Table 2

Hemodynamic Results at Baseline and During Left Ventricular Pacing at the CS Site, Best Site, Worst Site, and the Left Ventricular Pacing Site Associated With the Best Improvement of +dP/dTmax(at Best +dP/dTmax)

VariablesBaselineCS PacingBest Sitep ValueWorst Sitep ValueAt Best +dP/dTmaxp Value
Mean% ChangeMean% ChangeMean% ChangeMean% Change
+dP/dTmax
 LAVD773.1 ± 876.1873 ± 22915 ± 23921 ± 24631 ± 26<0.001811 ± 2622 ± 12<0.001921 ± 24631 ± 26<0.001
 SAVD847 ± 22412 ± 21904 ± 27826 ± 23<0.001789 ± 2561 ± 13<0.001904 ± 27826 ± 23<0.001
−dP/dTmin
 LAVD−792.7 ± 251.1−800 ± 2140 ± 13−883 ± 28119 ± 17<0.001−776 ± 234−5 ± 11<0.001−847 ± 2598 ± 170.003
 SAVD−783 ± 217−1 ± 14−871 ± 28717 ± 16<0.001−771 ± 257−7 ± 10<0.001−823 ± 2565 ± 11<0.001
PP
 LAVD51.8 ± 17.656 ± 167 ± 2060 ± 1736 ± 30<0.00151 ± 17−9 ± 14<0.00158 ± 1816 ± 190.001
 SAVD52 ± 151 ± 2158 ± 1932 ± 17<0.00149 ± 17−12 ± 15<0.00158 ± 199 ± 190.01
ESP
 LAVD104.7 ± 21.8108 ± 192 ± 10112 ± 2414 ± 11<0.001102 ± 18−4 ± 11<0.001111 ± 229 ± 10<0.001
 SAVD107 ± 182 ± 10111 ± 2312 ± 10<0.00199 ± 22−8 ± 10<0.001110 ± 216 ± 100.007

CS = coronary sinus; ESP = end-systolic pressure; PP = pulse pressure; other abbreviations as in Table 1.