Key result
In patients with dilated cardiomyopathy and an ICD, depressed heart rate variability was significantly associated with appropriate ICD shocks in the preceding 6 months (P=0.02).
Why the study?
Does heart rate variability assessment improve risk stratification for appropriate ICD shocks in patients with dilated cardiomyopathy and reduced LVEF?
Observational (n=42)
Does heart rate variability assessment improve risk stratification for appropriate ICD shocks in patients with dilated cardiomyopathy and reduced LVEF?
p-value: p=0.02
Depressed heart rate variability indices are significantly associated with appropriate ICD shocks in patients with dilated cardiomyopathy, suggesting potential utility for risk stratification.
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Supports HRV monitoring for ICD shock risk stratification in dilated cardiomyopathy; hypothesis-generating and requires prospective validation before clinical adoption.
Battipaglia et al. (2010) conducted an observational in Dilated cardiomyopathy with implantable cardioverter defibrillator (n=42). Depressed heart rate variability vs. Preserved heart rate variability was evaluated on occurrence of appropriate ICD shocks in the 6 months preceding the study (p=0.02). In patients with dilated cardiomyopathy and an ICD, depressed heart rate variability was significantly associated with appropriate ICD shocks in the preceding 6 months (P=0.02).
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