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

Table 7 Univariate and multivariate linear regression analysis of variables associated with free wall RV PSS

	Univariate		Multivariate
	Coefficients	p Value	β-coefficients	p Value
Heart rate	0.24	0.04	-	ns
Log BNP	0.38	<0.01	-	ns
BNP ≥100 pg/ml	0.23	0.06	-	ns
BNP ≥500 pg/ml	0.40	<0.01	0.28	0.02
MI ≥1 year	0.23	0.06	-	ns
PVR	0.30	0.01	-	ns
LV mass index	0.28	0.02	-	ns
LV PSS (L: 4-chamber)	0.45	<0.01	0.26	0.03
Infarction in the LAD territory	−0.11	0.37
Infarction in the LC territory	0.31	<0.01	0.26	0.01
Infarction in the RCA territory	0.13	0.29
Multi-vessel infarction	0.13	0.29
Residual total occlusion in the culprit LAD	−0.11	0.37
Residual total occlusion in the culprit LC	0.13	0.28
Residual total occlusion in the culprit RCA	0.36	<0.01	-	ns

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

ISSN: 1476-7120