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Table 1 Demographics and standard echocardiographic variables.

From: Cardiac incoordination induced by left bundle branch block: its relation with left ventricular systolic function in patients with and without cardiomyopathy

Variables Controls N = 20 LBBB N = 21 ICMP N = 19 DCMP N = 26 P
Age, years 70 ± 4 61 ± 8* 61 ± 9* 65 ± 9* < 0.001
Gender, (M/F) 10/10 11/10 17/2 21/5 0.01
QRS, ms 84 ± 4 145 ± 9* 150 ± 9* 154 ± 9* < 0.001
LA diameter, mm 34 ± 5 37 ± 8 49 ± 10*† 48 ± 10*† <0.001
SWT, mm 11 ± 0.7 11 ± 1.3 9.7 ± 1.9† 9.2 ± 1.9*† < 0.01
PWT, mm 11 ± 1.0 10 ± 1.0 10 ± 2.1 10 ± 1.8 NS
LVEDD, mm 43 ± 6 46 ± 6 75 ± 8*† 72 ± 12*† <0.001
LVEDV, ml 99 ± 23 114 ± 36 247 ± 73*† 274 ± 123*† < 0.001
LVESV, ml 46 ± 10 63 ± 26 177 ± 62*† 203 ± 105*† < 0.001
LVEF, % 54 ± 4 46 ± 8* 27 ± 10*† 29 ± 7*† <0.001
  1. Abbreviations: LA = Left atrium; LVEDD = Left ventricular end diastolic diameter; LVEF = Left ventricular ejection fraction; LVEDV = Left ventricular end diastolic volume; LVESV = Left ventricular end systolic volume; PWT = Posterior wall thickness; SWT = Septal wall thickness.
  2. P = Analysis of variance.
  3. * < 0.05 vs. Controls.
  4. †< 0.05 vs. LBBB.