Table 2.

Basic characteristics of eligible studies.

References	Design of study	eCPR + TH (n)	eCPR alone (n)	Pre-eCPR pH	Pre-eCPR lactate (mmol/L)	Survival outcomes	Neurologic outcomes	Bleeding outcomes
Choi et al. (12)	Retrospective	6	4	n/a	n/a	Yes	Yes	No
Dennis et al. (13)	Retrospective	15	22	7.17	9.4	Yes	Yes	Yes
Fjølner et al. (14)	Retrospective	9	12	6.45	17.2	Yes	Yes	No
Goto et al. (15)	Retrospective cohort	63	71	6.95	12.5	Yes	Yes	No
Han et al. (16)	Retrospective cohort	26	74	n/a	12.5	Yes	Yes	Yes
Jouffroy et al. (17)	Prospective cohort	29	17	n/a	n/a	Yes	No	No
Kagawa et al. (18)	Retrospective	21	18	7.13	n/a	Yes	Yes	Yes
Kagawa et al. (19)	Retrospective	32	54	n/a	n/a	Yes	No	No
Kagawa et al. (20)	Retrospective	48	39	n/a	n/a	Yes	Yes	Yes
Kim et al. (21)	Retrospective	14	38	6.98	11.6	Yes	Yes	Yes
Kim et al. (22)	Retrospective	25	76	7.03	6.5	Yes	Yes	Yes
Lee et al. (23)	Retrospective	18	5	7.01	9.7	Yes	No	Yes
Maekawa et al. (24)	Retrospective	26	26	7.00	17.2	Yes	Yes	Yes
Mecklenburg et al. (25)	Retrospective	36	30	n/a	7.6	Yes	No	Yes
Nagao et al. (26)	Prospective cohort	86	85	n/a	n/a	Yes	Yes	No
Nagao et al. (26)	Prospective cohort	138	13	n/a	n/a	No	Yes	No
Otani et al. (27)	Retrospective	28	107	6.90	13.2	No	Yes	No
Pang et al. (28)	RCT	9	12	n/a	n/a	Yes	Yes	Yes
Pang et al. (29)	Retrospective	14	65	n/a	n/a	Yes	Yes	Yes
Ryu et al. (30)	Retrospective	36	238	n/a	7.9	Yes	Yes	No
Sakamoto et al. (31)	Prospective observational	231	29	n/a	n/a	Yes	Yes	No
Schober et al. (32)	Retrospective	3	4	6.95	12.0	Yes	Yes	No
Yukawa et al. (33)	Retrospective	50	29	n/a	14.0	No	Yes	No