Differences in cardiac output of patients undergoing trans-catheter aortic valve implantation according to their underlying rhythm

Table 2 Echocardiographic characteristics of included patients post-transcatheter aortic valve implantation, mean ± SD

Variable	Non-atrial fibrillation			Atrial fibrillation
	BEV (n = 59)	SEV (n = 48)	P value	BEV (n = 20)	SEV (n = 11)	P value
Peak gradient, mmHg	29 ± 12	17 ± 8	< 0.001	29 ± 16	21 ± 15	0.15
Mean gradient, mmHg	16 ± 7	9 ± 5	< 0.001	17 ± 9	11 ± 8	0.09
LVOT VTI, cm	25 ± 6	26 ± 6	0.20	21 ± 4	22 ± 7	0.53
LVOT diameter, cm	1.92 ± 0.17	1.90 ± 0.17	0.57	1.94 ± 0.16	1.90 ± 0.22	0.54
Heart rate beat per minute	70 ± 11	76 ± 14	0.014	76 ± 16	73 ± 15	0.61
Stroke volume, mL	72 ± 18	75 ± 21	0.45	63 ± 16	65 ± 25	0.87
Cardiac output, L/minute	5.0 ± 1.3	5.7 ± 1.5	0.029	4.6 ± 0.9	4.5 ± 1.2	0.67
Cardiac index, L/minute/m2	2.9 ± 0.8	3.2 ± 0.8	0.083	2.6 ± 0.7	2.5 ± 0.6	0.83

LVOT: Left ventricular outflow tract; VTI: Velocity-time integral; BEV: Balloon-expandable valve; SEV: Self-expanding valve.