Table 1

Baseline Characteristics: Clinical Study

Control Subjects (n = 11)LBBB Patients (n = 11)
Age, yrs60 ± 1062 ± 8
Male55
Height, cm176 ± 10172 ± 11
Weight, kg78 ± 1579 ± 11
Past history
 Hypertension23
 Paroxysmal atrial fibrillation01
Medication
 ACE inhibitor/ARB23
 Beta-blocker03
 Calcium-channel blockers11
 Loop diuretic agents00
 Aldosterone antagonists00
Smoking11
Sinus rhythm1111
QRS duration, ms98 ± 20147 ± 9
Echocardiographic dimensions at end diastole, mm
 Septum9 ± 110 ± 1
 LV internal diameter50 ± 653 ± 4
 LV posterior wall8 ± 18 ± 1

Values are mean ± SD or n.

ACE = angiotensin-converting enzyme; ARB = angiotensin II receptor blocker; LBBB = left bundle branch block; LV = left ventricular.

  • p < 0.05 vs. control subjects.