Heart Failure Duration Combined with Left Atrial Dimension Predicts Super-Response and Long-Term Prognosis in Patients with Cardiac Resynchronization Therapy Implantation

Table 4

Comparison of cardiac function and echocardiographic data at baseline and follow-up in two groups.

Variables	super-responders (n=17)			non-super-responders (n=56)			P Value
	baseline	follow-up	P Value	baseline	follow-up	P Value
NYHA class	3 (2-3)	2 (1-2)	< 0.001	3 (3-3)	2 (2-3)	< 0.001	< 0.001
LVEF (%)	32.6 (28-35)	57 (54-59)	< 0.001	31(25-33.8)	34.5(29.3-38.8)	0.003	< 0.001
LVEDD (mm)	68.3 ± 8.4	55.3 ± 6.1	< 0.001	70.8 ± 7.8	68.7 ± 9.5	0.034	< 0.001
MR (cm^2)	6.0 (4.3-7.6)	1 (0-2.4)	< 0.001	7.3 (4.5-10.4)	4.6 (2.5-7.3)	< 0.001	< 0.001

NYHA: New York Heart Association; LVEF: left ventricular ejection fraction; LVEDD: left ventricular end-diastolic dimension; MR: mitral regurgitation.
P: follow-up between two groups.