Table 4.

Clinical and procedural characteristics at the ICU

	IABP (N=54)	Impella (N=62)	P value
Mechanical ventilation	51 (94)	60 (96)	0.66
Duration of mechanical ventilation, hours	36(12–168)	24(12–216)	0.73
Renal replacement therapy	21 (39)	24 (39)	1.00
Duration of dialysis, hours	48(24–84)	36(12–240)	0.95
Duration of device therapy, hours	24(12–36)	24(12–36)	0.74
Days of ICU stay	3(1–11)	3.5(1–18)	0.57
Successful weaning	30 (55)	36 (60)	0.70
Arrhythmias during device-therapy	17 (32)	17 (27)	0.68
Supraventricular tachycardia	7 (13)	7 (11)	0.78
Ventricular tachycardia	4 (7.4)	6 (9.7)	0.75
Ventricular fibrillation	5 (9.2)	2 (3.2)	0.24
Bradycardia	2 (3.7)	3 (4.8)	1.00

Data depicted as median [IQR] or counts (%). P values are from Wilcoxon rank sum or Fischer’s test.

IABP, intra-aortic balloon pump; ICU, intensive care unit.