Table 2

Atrial Mechanics: Regional Active Atrial Strain

RegionAS ModeAP Modep Value
CRT
 Right atrium (%)−28.2 ± 8.6−22.6 ± 7.60.0007
 Interatrial septum (%)−17.1 ± 6.5−13.2 ± 5.40.002
 Left atrium (%)−16.4 ± 11−13.6 ± 8.50.02
Control group
 Right atrium (%)−29.0 ± 6.4−25.6 ± 6.3<0.0001
 Interatrial septum (%)−16.0 ± 4.8−13.6 ± 4.20.0025
 Left atrium (%)−15.2 ± 6.1−13.6 ± 5.40.0258

Values are mean ± SD.

Abbreviations as in Table 1.