Table 2.
Electrocardiographic and Echocardiographic Characteristics
| Characteristic | CCM (n=25) | Non-CCM (n=103)* | All (n=128) | P Value† |
|---|---|---|---|---|
| Electrocardiographic | ||||
| Rhythm | ||||
| NSR, n (%) | 21 (84) | 79 (77) | 100 (78) | 0.60 |
| Atrial fibrillation/flutter, n (%) | 1 (4) | 16 (16) | 17 (13) | 0.19 |
| Paced, n (%) | 3 (12) | 6 (6) | 9 (7) | 0.38 |
| Conduction disease | ||||
| LBBB, n (%) | 2 (8) | 26 (25) | 28 (22) | 0.11 |
| RBBB, n (%) | 5 (20) | 1 (1) | 6 (5) | < 0.001 |
| LAFB, n (%) | 1 (4) | 11 (11) | 12 (9) | 0.46 |
| IVCD, n (%) | 6 (24) | 9 (9) | 15 (11) | 0.08 |
| Other | ||||
| Q waves, n (%) | 4 (16) | 8 (8) | 12 (9) | 0.25 |
| LVH, n (%) | 6 (24) | 27 (26) | 33 (26) | 1.00 |
| Echocardiographic | ||||
| Median LVEDD, mm (25%, 75%) | 66 (59, 73) | 62 (56, 69) | 62 (55, 69) | 0.15 |
| Median LVEF, % (25%, 75%) | 20 (8, 33) | 25 (18, 33) | 25 (18, 32) | 0.24 |
CCM indicates Chagas cardiomyopathy; IVCD, intraventricular conduction delay; LAFB, left anterior fascicular block; LBBB, left bundle-branch block; LVEDD, left ventricular end-diastolic diameter; LVEF, left ventricular ejection fraction; LVH, left ventricular hypertrophy; NSR, normal sinus rhythm; and RBBB, right bundle-branch block..
*
7 EKGs were missing from the non-CCM group.
†
Fisher exact test (categorical variables) or t test (continuous variables).