Table 1

Baseline Clinical Characteristics of Patients Who Received CCM (n = 30)

Age (yrs)60 ± 11
Sex
 Male80%
 Female20%
Etiology
 Ischemic50%
 Nonischemic50%
NYHA functional class III100%
QRS duration (ms)99 ± 15
LV ejection fraction (%)29.0 ± 6.5
Vo2 max (ml/kg/min)15.9 ± 4.7
ICD6.7%
Diuretics66.7%
ACEI or ARB83.3%
Beta-blocker73.3%
Aldactone13.3%
Digoxin6.7%

ACEI = angiotensin-converting enzyme inhibitor; ARB = angiotensin II receptor blocker; CCM = cardiac contractility modulation; ICD = implantable cardioverter-defibrillator; LV = left ventricular; NYHA = New York Heart Association; Vo2 max = maximal oxygen consumption.