Welcome to the website of

Professor Mark E. O'Donnell


Consultant Vascular and Endovascular Surgeon, Belfast Health and Social Care Trust, Northern Ireland.

Sport and Exercise Sciences Research Institute, Faculty of Life and Health Sciences, Ulster University, Northern Ireland.

Constantly Innovating to Deliver Excellence in Vascular Care


Professor O'Donnell attended Medical School at the Queen's University of Belfast in Northern Ireland between 1994 and 1999 where he graduated with distinction combined with the award of the Northern Ireland Medico-Legal Prize for Forensic Medicine. He undertook his surgical training as a Specialist Registrar on the Northern Ireland Surgical Training Rotation between 2006 and 2015. He has completed both a Masters in Medical Science and a Medical Doctorate in research where he has established a prolific research pedigree with over 100 publications in PubMed Indexed Peer-Reviewed journals and more than 250 international and national presentations combined with many prestigious awards including the Society of Vascular Surgery International Scholar Award, Society of Academic Surgery Research Prize and Belfast City Hospital Young Investigator of the Year.

Completion of a Vascular Surgery Fellowship and appointment as an Assistant Professor of Surgery at the World-Renowned Mayo Clinic in the United States between 2012 and 2014 not only complemented his vascular surgery skills but facilitated endovascular proficiency in many minimally invasive treatments for complex arterial and venous disease. He passed the FRCS Exit Examination at first attempt in 2012 and was recently awarded first place in the European Board of Vascular Surgery Examination in 2015.

He is a regular surgical tutor at the Royal College of Surgeons England and and is Moderator of the Northern Ireland Higher Vascular Teaching Program.

Thank you for visiting my webpage which I hope provides a combination of patient focused information as well as educational and research based content for medical colleagues.

Treatments Provided

  • Minimally invasive endovenous (catheter) treatment of varicose veins under local anaesthetic
  • Open operative surgery for varicose veins
  • Sclerotherapy for varicose veins
  • Carotid surgery for prevention of stroke
  • Open and endovascular aortic aneurysm surgery
  • Minimally invasive and open bypass surgery for complex circulatory problems
  • Diabetic foot disease salvage
  • Thoracic outlet syndrome treatment

Latest News

22nd August 2017
Professor O’Donnell continues to provide safe outcomes for abdominal aortic aneurysm and carotid endarterectomy procedures.
Click here for Professor O’Donnell’s Consultant Outcome Data from the National Vascular Registry.

11th August 2017
Commencement of the Northern Ireland Higher Vascular Teaching Program in August
2017 - Click here for Program

Patient Feedback

"Thank you for all you did to save my leg. It was a long drag but only for you I’d have given up".
SP May 2018

"With gratitude for your kindness, gentleness, encouragement and medical skills in extending my life".
SR April 2018

"Really appreciate you looking after my daughter – she was in good hands".
LB March 2018

Clinical Practice

Royal Victoria Hospital
Grosvenor Road
Belfast BT12 6BA
Phone: 02890 635936

Kingsbridge Private Hospital
811-815 Lisburn Road,
Belfast BT9 7GX
Phone: 028 9066 7878

NorthWest Independent Hospital
Church Hill House, Main Street
Ballykelly BT49 9HS
Phone: 028 7776 3090

The Newry Clinic
Windsor Avenue
Newry BT34 1EG
Phone: 028 3025 7708

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