Table 1.

Different percutaneous mechanical circulatory support devices and their characteristics.

	V-A ECMO	Impella® 2.5 L	Impella® 5.5 L	Impella® CP	iVAC® 2.0 L
Catheter size (F)	-	9	9	9	11
Cannula size (F)	14–19 arterial 17–21 venous	12	19	14	17
Maximum flow (L/min)	7.0	2.5	6.0	4.3	2.0
Pump mechanism	Centrifugal flow—continuous pump	Axial flow—continuous pump	Axial flow—continuous pump	Axial flow—continuous pump	Pulsatile flow—depends on HR
Blood is aspirated from	Right Atrium	Left Ventricle	Left Ventricle	Left Ventricle	Left Ventricle
Blood is ejected in	Aorta	Ascending Aorta	Ascending Aorta	Ascending Aorta	Aorta
Access site	Femoral Vein Femoral Artery	Femoral Artery	Axillary Artery	Femoral Artery	Femoral Artery
Implantation	Percutaneous	Percutaneous	Percutaneous	Percutaneous	Percutaneous
LV support		+	+	+	+
Indications		Advanced HF Cardiogenic shock Postcardiotomy cardiogenic shock High-risk PCI	Cardiogenic shock Postcardiotomy cardiogenic shock	Advanced HF Cardiogenic shock Postcardiotomy cardiogenic shock High-risk PCI	High-risk PCI Acute myocardial infarction Cardiogenic shock Left ventricular failure with an EF < 30%, and/or CI < 2.5 L/min/m2
Maximal duration of application		Up to 4 days	Up to 14 days	Up to 4 days	Up to 24 h
Cost	+ (+)	+++	++++	++++	++