Table 2.

Factors associated with outcomes after ECPR

Risk factors	Effect on survival with functional recovery	OR for survival	RR or HR for mortality	Modifiable?
Pre-arrest
Older age	Unfavorable	Age > 60, OR 0.54 [13]	Age ≤ 65, HR 0.46 [15]	No
Shockable rhythm	Favorable	OR 1.39–3.93 [13, 23, 41, 51, 53, 55]	HR 0.58 [14] Asystole, RR 1.36 [56] PEA, RR 1.2 [56]	No
Intra-arrest
Shorter no-flow or low-flow time	Favorable	CPR < 30 min (vs > 30 min), OR 4.13 [13] CPR < 45 min (vs > 45 min), OR 3.53 [13] CPR < 60 min (vs > 60 min), OR 9.82 [13] For every 10 min shorter CPR, OR 1.95 [51] CPR duration per min increase, OR 0.97 [41] CPR < 45 min vs CPR > 58 min, OR 3.66 [52]	CPR per min increase, HR 1.007 [14] CPR duration ≤ 35 min, HR 0.37 [15]	Yes
High-quality CPR	Favorable	N/A	N/A	Yes
Post-arrest
Targeted temperature management	Favorable	N/A	N/A	Yes
Percutaneous coronary intervention	Favorable	OR 1.52 [13]	HR 0.36 [15]	Yes

CPR cardiopulmonary resuscitation, N/A not available, PEA pulseless electrical activity