Quantifying longitudinal right ventricular dysfunction in patients with old myocardial infarction by using speckle-tracking strain echocardiography

Table 6 Univariate and multivariate linear regression analysis of variables associated with global RV PSS

	Univariate		Multivariate
	Coefficients	p Value	β-coefficients	p Value
Heart rate	0.29	0.02	-	ns
Log BNP	0.43	<0.01	-	ns
BNP ≥100 pg/ml	0.27	0.02	-	ns
BNP ≥500 pg/ml	0.47	<0.01	0.25	0.02
MI ≥1 year	0.26	0.03	-	ns
PVR	0.39	<0.01	-	ns
LV mass index	0.29	0.01	-	ns
LV PSS (L: 4-chamber)	0.54	<0.01	0.30	<0.01
Infarction in the LAD territory	−0.06	0.61
Infarction in the LC territory	0.30	0.01	-	ns
Infarction in the RCA territory	0.19	0.12
Multi-vessel infarction	0.24	0.04	-	ns
Residual total occlusion in the culprit LAD	−0.03	0.81	-	ns
Residual total occlusion in the culprit LC	0.18	0.13
Residual total occlusion in the culprit RCA	0.41	<0.01	0.26	0.01

RV right ventricular, PSS peak systolic strain, BNP brain natriuretic peptide, MI myocardial infarction, LV, left ventricular, L longitudinal, LAD left anterior descending artery, LC left circumflex artery, RCA right coronary artery.

ISSN: 1476-7120