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| ECHO | Seropositives n (%) | Seronegatives n (%) | Gradient (%) |
|---|---|---|---|
| Abnormal a | 24 (22.6) | 9 (8.5) | 14.1 |
| Normal | 82 (77.4) | 97 (91.5) | - |
a : low ejection fraction, myocardial segmental impairment, apical ventricle aneurysm, posteroinferior or septal akinesis or hypokinesis.
