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Sleep and ventricular arrhythmias.

M J Rosenberg, E Uretz, P Denes

    American Heart Journal
    |October 1, 1983
    PubMed
    Summary
    This summary is machine-generated.

    Some patients experience increased ventricular arrhythmias during sleep, contrary to typical reductions. This subgroup also shows a higher prevalence of neurologic conditions, suggesting a potential nervous system link to these heart rhythm disturbances.

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    Area of Science:

    • Cardiology
    • Neurology
    • Sleep Medicine

    Background:

    • Ventricular arrhythmias (VAs) typically decrease during sleep.
    • A subgroup of patients exhibits increased VAs during sleep.
    • The underlying mechanisms for sleep-related VA exacerbation are not fully understood.

    Purpose of the Study:

    • To identify and characterize patients with increased ventricular ectopy during sleep.
    • To compare the clinical and electrophysiological characteristics of these patients with a control group.
    • To investigate potential contributing factors, such as neurologic abnormalities.

    Main Methods:

    • Analysis of 1260 24-hour Holter recordings for ventricular ectopy.
    • Identification of 50 patients with significant increases in sleep-related ectopy.

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  • Comparison with a matched control group based on age, sex, and overall VA frequency.

    • Main Results:

    • Patients with increased sleep-related ectopy had significantly higher VA frequency per hour during sleep compared to controls.
    • This study group showed fewer daytime premature ventricular beats and increased complexity of VAs during sleep.
    • Neurologic abnormalities, particularly cerebrovascular disease, were significantly more common in the study group.

    Conclusions:

    • A distinct subgroup of individuals experiences increased frequency and complexity of ventricular arrhythmias during sleep.
    • The higher prevalence of neurologic disease in this subgroup suggests a potential neurologic or neurohumoral mediation.
    • Further research is warranted to explore the relationship between neurologic factors and sleep-related ventricular arrhythmias.