Mr Theivacumar qualified from the University of Colombo, Sri Lanka in 1999. He undertook a research degree on minimally invasive varicose veins treatment and completed MD degree from the university of Leeds. He underwent higher surgical training in Yorkshire, Canterbury and London, during which time he gained vascular specialist training in both open and endovascular treatments at King’s College Hospital and St Thomas Hospital, London. He has completed advanced vascular specialist fellowship on endovascular treatment in Melbourne for one year (2014). He is published widely in vascular surgery and acts an invited reviewer for the Phlebology, Journal of vascular surgery and the European Journal of Vascular & Endovascular Surgery. He has presented his research works internationally on respected academic meetings. He also published his research works on novel vascular surgical techniques. Mr Theivacumar was appointed as Consultant Vascular and Endovascular Surgeon at London North West University Hospitals in 2015 and he is now the deputy clinical director of vascular and interventional surgery at West London Vascular and Interventional Centre, London North West University Hospitals since 2017. He is also an Honorary Senior Lecturer at Imperial College. His clinical interests include aortic aneurysm, carotid artery disease for TIAs/stroke, peripheral arterial disease (claudication and leg ischemia), diabetic foot management (including complex wound management), venous disease (including modern treatment of varicose veins, deep vein thrombosis (DVT), venous ulcer, pelvic congestion and post-thrombotic limb), lymphoedema, and vascular thoracic outlet syndrome.