John Maytham speaks to Dr Jean Vorster, a cardiologist practising at Netcare Unitas Hospital, about a first in South Africa. Dr Vorster and a team successfully implanted a tiny leadless pacemaker, a fraction of the size of a AAA battery, in a patient’s heart.

Tags John Maytham, cardiologist, Netcare Unitas Hospital, Dr Jean Vorster, implanted, leadless pacemaker, AAA battery, heart