Dr. Salim Omar Al Harthy
Senior Consultant — Gastroenterology & Hepatology
- MD
- MRCP
About Dr. Salim
Dr. Salim is a Senior Consultant Gastroenterologist and Hepatologist and one of the leading figures in his field in the Sultanate of Oman. With more than 25 years of experience, he is known particularly for advanced therapeutic endoscopy — the interventional procedures that allow complex digestive and biliary problems to be treated through an endoscope rather than by open surgery.
His interventional practice includes ERCP for bile duct and pancreatic disease, dilation of strictures, gastrointestinal stenting, and endoscopic removal of large polyps. He has particular expertise in the endoscopic management of complications following bariatric surgery, including mega-stenting for gastric leak after sleeve gastrectomy and dilation of post-sleeve gastric narrowing — demanding procedures that require both experience and specialised equipment, and which spare patients a return to the operating theatre.
Alongside this, Dr. Salim manages the full range of general gastroenterology and liver disease: peptic ulcer disease, gastritis, oesophageal and reflux disorders, biliary and pancreatic conditions, irritable bowel syndrome, colon cancer, and viral, autoimmune, alcohol-related and drug-induced liver disease. He has successfully treated a large number of complex and referred cases over the course of his career.
Dr. Salim qualified in medicine and completed gastroenterology training in Germany, and holds MRCP (UK). He has authored numerous scientific research papers in national and international journals, and is the founder of the Inflammatory Bowel Disease Club in Oman — a body established to improve care, awareness and shared learning for patients living with Crohn’s disease and ulcerative colitis. He consults in Arabic and English.
Advanced & Therapeutic Endoscopy
ERCP — endoscopic retrograde cholangiopancreatography for bile duct and pancreatic disease
Dilation of strictures (narrowing) throughout the gastrointestinal tract
Gastrointestinal stenting
Endoscopic removal of large polyps (advanced polypectomy)
Mega-stenting for gastric leak following sleeve gastrectomy
Dilation of gastric narrowing following sleeve gastrectomy
Diagnostic and therapeutic upper gastrointestinal endoscopy
Diagnostic and therapeutic colonoscopy
Areas of Expertise
Endoscopic management of bariatric surgery complications
Conditions Treated
Digestive system:
Upper and lower gastrointestinal tract diseases
Peptic ulcer disease
Gastritis
Oesophageal disorders, including reflux and swallowing difficulty
Biliary and pancreatic disorders, including gallstones in the bile duct
Colon cancer
Screening, diagnosis and surveillance
Colonic polyps, including large and complex polyps
Irritable bowel syndrome (IBS)
Inflammatory bowel disease
Crohn’s disease and ulcerative colitis
Microscopic colitis
Strictures and narrowing of the digestive tract
Complications of bariatric (weight-loss) surgery
Liver (hepatic) disease:
Viral hepatitis
All causes
Alcohol-related liver disease
Autoimmune liver disease
Drug-induced liver injury
Liver disease in pregnancy
Procedures & Services
Dr. Salim offers non-surgical, endoscopic options for patients seeking help with weight loss, provided as part of a supervised programme rather than as a stand-alone procedure:
Intragastric balloon for weight loss
Gastric Botox (endoscopic botulinum toxin injection)
These procedures are not suitable for everyone. They are offered only after a full medical assessment, alongside dietary and lifestyle support, and outcomes vary between individuals.
Education & Training
MD
Doctor of Medicine
Gastroenterology training in Germany
MRCP (UK)
Frequently Asked Questions
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Dr. Salim in Muscat
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