Table 2.

Studies reporting mortality for VV ECMO in COVID-19 related ARDS (Additional File 1)

	Data source	Study period	ECMO patients	Mortality
Preliminary studies
Ruan et al. 2020	China	–	7	100%
Wu et al. 2020	China	–	1	100%
Yang et al. 2020	China	Dec 24, 2019–Jan 26, 2020	6	83.4%
Zhou et al. 2020	China	Dec 29, 2019–Jan 31, 2020	3	100%
Guan et al. 2020	China	Dec 11, 2019–Jan 29, 2020	5	–
Retrospective observational studies—Registries
Barbaro et al. 2020	ELSO Registry	Jan 16, 2020–May 1, 2020	1035	37.4%
Lorusso et al. 2021	Euro ELSO survey	Mar 15, 2020–Sep 14, 2020	1531	45%
Schmidt et al. 2020	France	Mar 8, 2020–May 2, 2020	83	36%
Barbaro et al. 2021	ELSO Registry	A1 Early adopting centers (Before May 1, 2020) A2 Early adopting centers (May 2–Dec 31, 2020) B Late adopting centers (May 2–Dec 31, 2020)	1182 2824 803	36.9% 51.9% 58.9%
Broman et al. 2021	Euro ELSO survey	Mar 12, 2020–Sep 14, 2020 Sep 15, 2020–Mar 8, 2021	1442 1723	47% 56%
Riera et al. 2021	Spain, Portugal	Mar 1, 2020–Jun 30, 2020 Jul 1, 2020–Dec 1, 2020	151 168	41.1% 60.1%
Schmidt et al. 2021	France	Mar 8, 2020–Jun 30, 2020 Jul 1, 2020–Jan 28, 2021	88 71	36% 48%
Karagiannitis et al. 2021	Germany	Feb 2020–Dec 2020	119	71%
Lorusso et al. 2022	Euro ELSO survey	Mar 1, 2020–Sep 13, 2020	1215	50%
Ohshimo et al. 2022	Japanese National Registry	Feb, 2020–Nov 2021	1214	32–40%
Emulation studies
Shaefi et al. 2021	United States	Mar 1, 2020–Jul 1, 2020	130	34.6%
Urner et al. 2022	COVID-19 Critical Care Consortium registry	Jan 3, 2020–Aug 29, 2021	844	26%
Hajage et al. 2022	French, Belgian, Swiss	Feb 25, 2020, and May 4, 2020	269	44%

ELSO Extracorporeal Life Support Organization