Por qué es un doctor de primer nivel/Professional statement/Perché è un dottore di prim’ordine

Dr Aathavan Loganayagam trained in medicine at Guy’s, King's and St. Thomas’ medical schools. He then underwent rigorous structured specialty training in gastroenterology and general internal medicine in the well respected South London training programme.

He then spent two years during postgraduate training as a research and endoscopy fellow at Guy’s and St Thomas’ Hospitals, London. His research was in the fields of pharmacogenetics, inflammatory bowel disease and gastrointestinal malignancy. He has received awards and grants for outstanding research work, including the prestigious NHS Innovation London Award.

Dr Loganayagam has numerous publications in peer reviewed journals on all aspects of gastroenterology. He is actively involved in clinical research. He has particular local expertise in the practice of personalised medicine and the utilisation of novel therapeutic agents in the treatment of complex inflammatory bowel disease. He is currently the lead clinician for endoscopy at Queen Elizabeth Hospital, Woolwich.

Diagnostic and advanced therapeutic endoscopy remains a major part of his clinical expertise, including assessment and treatment of inflammatory bowel disease, strictures, polyps and cancers.

Dr Loganayagam is an approachable doctor who takes pride in his communication skills with patients. He is keen to ensure that patients are fully informed and involved in all aspects of their care.

Especialista en

Bowel cancer

What is it? Bowel cancer, also known as colorectal cancer, originates from the development of tumour cells in the mucosa of the bowel. Given th...


What is it? Endoscopy is the use of cameras to relay images from inside the body.  Th...

Indigestion (dyspepsia)

What is indigestion? Indigestion, also medically referred to as dyspepsia, is a pain in the upper abdomen...

Inflammatory bowel disease (IBD)

What is inflammatory bowel disease (IBD)? Inflammatory bowel disease (IBD) a medical term used to describe a group of diseases that cause &...

Irritable bowel syndrome (IBS)

What is irritable bowel syndrome? Irritable bowel syndrome (IBS) is a functional disorder of the large intestine....


What is a colonoscopy? A colonoscopy is a type of ...

Enfermedades, Pruebas y Tratamientos

  • Abdominal pain
  • Abdominal ultrasound
  • Achalasia
  • Acid reflux
  • Alcoholic liver disease
  • Alcoholism
  • Anal fissure
  • Ascites
  • Autoimmune hepatitis
  • Barrett's oesophagus
  • Biopsy
  • Bloated stomach
  • Blood in stool (rectal bleeding)
  • Bowel cancer
  • Bowel cancer screening
  • Bowel incontinence
  • Capsule endoscopy
  • Cholelithiasis (gallstones)
  • Chronic diarrhoea
  • Cirrhosis
  • Coeliac disease
  • Colic
  • Colitis
  • Colon cancer
  • Colonoscopy
  • Colorectal cancer
  • Constipation
  • Crohn's disease
  • Diabetes
  • Diarrhoea
  • Digestive diseases
  • Diverticular disease
  • Diverticulitis
  • Drug induced liver injury
  • Dysmotility
  • Dysphagia
  • Eating disorders
  • Endoscopic mucosal resection (EMR)
  • Endoscopy
  • Fatty liver
  • FibroScan
  • Food intolerance
  • Food intolerance test
  • Gastric balloon
  • Gastric band
  • Gastric bypass
  • Gastrointestinal bleeding
  • Gastrointestinal endoscopy
  • Gastroscopy
  • Halitosis
  • Helicobacter pylori
  • Hepatic encephalopathy
  • Hepatorenal syndrome
  • Hiatal hernia
  • Indigestion (dyspepsia)
  • Inflammatory bowel disease (IBD)
  • Iron deficiency
  • Irritable bowel syndrome (IBS)
  • Lactose intolerance
  • Lactose intolerance test
  • Liver
  • Liver biopsy
  • Liver cancer
  • Liver cyst
  • Liver disease
  • Liver function tests
  • Malnutrition
  • Morbid obesity
  • Nutrition
  • Obesity
  • Oesophageal manometry
  • Oesophageal varices
  • Oesophagitis
  • Pancreatic cancer
  • Pancreatitis
  • pH monitoring
  • Piles (haemorrhoids)
  • Polypectomy
  • Polyps
  • POSE procedure
  • Primary biliary cholangitis (PBC)
  • Primary sclerosing cholangitis (PSC)
  • Rectal cancer
  • Rectosigmoidoscopy
  • Second medical opinion
  • Short bowel syndrome
  • SIBO
  • Stomach cancer
  • Stomach flu
  • Stomach reduction
  • Stomach ulcer
  • Ulcerative colitis
  • Ultrasound
  • Viral hepatitis
  • Virtual colonoscopy
  • Vitamin D deficiency
  • Vomiting

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Valoraciones de pacientes


Es un servicio de mensajería privada y videoconferencia que te permite realizar una consulta médica conmigo en cualquier momento y lugar./A private messaging and video conference service that allows you to contact the best doctors at any time and place./È un servizio di messaggistica privata e videoconferenza che ti permette di contattare i migliori medici in ogni momento e in qualsiasi luogo.



Bile acid malabsorption: symptoms and treatment
If there is an excess build-up of bile acids in your colon, it can lead to a condition known as bile acid malabsorption, which unfortunately can cause bloating and gas. Sounds like symptoms of irritable bowel syndrome? We asked consultant gastroenterologist Dr Aathavan Loganayagam how the conditions compare and how BAM is treated.
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5 possible reasons for unexplained weight loss
Normally, we are most concerned with weight gain as opposed to worrying about weight loss. But just when does losing weight become too much and what does it mean especially if it's unintentional? We spoke to one of our expert gastroenterologists Dr Aathavan Loganayagam about the possible illnesses that can lead to unexplained weight loss.
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Digestive enzyme supplements: do they really work?
Perhaps you've been doing some research into supplements that can help alleviate symptoms of bloating and constipation related to gastrointestinal conditions such as irritable bowel syndrome. We asked one of highly-experienced London gastroenterologists Dr Aathavan Loganayagam for his expert opinion as to whether any of the digestive enzyme supplements out there on the market really do work or not.
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