Table 1. Clinical characteristics of heart failure patients with non-ischemic dilated cardiomyopathy.
| With LBBB (n=38) | With no LBBB (n=42) | p value | ||
|---|---|---|---|---|
| Age (years) | 61±12 | 58±11 | 0.203 | |
| Men/women | 16/22 | 17/25 | 0.531 | |
| Heart rate (/min) | 72±10 | 76±12 | 0.381 | |
| Systolic BP (mmHg) | 119±15 | 114±16 | 0.227 | |
| Diastolic BP (mmHg) | 76±12 | 72±9 | 0.209 | |
| QRS complex width (ms) | 168.3±17.9 | 93.8±14.5 | <0.001 | |
| P-wave duration (ms) | 128.5±12.5 | 122.5±15.4 | 0.240 | |
| Hypertension | 9 (23.7) | 10 (23.8) | 0.599 | |
| Diabetes mellitus | 8 (21.0) | 9 (21.4) | 0.593 | |
| NYHA class II/III/IV | 8/21/9 | 9/25/8 | 0.735 | |
| Medications | ||||
| Beta blocker | 30 (78.9) | 34 (81.0) | 1.000 | |
| Diuretics | 28 (73.7) | 32 (76.2) | 0.803 | |
| Spironolactone | 19 (50.0) | 16 (38.1) | 0.368 | |
| ACEI or ARB | 31 (81.6) | 35 (83.3) | 0.534 | |
Data are expressed as the mean±standard deviation or number (%).
ACEI = angiotensin-converting enzyme inhibitor; ARB = angiotensin receptor blocker; BP = blood pressure; LBBB = left bundle branch block; NYHA = New York Heart Association.