Table 3.
Simple correlations between pacing percentage and echocardiographic variables after PM implantation.
Correlation coefficient | P-value | ||
---|---|---|---|
LVEDD, mm | 0.162 | 0.005 | |
LVESD, mm | 0.189 | 0.001 | |
LVEF. % | −0.210 | <0.001 | |
LV mass index, g/m2 | 0.116 | 0.048 | |
LA volume index, ml/m2 | 0.100 | 0.083 | |
e' velocity, cm/s | −0.138 | 0.021 | |
S' velocity, cm/s | −0.202 | 0.001 | |
E/e' | 0.013 | 0.833 | |
|LV-GLS|, % | −0.257 | <0.001 | |
|LV-GCS|, % | −0.198 | 0.001 | |
LV segmental longitudinal strain | |||
Base | Antero-septum | 0.093 | 0.109 |
Anterior | 0.050 | 0.385 | |
Antero-lateral | 0.073 | 0.207 | |
Infero-lateral | 0.076 | 0.191 | |
Inferior | 0.126 | 0.029 | |
Infero-septal | 0.127 | 0.028 | |
Mid LV | Antero-septum | 0.183 | 0.001 |
Anterior | 0.081 | 0.164 | |
Antero-lateral | 0.133 | 0.021 | |
Infero-lateral | 0.058 | 0.316 | |
Inferior | 0.270 | <0.001 | |
Infero-septal | 0.182 | 0.002 | |
Apex | Septal | 0.333 | <0.001 |
Anterior | 0.236 | <0.001 | |
Lateral | 0.316 | <0.001 | |
Inferior | 0.271 | <0.001 |
LVEDD, left ventricular end-diastolic dimension; LVESD, left ventricular end-systolic dimension; LVEF, left ventricular ejection fraction; LV, left ventricle; LA, left atrium; e', early diastolic mitral annular tissue velocity; S', systolic mitral annular tissue velocity; E/e', ratio of early diastolic mitral inflow velocity to early diastolic mitral annular tissue velocity; |LV-GLS|, absolute value of left ventricular global longitudinal strain; |LV-GCS|, absolute value of left ventricular global circumferential strain.