Sleeve Gastrectomy

Private Gastric Sleeve Surgery in the UK

The Sleeve Gastrectomy with Allure

A sleeve gastrectomy, also known as a gastric sleeve, results in food entering a newly sized stomach which will then follow a normal digestive path. This differs distinctly from a Roux-en-Y Bypass. This medical weight loss procedure is typically performed laparoscopically through small incisions in the upper abdominal area. During the operation, the surgeon will look to remove around 75% to 80% of your total stomach.

The surgery itself typically lasts up to 4 hours, and patients stay overnight in one of our clinics. When it comes to gastric sleeves, full recovery can be expected around 6 weeks, although this can vary patient-to-patient. All patients should expect to take 1 – 2 weeks off from work. 

All procedures are undertaken by our handpicked GMC registered Consultants and are followed up by 2 years of aftercare with Bariatric Nurses and HCPC registered Dietitians. 

We hold our surgeries from Allure clinics in Manchester, Derby, and North London. Any bariatric surgery should be carefully considered, and our specialists will be on hand to provide all the necessary information. 

GMC Registered Bariatric Consultant Surgeons

Allure Consultant Mr Brij Madhok
Mr Brijesh Madhok
Mr Javed Sultan, consultant bariatric surgeon
Mr Javed Sultan
Mr Periyathambi Jambulingam
Mr Periyathambi Jambulingam
bariatric surgery in manchester, oaklands hospital


Oaklands Private Hospital, 12 Lancaster Road, Salford, M6 8AQ
Bypass, Sleeve

Entrance to Derby private health clinic. Light green wall, sign, and two plants.


Uttoxeter New Road
Derby, DE22 3NE
Bypass, Sleeve

Is a Sleeve Gastrectomy Right for Me?

A sleeve gastrectomy looks to reduce the chances of several life-threatening weight-related health problems, including heart disease, high blood pressure, cancer, type 2 diabetes, and obstructive sleep apnea. This could be an option for you if you have been struggling with obesity for a while and haven’t been able to lose weight through traditional methods.

Generally not advised for those with conditions such as acid reflux, Barrett’s oesophagus and oesophageal dysmotility.

consultant greeting a patient at the clinic

History of the Gastric Sleeve

The sleeve gastrectomy, or gastric sleeve, was first introduced in 1988 in order to treat obesity, and originally functioned as the first of a two-step procedure that included the gastric bypass. Due to the success of the procedure, however, the sleeve gastrectomy has been offered as a stand-alone bariatric procedure since 2003.  

Associated Risks

As with any surgery, there are risks associated with the sleeve gastrectomy. These include excessive bleeding, infection, blood clots, and leaks from the cut edge of the stomach. During your initial consultation, the Bariatric Consultant will discuss all related risks in depth and be able to answer any questions you may have.

Gastric Balloon Consultants Crossing Arms

How to Prepare

Along with ensuring that you take any medication, you will have restrictions on your eating and drinking right before the operation. This is also a good time to plan for your recovery, which may take several weeks due to the nature of the surgery itself. For instance, arrange help getting home, or even care for children or pets.

What to Expect

With a sleeve gastrectomy conducted in one of our private bariatric clinics, you may be required to stay for one or two nights depending on your recovery. During surgery, you will be given general anaesthesia in order to ensure you are comfortable. The surgery itself takes one to two hours to complete. In the aftermath of the surgery, you should expect rapid weight loss, but also initial body aches, feeling tired, and mood changes as you adjust.

We only work with the highest-level bariatric consultants who perform the sleeve gastrectomy. They are all leaders in their field, so rest assured your consultant is at the top level. These include:


Being a life-changing surgery, the sleeve gastrectomy requires some alterations to diet and lifestyle in order to ensure your health and weight loss improves. For the first seven days you will be on a sugar-free, noncarbonated liquid diet, and then slowly move on to pureed foods for three to four weeks. You will be able to enjoy regular food at around 4 weeks.

You will also be required to take vitamins, including the vitamin B-12 injection once a month, for life.

Gastric Sleeve Aftercare

Don’t worry, you won’t be left to your own devices after surgery. You will be privy to 2 years of Aftercare from Allure Weightloss Specialists. This includes regular contact with a Bariatric Nurse and HCPC Registered Dietitian as standard. This is to help encourage those essential and necessary lifestyle changes to ensure the sleeve gastrectomy works as intended.

Enquire Today

If you are interested in a sleeve gastrectomy, get in touch with the medical weight loss specialists at Allure Weight Loss today.

Frequently Asked Questions

You must have a minimum BMI of 35 or a BMI of 30 if you are struggling with existing comorbidities. Speak to our specialists for more information.

Gastric sleeves are considered safe procedures, and can be lifesaving. 

Typically, patients can look to lose around 65 -70% of excess weight in the year after gastric sleeve surgery. 

The Allure Weightloss Gastric Sleeve Aftercare Programme is comprised of access to your GMC registered Consultant, Bariatric Nurse, and HCPC registered Dietitian for up to 2 years. 

It is possible to regain a little weight even after a gastric bypass. With the help of our dietitians, you will work on implementing the necessary lifestyle changes to keep it off. 

A gastric sleeve, or sleeve gastrectomy, is the process of removing up to 80% of the stomach in order to limit food consumption and reduce hunger hormones. 

The Roux-en-Y Gastric Bypass involves creating a smaller 'pouch' from your stomach and attaching it to your intestines, bypassing the main body of your stomach.  You can find out more online here

The most widely used measurement for obesity. The BMI approximates body mass using a mathematical ratio of weight and height [(weight in kg ÷ height in meters) or (weight in pounds ÷ height in inches x 703)]. A BMI of 30 or more is regarded by most health agencies as the threshold for obesity. A BMI of 40 or more generally qualifies as morbid obesity. However, note that BMI measurements in body-builders and athletes may not be accurate determinants of obesity because the BMI does not distinguish between muscle and fat.

  • Blood clots
  • Internal bleeding
  • Gallstones
  • Hernia
  • Skin separation
  • Leakage
  • Vitamin or iron deficiency
  • Perforation of stomach or intestines
  • Stricture