By LIZ O'RIORDAN FOR THE MAIL ON SUNDAY PUBLISHED: 18:01 EDT, 26 March 2022 | UPDATED: 03:11 EDT, 27 March 2022 The first time I saw CPR being performed was on TV. I was in my teens – it was probably the American medical drama ER. Maybe it was Casualty. There would always be a frantic scene of a medic pumping away at a patient whose heart had stopped. Someone would rush in with defibrillator paddles. Someone else would yell 'CLEAR!' Years later, as a fledgling doctor working on a crash team on hospital wards, I got to see it...