Endoscopic Sleeve Gastroscopy Treatment London

What is Endoscopic Sleeve Gastroscopy or ESG ?

Endoscopic Sleeve Gastroscopy or ESG is a minimally invasive and relatively new weight loss treatment. It reduces stomach capacity by up to 70% and is more commonly known as a gastric sleeve or non-surgical gastric sleeve.

The treatment is popular due to its effectiveness and patients benefit from long-term sustainable weight loss results without a long and painful recovery period. Dr Haidry is a highly experienced endoscopist able to safely perform this procedure. It is a lower risk option for people looking at surgical weight loss surgeries as it is minimally invasive. Patients must still commit to a healthy diet and lifestyle for the surgery to be a success and it should not be considered an “easy option”.

Questions and Appointments

For any enquiries about conditions, tests or treatments, please feel free to call Dr Rehan Haidry’s medical secretary Debra Hyams.

Understanding Endoscopic Sleeve Gastroscopy treatment

Patients looking for a Endoscopic Sleeve Gastroscopy treatment in London can arrange an appointment with Dr Haidry to discuss a weight loss solution. ESG is performed using an endoscope that is fed through the mouth and into the stomach. It is usually recommended for patients with a BMI of 30 or higher.

Patients who have been unable to effectively lose weight through diet and exercise alone may consider ESG as their next option. Booking a consultation with Dr Haidry’s team is a chance to discuss your situation in a non-judgemental environment and you can make an informed decision whether the procedure is for you.

How does Endoscopic Sleeve Gastroplasty work?

Endoscopy Sleeve Gastroplasty reduces the size of the stomach. This means smaller portions of food will leave the patient feeling full. This can help in losing weight in a sustainable and manageable way.

ESG is carried out under general anaesthetic and the endoscope is passed into the stomach with a specialised stitching device attached. The tiny camera on the endoscope allows the doctor to see inside your stomach and use the stitching device to create a small size. The stitches change the structure of the stomach, so it resembles a tube. It mimics a traditional gastric sleeve without the need for invasive surgery.

ESG usually takes around 90 minutes. Patients are often able to go home the same day with the aftercare guidance suitable to their individual circumstances.

What happens after an ESG procedure?

As mentioned, patients usually go home the same day but need to remain nil by mouth for up to eight hours.

Patients will initially require a liquid diet for around two weeks and then semi-solid foods can be introduced. In time, a regular healthy diet is fine, but patients should be aware of their smaller appetite.

A commitment to a healthier lifestyle must go hand in hand with ESG for it to be a success.

Benefits of ESG?

ESG has many benefits when compared with regular surgery, with the main ones to consider including:

  • No large abdominal scars
  • Shorter recovery period
  • No need to stay in hospital
  • Less pai
  • Safer
  • Less invasive
  • Minimal risk of infection

Your care team will ensure you are made aware of all risks, but most patients see the benefits of an endoscopic procedure over traditional surgery.

Endoscopic Sleeve Gastroscopy treatment London with Dr Rehan Haidry

Dr Rehan Haidry is an experienced endoscopist, well versed in the ESG procedure. He and his team can work with you to discuss your options and help decide whether this procedure is the best choice for you.

Contact his office today to book an appointment.


Why do we need an alternative to surgery for patients who are overweight in the United Kingdom?

There is a growing need for therapy for patients who are overweight and obese, as in the UK, 27% of adults have been diagnosed with obesity, body mass index of 30 kg/m2 or more. Obesity is associated with increased morbidity and mortality. Weight loss reduces obesity-linked co-morbidities with greater weight loss leading to greater health improvement. Lifestyle interventions are the cornerstone of reducing body weight but rarely lead to more than 3% weight loss. Currently, there are limited drugs available that show significant and sustained weight loss. In contrast bariatric surgery, leads to marked sustained weight loss with improvement in health and improved life expectancy

According to NICE guidance bariatric surgery should be considered as a treatment option for people with a body mass index (BMI) of 40 kg/m2 or more or people with a BMI of 35 kg/m2 or more with an obesity-associated co-morbidity. NICE guidance was updated in 2014 stating that people with type 2 diabetes (T2D) of recent onset (within 10 years) with a BMI of 35 kg/m2 or more should have an expedited referral for consideration for bariatric surgery. In addition, people with a BMI between 30 and 34.9 kg/m2 could also be considered. However, access to surgery is extremely limited with less than 1% of eligible people accessing surgery. These patients exist within the bariatric service at present with limited options other than medical therapy which is not often the solution.

What is this new procedure and how does it work?
The endoscopic sleeve gastroplasty (ESG) is a novel technique which has already been widely implemented in the USA, Mainland Europe, Australasia and South America although less frequently in the UK. This procedure allows a reduction of the capacity of the stomach and may also exert effects through reducing the exposure of gastric cells to nutrients thereby affecting hormonal release which in turn controls appetite and satiety. It is carried out in the endoscopy unit with existing endoscopic equipment and deep sedation.

In an Endoscopic Sleeve Gastroplasty, the doctors creates a narrow pouch, or sleeve within your stomach, using an endoscope (a camera which passes from your mouth into your stomach. This reduces the size of your stomach with the aim of helping you to lose weight. ESG uses the Apollo Endosurgery OverStitch Device, which allows the endoscopist to perform plications (stitches) along the greater curvature of the stomach, creating a reduction is the volume of the stomach similar to a sleeve gastrectomy seen in surgery.

The procedure involves an upper endoscopy and a subsequent application of sutures to the greater curve of the stomach to reduce the capacity of the stomach. The procedure aims to reduce the size of your stomach by about 70%. This means food stays in your stomach for longer making you feel more full and for longer.

This will be used in patients with obesity who are either unable to undergo bariatric surgery or who would not be willing to do so. The procedure is carried out in endoscopy under full anesthesia by Dr Haidry and his team. All our patients will need to come through a bariatric Multi disciplinary team and be counselled by dieticians and endocrinologists at the London Clinic to ensure we look after all their needs before and after the procedure.


Here is short animation of the procedure to show who the sutures work in the stomach.

In addition, if you have the procedure you will have special dietary advice given to help you lose weight and reduce risk of problems after the procedure. Below you will find some more detailed information on the potential benefits of the procedure, the procedure itself and the risks and alternatives to the procedure. Please do ask our team if there is anything which is not clear or which you would like more information about.

What are the potential benefits of losing weight for people with obesity?

For people with obesity, losing weight can significantly improve the symptoms of diseases like heart disease, diabetes, high blood pressure and joint and sleep problems. In addition, losing weight can reduce the risk of these diseases happening at a later stage. Having a lower weight can also improve the life expectancy of people with obesity.

People considering these sorts of procedures need to be committed to making permanent changes to their eating habits and lifestyle. The procedure is very much the start of the treatment.

Who is suitable for this procedure?

The decision of the suitability for the procedure has to be made by Dr Haidry and also an experienced team as this may not be suitable for everyone with obesity. At present the ESG is offered to these patients:

  • They have a BMI (body mass index) of 40-45kg/m2 – you can find a calculator for this at: https://www.nhs.uk/Tools/Pages/Healthyweightcalculator.aspx
  • They have a BMI of 35-45 kg/m2 and a health problem like diabetes or sleep apnoea which would be improved by losing weight
  • They have tried to lose weight through other methods over a prolonged period of time without success
  • They are aged over 18 years old
  • They do not have another medical or psychological condition which makes them unsuitable for the procedure
  • They are able to have a general anaesthetic
  • They do not smoke
  • They are committed to long term follow up and dietary advice
How much weight will I lose with the ESG?

Weight loss after the operation is initially very swift but this will settle down after the first few weeks. It is important not to compare your weight loss with any other patient as it is very individual. There may be some weeks in which your weight loss slows down or stops and this is perfectly normal.

On average, people can lose up to 30% of their excess weight in the first 6 months after having an ESG. Recent data from the USA published in May 2019 show that after 5 years ESG is effective in achieving durable significant total body weight loss of 15%. Maximum weight loss is generally achieved by 24 months after the procedure, after which patients tend to regain a small amount of their lost weight.

Please make an appointment to meet with Dr Haidry If you are interested in ESG.

Get In Touch

For any enquiries about conditions, tests or treatments, please feel free to call Dr Rehan Haidry’s medical secretary Debra Hyams on:

Tel: 0203 423 7609  |  Email: rhaidrymedsec@ccf.org