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[The heart rate variability in the acute lacunar cerebral infarct]

I A Gonchar, S A Likhachev, A V Frolov

    Zhurnal Nevrologii I Psikhiatrii Imeni S.S. Korsakova
    |January 10, 2012
    PubMed

    Insights

    Acute lacunar stroke disrupts heart rate variability, indicating autonomic nervous system imbalance. This study reveals changes in heart rate control following lacunar infarcts.

    Area of Science:

    • Cardiology
    • Neurology
    • Autonomic Nervous System Research

    Context:

    • Lacunar infarcts are a common type of ischemic stroke.
    • Autonomic nervous system (ANS) dysfunction can complicate stroke recovery.
    • Heart rate variability (HRV) analysis offers insights into ANS activity.

    Purpose:

    • To investigate heart rate variability (HRV) disturbances in patients with acute lacunar cerebral infarct.
    • To assess the impact of lacunar stroke on the autonomic control of heart rate.

    Summary:

    • This study examined 30 patients with acute lacunar cerebral infarct, excluding those with arrhythmias.
    • Electrocardiogram (EKG) recordings and time/frequency domain HRV analysis were performed.
    • Results showed significant HRV disturbances, including centralization of autonomic control, relative sympathetic dominance, and reduced parasympathetic activity, particularly in right carotid stroke cases.

    Impact:

    • Findings suggest that lacunar stroke significantly alters cardiac autonomic regulation.
    • Understanding these HRV changes may aid in stroke prognostication and management.
    • Highlights the link between cerebrovascular events and cardiovascular autonomic dysfunction.

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