1 Netcare Sunninghill and Sunward Park Hospitals, and Division of Cardiology, Charlotte Maxeke Johannesburg Academic Hospital, School of Clinical Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa. drklug@tickerdoc.co.za.
2 SAEndovascular, Netcare Kuils River Hospital, Cape Town, South Africa. pieter.vanderbijl@gmail.com.