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Pacing Clin Electrophysiol · Nov 1992
Survival after a first episode of ventricular tachycardia or fibrillation.
- S L Pinski, J D Maloney, E B Sgarbossa, F Jubran, and R G Trohman.
- Department of Cardiology, Cleveland Clinic Foundation, OH 44195.
- Pacing Clin Electrophysiol. 1992 Nov 1; 15 (11 Pt 2): 2169-73.
AbstractRecent outcome analyses in ventricular tachycardia (VT) and ventricular fibrillation (VF) have included patients undergoing electrophysiological study (EPS) at tertiary care centers. The selection process involved could introduce bias in the reported populations. We analyzed the outcome of 42 consecutive patients (aged 63 +/- 11 years) admitted to a coronary care unit within 48 hours of a first episode of VT/VF not associated with reversible causes. All patients recovered neurologically and were candidates for EPS. Nine patients (21%) died during the initial hospitalization (none had EPS), and another nine died during a follow-up of 17 +/- 12 months. Actuarial survival at 1 and 2 years was 64% and 62%, respectively. By Cox's model, congestive heart failure functional Class III-IV (P = 0.008; hazard ratio = 3.7) was the only independent prognostic factor. Among patients discharged, subsequent survival did not depend on the performance of EPS or on the antiarrhythmic therapeutic modalities used. Mortality after a first episode of VT/VF is high. Severe congestive heart failure is the most powerful prognostic factor. Studies including successfully referred patients undergoing EPS may not reflect the true natural history of patients with VT/VF.
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