Key result
Early NSVT plus unexplained syncope in DCM linked to higher SCD/MVA risk and ~30% genotype yield.
Why the study?
The definition of dilated cardiomyopathy with arrhythmic phenotype is not universally accepted, causing uncertainty in identifying high-risk patients.
Does the presence of early arrhythmic markers predict sudden cardiac death and major ventricular arrhythmias in patients with dilated cardiomyopathy?
Cohort (n=742)
Yes
Does the presence of early arrhythmic markers predict sudden cardiac death and major ventricular arrhythmias in patients with dilated cardiomyopathy?
In patients with dilated cardiomyopathy, the combination of early unexplained syncope and NSVT identifies those at high risk for life-threatening arrhythmias and carriers of malignant arrhythmogenic genotypes.
No takes yet. Share an insight, caveat, or question.
May aid early risk stratification in DCM without yet altering ICD decisions; extends genotype-phenotype links but remains hypothesis-generating.
Setti et al. (2024) conducted a cohort in Dilated cardiomyopathy (n=742). Arrhythmic markers (unexplained syncope and non-sustained ventricular tachycardia) was evaluated on Composite of sudden cardiac death and major ventricular arrhythmias (SCD/MVA). The presence of both early NSVT and unexplained syncope in DCM patients increased the risk of SCD/MVA and raised the probability of identifying an arrhythmogenic genotype from 8% to 30%.
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