Figure 2. Wait list survival, stratified by absence of support, ventricular assist device (VAD) while listed, and extracorporeal membrane oxygenation (ECMO) while listed.

Time 0 is time of listing for unsupported patients (unsupp pts), who are followed up to the event of death or censored at transplant, removal from list, or at time of first device (ECMO or VAD). The lower 2 curves depict survival while on first device, either ECMO or VAD. Time 0 for patients on device (ECMO or VAD) is time of listing (if patient on device at listing) or time implant of first device following listing. Patients in this cohort are censored at transplant or removal from list. PHTS indicates Pediatric Heart Transplant Society; and tx, transplant.