Key result
In patients with an implantable cardioverter defibrillator, nonischemic dilated cardiomyopathy was an independent predictor of electrical storm (HR 3.71).
Observational (n=85)
No
Effect estimate: HR 3.71 (95% CI 1.16-11.85)
p-value: p=0.027
In patients with an ICD, nonischemic dilated cardiomyopathy is an independent predictor of electrical storm, whereas a structurally normal heart or ventricular fibrillation as the index arrhythmia are associated with a lower risk.
Nonischemic dilated cardiomyopathy may aid risk stratification in ICD patients; hypothesis-generating and requires prospective validation before guiding care.
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Song et al. (2010) conducted an observational in Implantable Cardioverter Defibrillator (ICD) recipients (n=85). Nonischemic dilated cardiomyopathy (predictor) vs. Other underlying heart diseases was evaluated on Occurrence of electrical storm (ES) (HR 3.71, 95% CI 1.16-11.85, p=0.027). In patients with an implantable cardioverter defibrillator, nonischemic dilated cardiomyopathy was an independent predictor of electrical storm (HR 3.71).
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