Key result
Induction of sustained monomorphic ventricular tachycardia during programmed ventricular stimulation predicted subsequent events (probability 2.56) and cardiac death (probability 2.17).
Why the study?
Does induction of SMVT during programmed ventricular stimulation predict arrhythmia occurrence and mortality in patients with chronic chagasic cardiomyopathy and NSVT?
Population
78 patients with chronic chagasic cardiomyopathy (CCC) and nonsustained ventricular tachycardia (NSVT)
Comparison
Programmed ventricular stimulation to induce… vs Non-inducible group
Design
Cohort
Follow-up
55.7 months
Authors
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May aid risk stratification in chagasic cardiomyopathy with NSVT; leaves open whether induction should guide ICD decisions in prospective studies.
Cohort (n=78)
Does induction of SMVT during programmed ventricular stimulation predict arrhythmia occurrence and mortality in patients with chronic chagasic cardiomyopathy and NSVT?
Effect estimate: probability 2.56 and 2.17
Induction of sustained monomorphic ventricular tachycardia during programmed ventricular stimulation is a strong predictor of cardiac death and general mortality in patients with chronic chagasic cardiomyopathy and NSVT.
Silva et al. (2000) conducted a cohort in Chronic chagasic cardiomyopathy and nonsustained ventricular tachycardia (n=78). Induction of sustained monomorphic ventricular tachycardia during programmed ventricular stimulation vs. Noninducible group was evaluated on Occurrence of subsequent events and cardiac death (probability 2.56 and 2.17). Induction of sustained monomorphic ventricular tachycardia during programmed ventricular stimulation predicted subsequent events (probability 2.56) and cardiac death (probability 2.17).
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