The Centre for Aortic Disease at NBHC is led by Dr Zlatko Pozeg.


Our team is made up of surgeons, physicians and specialist radiologists and work together to diagnose, screen and treat patients who have a disease of the aorta.

Dr. Zlatko I Pozeg MD FRCS

Aortic, Endovascular and Cardiac Surgeon

Director Centre for Aortic Disease, New Brunswick Heart Centre

Zlatko Pozeg joined the New Brunswick Heart Centre in 2017.  Dr Pozeg has practised and worked towards evolving the field of Aortic Surgery, having a special interest in aortic dissection and aortic root surgery. In addition, Dr Pozeg has an interest in patients with connective tissue disease whom have a proclivity towards aortic disease, such as Marfan’s Syndrome. Dr Pozeg has a great interest in the endovascular management of all aortic disease from the aortic root to the aortic bifurcation, particular aortic dissection, and believes in the future of total endovascular aortic reconstruction.

Clinical Interests:

Chronic and Acute thoracic aortic pathology, including:

  • Aortic aneurysms
  • Aortic dissection
  • Aortic root surgery
  • Valve sparing root replacement
  • Ross procedure
  • Connective tissue disorders including Marfans Syndrome
  • TEVAR (endovascular management of aortic disease)
  • Aortic valve repair


Dr. Rob Stevenson

Aortic, Endovascular and Cardiac Surgeon

Cardiac Surgery, New Brunswick Heart Centre

Rob Stevenson is originally from Fredericton. He joined the New Brunswick Heart Centre in 2008 after completing his cardiology training at Dalhousie University. His undergraduate studies were in science at UNB. His clinical interests include coronary critical care, echocardiography, cardiac rehabilitation, smoking cessation and therapeutic hypothermia post cardiac arrest

Dr. Brian Archer

Interventional Radiologist

Dr. Archer is part of an interprofessional team that replaces heart valves in patients who have a valve disease called aortic stenosis. The program has helped over 70 patients to achieve a better quality and longer duration of life and reflects a collaboration between cardiologists, radiologists, cardiac surgeons, x-ray technicians and nurses.

Dr. Darren Ferguson

Interventional Radiologist

Dr. Ruairi Meagher

Interventional Radiologist

Dr. Ruairi Meagher is a practising clinician and interventional radiologist in Saint John, New Brunswick. He studied medicine and completed residency at Dalhousie followed by a fellowship in interventional radiology at l’Université de Montréal.

Currently, at the Saint John Regional Hospital in New Brunswick, Dr. Meagher enjoys a wide breadth of diagnostic and interventional practice with particular interests in vascular malformations, interventional oncology, critical limb ischaemia and acute stroke intervention

Dr. Christos Lioupis

Clinical Associate Professor

Vascular Surgeon

Dr Lioupis is a Vascular Surgeon at Moncton City Hospital and assistant professor of Surgery in the Dalhousie University, School of Medicine. He is an experienced surgeon in performing endovascular aortic aneurysm repair. Dr. Lioupis earned his M.D. degree from Aristotle University in Thessalonica, Greece. His experience in Vascular Surgery has been achieved through his core training in Vascular Surgery in the Red Cross Hospital of Athens, and enhanced with fellowship appointments in Belgium, UK and Canada. He has completed 3 fellowships in Vascular and Endovascular surgery:

  • at King’s College Hospital of London, UK (2 years),
  • at St. Blasius Hospital, Dendermonde, Belgium (6 months),
  • at McGill University, Montreal, Canada (1 year).
Since 2014, Dr Lioupis has performed the highest number of fenestrated/branched stent grafts in Maritimes. Dr. Lioupis’ clinical expertise also includes open surgical repair of complex aortic aneurysms and general Vascular Surgery. Research Interests:
  • open and endovascular repair of abdominal aortic aneurysms,
  • thoracoabdominal aneurysms repair,
  • endovascular repair of aortic aneurysms with fenestrated and branched stent-grafts,
  • total endovascular repair of aortic arch diseases,
  • hybrid procedures combining open and endovascular surgery.

Dr. Patrick Omotoso

Vascular Surgeon

Dr. Omotoso received his undergraduate medical education at the University of Ilorin during which he won the University Scholarship, obtained his MBBS and was awarded the prizes for the overall best medical graduate, as well as the best student in Surgery, Obstetrics and Gynecology and Pharmacology in 1988.

He completed his general surgical residency and a subsequent vascular fellowship at the University of Cape Town and Groote Schuur Hospital in South Africa. He did a further year of vascular fellowship at Bournemouth, United Kingdom (UK) and was appointed Consultant Vascular Surgeon at Bedford, UK in 2004. As endovascular surgery continued to expand, Dr. Omotoso took a sabbatical to do an endovascular fellowship at the Cleveland Clinic in Ohio, USA in 2009.

His interest spans the wide and full range of vascular surgery including carotid, visceral and peripheral vascular disease, aneurysm disease; haemodialysis access surgery, thoracic outlet syndrome and treatment of venous disease. He has extensive experience in the endovenous treatment of varicose veins with special interest in the use of radio frequency thermal ablation.

Dr. Omotoso also has extensive experience in the treatment of vein disease and is a caring professional committed to improving the health and well-being of his patients.

Dr. Afzaal Ahmad

Clinical Associate Professor

Vascular Surgeon

Dr. Ahmad has recently joined Horizon Health Network as a Vascular and General Surgeon. He brings a wealth of experience to Saint John. He graduated from the University of Punjab (Pakistan) in 1985. Soon after his internship he moved to England and completed his post graduate training in the United Kingdom. He advanced his vascular training by completing a two year fellowship at Hope Heart Institute (1995-1997) Seattle, WA.

He has been practicing as a consulting surgeon in the United Kingdom for over 10 years, and now he has decided to make Canada his home. Throughout his career he has been closely associated with surgical teaching and is also an examiner in surgery for the Royal College of Surgeons (London.)

New Brunswick Centre for Aortic Disease

© 2020