Fig. 1From: Increasing venoarterial extracorporeal membrane oxygenation flow puts higher demands on left ventricular work in a porcine model of chronic heart failureDiagram of study protocol. After pacemaker implantation, rapid ventricular pacing for 4–8 weeks led to progressive heart failure induction. When pacing was stopped, ECMO protocol consisted of stepwise increase of EBF. Data sets were collected at each EBF step (asterisk). Timeframe durations are stated in each box. EBF extracorporeal blood flowBack to article page