Por qué es un doctor de primer nivel/Professional statement/Perché è un dottore di prim’ordine
Dr John Martin is a highly-experienced gastroenterologist and endoscopist based in London and holds an NHS Consultant post at Imperial College (ICL). He is an expert in colorectal cancer screening, therapeutic and diagnostic colonoscopy and has 25 years' experience of managing all aspects of gastroenterology including abdominal pain or discomfort, reflux disease, diarrhoea and constipation, rectal bleeding, irritable bowel syndrome, Crohn’s disease and ulcerative colitis.
Graduated from Cambridge University and King’s College Hospital, London in 1990, Dr Martin completed his gastroenterology training within North West London. In 2002, he was awarded an MD from the University of London in bowel cancer screening and became a consultant at Chelsea and Westminster Hospital before joining Charing Cross Hospital in 2006. Dr Martin refined his skills in colonoscopy to ensure they are always safe, high-quality and comfortable for his patients.
Dr Martin teaches colonoscopy both within the NHS Trust and also at national screening centres. He is a bowel cancer screening accredited colonoscopist and an examiner for BCSP colonoscopy accreditation. He has authored numerous peer reviewed publications.
Dr Martin is director of the West London Bowel Cancer Screening Centre; he is the national advisor to Public Health England on endoscopy within the Bowel Cancer screening service and chairs the national advisory committee on quality and safety of endoscopy within screening. He forms an integral part of numerous other professional bodies and has been widely published in peer-reviewed journals.
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Abdominal pain
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Acid reflux
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Barrett's oesophagus
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Bloated stomach
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Blood in stool (rectal bleeding)
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Bowel cancer
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Bowel cancer screening
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Capsule endoscopy
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Chronic diarrhoea
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Coeliac disease
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Colic
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Colitis
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Colon cancer
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Colonoscopy
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Colorectal cancer
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Constipation
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Crohn's disease
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Diarrhoea
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Digestive diseases
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Diverticular disease
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Dysmotility
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Dysphagia
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Eating disorders
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Endoscopic mucosal resection (EMR)
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Endoscopic ultrasound (EUS)
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Endoscopy
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Epigastric hernia
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Food allergies
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Food intolerance
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Food intolerance test
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Gastric balloon
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Gastric band
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Gastric bypass
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Gastrointestinal bleeding
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Gastrointestinal endoscopy
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Gastroscopy
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Halitosis
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Helicobacter pylori
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Hepatic encephalopathy
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Hiatal hernia
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Incisional hernia
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Indigestion (dyspepsia)
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Inflammatory bowel disease (IBD)
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Iron deficiency
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Irritable bowel syndrome (IBS)
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Lactose intolerance
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Lactose intolerance test
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Liver cancer
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Malnutrition
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Morbid obesity
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Nutrition
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Obesity
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Oesophagitis
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Pancreatic cancer
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pH monitoring
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Piles (haemorrhoids)
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Polypectomy
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Polyps
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POSE procedure
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Rectal cancer
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Rectosigmoidoscopy
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Stomach cancer
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Stomach reduction
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Stomach ulcer
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Ulcerative colitis
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Weight loss
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Bupa Cromwell Hospital8 Pennant Mews W8 5JN - London (Central London)(+44) 02078989995
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OneWelbeck Digestive Surgery1 Welbeck St W1G 0AR - London (Central London)(+44) 02078989995
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Colon cancer: what to watch out for and what can be done

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How is colon cancer diagnosed?

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Ulcerative colitis: an expert on the causes, management and treatment. - Online interview
