Use of the impedance threshold device in cardiopulmonary resuscitation

Table 2 ROSC in diverse animal and human studies

First author	CPR method	ROSC (%)	↑(%) with ITD	P-values
Animal studies
Lurie et al[36]	ACD-CPR	77.8	28.5	0.18
	ACD-CPR + ITD	100
Lurie et al[41]	S-CPR	18.2	199.5	< 0.05
	S-CPR+ITD	54.5
Raedler et al[44]	S-CPR	0
	ACD-CPR + ITD	42.9		0.06
Srinivasan et al[45]	S-CPR	37.5	166.7	< 0.05
	ACD-CPR + ITD	100
Matsuura et al[52]	S-CPR	83.3	20.0	-
	S-CPR + ITD	100
Human studies
Vartanian et al[53]	S-CPR	45.0	31.1	0.03
	S-CPR + ITD	59.0
Aufderheide et al[54]	S-CPR	33.8	12.1	0.022
	S-CPR + ITD	37.9
Plaisance et al[55]	ACD-CPR	20.0	82.0	0.4
	ACD-CPR + ITD	36.4
Wolcke et al[56]	S-CPR	37.0	48.6	0.016
	ACD-CPR + ITD	55.0

ROSC: Return of spontaneous circulation.