About Aruchuna Ruban
Specialty: consultant gastroenterologist with particular expertise in bloating, abdominal pain, diarrhoea, constipation, irritable bowel syndrome (IBS) and rectal bleeding
Conditions seen: irritable bowel syndrome (IBS), inflammatory bowel disease (IBD), acid reflux and gastro-oesophageal reflux disease (GORD/GERD), chronic constipation, chronic diarrhoea, changes in bowel habit, small intestinal bacterial overgrowth (SIBO), stomach pain
Tests, treatments and procedures: gastroscopy, colonoscopy, flexible sigmoidoscopy, point-of-care stool testing, gut microbiome testing, nutritional therapy
Often consulted by patients with: bloating, abdominal pain, diarrhoea, constipation or rectal bleeding
Patient ages seen: 18+
Also: honorary senior lecturer at Imperial College; training programme director for foundation year 1 doctors at Imperial College Healthcare; PhD in metabonomics, obesity and diabetes research
Language: English
Dr Aruchuna Ruban is a consultant gastroenterologist at Welbeck's Digestive Health centre in London, specialising in the investigation and treatment of digestive symptoms, including bloating, abdominal pain, diarrhoea, constipation and rectal bleeding. He treats a wide range of gastrointestinal conditions, including irritable bowel syndrome (IBS), inflammatory bowel disease (IBD), acid reflux and gastro-oesophageal reflux disease (GORD/GERD), chronic constipation, chronic diarrhoea and small intestinal bacterial overgrowth (SIBO).
Dr Ruban offers a range of investigations to identify the causes of digestive symptoms, including gastroscopy, colonoscopy and flexible sigmoidoscopy. These procedures use a thin, flexible camera to examine different parts of the digestive tract. He also provides gut microbiome testing, which analyses the microorganisms living in the gut, and point-of-care stool testing, which can provide rapid results without the need to send samples to an external laboratory. Nutritional therapy is also available to support the management of digestive conditions.
Dr Ruban completed his medical degree at Imperial College London in 2007, followed by a Master's in Medical Education at University College London in 2014 and a PhD at Imperial College London in 2019. In 2021, he received the Integrated Healthcare Scholarship from the International Federation for the Surgery of Obesity and Metabolic Disorders.
Alongside his clinical practice, Dr Ruban is an honorary senior lecturer at Imperial College London and training programme director for foundation year 1 doctors at Imperial College Healthcare, where he supports the education, training and supervision of doctors at the beginning of their careers.
Expertise
- Bloating
- Abdominal Pain
- Diarrhoea
- Constipation
- Irritable Bowel Syndrome
- Rectal Bleeding
Overview
- Age of patients seen
- 18+
- Qualifications
Dr Ruban completed his medical degree at Imperial College London in 2007. He went on to complete a Master's in Medical Education at University College London in 2014, and was awarded a PhD by Imperial College London in 2019 for his work on metabonomics, obesity and diabetes research.
Qualifications:
Medical degree, Imperial College London (2007)
MSc Medical Education, University College London (2014)
PhD, Imperial College London (2019)
- Languages spoken
- English
- Online profiles
- Research highlights
Dr Ruban has been lead author on several research papers published in respected medical journals and has experience running clinical trials. His research focuses on obesity, type 2 diabetes and digestive health, including treatments that can help improve blood sugar control and support weight loss. His published work includes a major clinical trial investigating a device placed in the small intestine to help manage obesity and type 2 diabetes, as well as research into the use of endoscopy in weight management and the diagnosis and treatment of gastroparesis, a condition in which the stomach empties too slowly.
His PhD research at Imperial College London explored how changes in the body's metabolism relate to obesity and diabetes. In 2021, he received the Integrated Healthcare Scholarship from the International Federation for the Surgery of Obesity and Metabolic Disorders.
Key publications:
Duodenal-jejunal bypass liner for the management of type 2 diabetes and obesity: a multicenter randomized controlled trial. Ann Surg. 2022;275(3):440–447. DOI: 10.1097/SLA.0000000000004980
Bariatric surgery and the endoscopist. Frontline Gastroenterol. 2021;12(7):683–689. DOI: 10.1136/flgastro-2020-101681
The effect of a duodenal-jejunal bypass liner on lipid profile and blood concentrations of long chain polyunsaturated fatty acids. Clin Nutr. 2021;40(4):2343–2354. DOI: 10.1016/j.clnu.2020.10.026
A duodenal sleeve bypass device added to intensive medical therapy for obesity with type 2 diabetes: a RCT. Efficacy and Mechanism Evaluation. 2020;7(6). DOI: 10.3310/eme07060
Pathophysiology, aetiology and treatment of gastroparesis. Dig Dis Sci. 2020;65(6):1615–1631. DOI: 10.1007/s10620-020-06287-2
- Professional memberships
British Society of Gastroenterology
Royal College of Physicians
Higher Education Academy (Fellow)
- Certifications and Awards
Integrated Healthcare Scholarship, International Federation for the Surgery of Obesity and Metabolic Disorders (2021)
Consultations and services
Appointments are available at 1 Welbeck Street, London W1G 0AR.
Enquire online or call 020 3653 2009.
- Self-pay available from £275
- Health insurance
- 30 mins consultation
- Self-pay available
- Health insurance
- 15 mins consultation
Insurers covered
Tests & treatments
Conditions & symptoms
Locations
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Frequently asked questions
You can see Dr Ruban if you're experiencing a range of digestive symptoms such as bloating, abdominal pain, diarrhoea, constipation, changes in bowel habit or rectal bleeding. These symptoms can have several possible causes, so it's important to understand what's behind them. Dr Ruban will discuss your symptoms and medical history, assess your condition and recommend any investigations needed to help reach a diagnosis.
These are all examinations that use a thin, flexible camera to investigate different parts of the digestive system. A gastroscopy examines the oesophagus (food pipe), stomach and first part of the small intestine by passing the camera through the mouth. A colonoscopy examines the whole of the large bowel, while a flexible sigmoidoscopy looks at the rectum and lower part of the large bowel. Both involve passing the camera through the rectum. Dr Ruban will explain which test is most appropriate for you based on your symptoms and medical history.
Gut microbiome testing involves analysing a stool sample to look at the bacteria and other microorganisms living in your digestive tract. Dr Ruban may offer this as part of a wider assessment of your digestive health or if you're experiencing persistent symptoms such as bloating, abdominal pain, constipation or diarrhoea. The test involves collecting a stool sample at home and sending it to a laboratory for analysis. He also provides point-of-care stool testing, which can give rapid results without sending samples to an external laboratory. Dr Ruban can explain your results and recommend appropriate next steps, which may include dietary changes, lifestyle advice or further investigations.
Yes. Dr Ruban can assess and treat small intestinal bacterial overgrowth (SIBO), a condition in which excessive bacteria grow in the small intestine. SIBO can cause symptoms such as bloating, abdominal pain, excessive wind, diarrhoea and sometimes constipation. As these symptoms can overlap with other digestive conditions, including irritable bowel syndrome (IBS), it's important to establish the underlying cause.
Dr Ruban will discuss your symptoms and medical history and may recommend investigations, such as a breath test, to help confirm a diagnosis. Depending on the findings, treatment may include antibiotics, dietary changes and nutritional support to help manage symptoms and reduce the risk of recurrence.