, 3) there’s a quick recovery and 4) surgery is reversible.

Laparoscopic gastric sleeve procedure

A sleeve gastrectomy is also performed by keyhole surgery but involves removing a large portion of the stomach. This leaves behind a smaller ‘sleeve’ of stomach that holds less and restricts the amount of food that you can eat before feeling full.

It’s a restrictive procedure that doesn’t require long-term follow-up or adjustment. Most patients have rapid weight loss within the first year and then hit a plateau. This procedure is non-reversible.

Gastric balloon

A gastric balloon is inserted by endoscopy into the stomach. It is filled with a fluid and can be left internally for up to six months when it is removed with a scope. It is non-surgical, minimally invasive and non-permanent.

The Elipse™ balloon

This is an effective alternative for patients that are looking for a safe and effective weight loss treatment that is minimally invasive and non-surgical, with no endoscopy or anaesthesia. 

The balloon is placed during a 20 minutes procedure and no overnight stay is required. A capsule is swallowed in a 20 minute outpatient session and filled with water via a fine tube. The tube is then removed and the balloon stays in the stomach for four months until it self-empties until being excreted naturally.

As with other gastric balloon procedures, this creates a constant feeling of fullness, allowing you to eat less without the hunger that accompanies most diets.  The food you do eat stays in your stomach longer, reinforcing the feeling of fullness and enabling you to eat less without feeling hungry.

This is a temporary weight loss aid. The body will adjust to smaller food portions helping you to continue with healthy eating habits

Weight loss surgery is a lifestyle choice and our supportive bariatric team will help you to meet your weight loss goals, achieve the best possible outcome and maintain healthy habits that you can continue throughout life.


The prices listed below are fully inclusive of dietetic and psychological support in line with NICE guidelines. Some patients feel that to achieve their goal they need additional psychological support during their treatment.

For prices, click here to visit our price list page.


Both laparoscopic gastric banding and sleeve gastrectomy surgery offer a permanent and lifelong commitment to weight loss. Many patients find they have increased mobility and see a positive impact on their day-to-day wellbeing.

Surgery has also been shown to bring benefits other than weight loss, with significant numbers of diabetic patients being cured of type 2 diabetes following surgery. Other research shows that surgery can reduce hypertension, obstructive apnoea, the chance of heart disease as well as some cancers.

But to achieve a healthy weight and sustain it in the future, takes more than a single operation. That’s why we offer a full package of support from our specially-trained and compassionate staff, including sessions with our counselling team and dietitians both pre and post surgery.

A gastric balloon, including the Elipse balloon,  is a non-surgical alternative to gastric banding and sleeve gastrectomy.

Self-paying patients
If you're interested in coming to Benenden Hospital for your weight-loss treatment, and you'd like to discuss your options or book a consultation, please call 01580 242 521. We will be happy to give you an all-inclusive no-obligation quote once we fully understand your individual needs.


Gastric sleeve

A sleeve gastrectomy is performed as laparoscopic surgery and works by removing a large portion of the stomach. Unlike gastric band surgery, it is a non-reversible procedure

Gastric band

Gastric band surgery is a method of controlling body weight and offers a permanent solution when supported by a lifelong commitment to weight loss. A gastric band may be suitable if you have found it difficult to lose weight through diet or by medications and is used to reduce stomach size so a smaller amount of food is required to make you feel full

Gastric balloon

A gastric balloon is inserted by endoscopy into the stomach. It is a filled with fluid and can be left internally for up to six months when it is removed with a scope.

Consultant headshot

Mr Ahmed Hamouda

Consultant Surgeon
Weight loss surgery enquiries

You can access weight our weight loss surgery services at Benenden Hospital as a self-funding patient or as a discounted self-paying Benenden member. This service is not available to NHS patients.

You can access weight our weight loss surgery services at Benenden Hospital as a self-funding patient or as a discounted self-paying Benenden member. This service is not available to NHS patients.