Table 3. Effect of CRT on right ventriculo-arterial coupling variables.

Variables	CRT non-responders			CRT responders
	Baseline	CRT Confidence Interval	p value	Baseline	CRT Confidence Interval	p value
TAPSE (mm)	14.8 ± 3.2	15.5 ± 5.2	0.580	16.2 ± 3.4	19.0 ± 4.6	0.020
PASP (mmHg)	45.4 ± 14.9	38.9 ± 13.8	0.154	32.2 ± 11.6	28.7 ± 8.6	0.265
TAPSE/PASP	0.37 ± 0.17	0.43 ± 0.19	0.249	0.56 ± 0.21	0.72 ± 0.3	0.037

Data was grouped according to non-responders (Δ LVEF < 5%) and responders (Δ LVEF ≥ 5%) to CRT.

Data are presented as mean ± standard deviation.

CRT: cardiac resynchronization therapy, PASP: pulmonary artery systolic pressure, TAPSE: tricuspid annular plane systolic excursion.

Statistical significance between groups was calculated using Student's t-test. A p value < 0.05 was considered significant.