“…80,82,85,87À89,91À94,97À101 Three studies included both patients with OHCA and those with IHCA. 82,89,99 Most studies defined the exposure as ECPR use; 1 study93 defined the exposure as ECPR availability; and 2 studies 100,101 defined the exposure as an ECPR strategy. Twelve studies reported survival to hospital discharge 80,82,85,87À89,91À93,97À99 ; 6 studies reported long-term survival 82,88,91,93,97,98 ; 8 studies reported favorable neurological outcome at hospital discharge 85,87,88,92,93,97,100,101 ; and 6 studies reported long-term favorable neurological outcomes.…”