Clinical, echo features and fluoroscopic indexes Total N 45
Age years  ±  SD 72.6  ±  9
Sex male n (%) 28 (62.2)
PM n (%) 27 (60)
ICDn (%) 18 (40)
Baseline Paced QRS n (%) 15 (31.2)
Permanent AFn (%) 13 (28.9)
ACE or ARBn (%) 45 (100)
BBn (%) 43 (95.6)
DIURn (%) 44 (97.8)
CADn (%) 17 (37.8)
Prev Ant MIn (%) 6 (13.3)
QRS durationms  ±  SD 188.3 ±  19
LBBB typicaln (%) 22(48.9)
NYHA n  ±  SD 2.5 ± 0.6
RV apex leadn (%) 42 (93.3)
EDV pre ml/m2  ±  SD 115.5 ± 40.3
EDD premm  ±  SD 66.2 ± 7.8
LVEF pre %  ±  SD 32.3 ± 7.4
ESV preml/m2  ±  SD 79.3 ± 32
MR /4 n  ±  SD 1.6 ± 1
TR /4n  ±  SD 1.1 ± 1
Follow up months  ± SD 12.3 ± 7.8
Table 1: Clinical and echocardiographic features of the study patients.