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[Autonomic nervous system unbalance in patients with ischemic heart disease and depression]

O V Dolynna

    Likars'Ka Sprava
    |March 11, 2014
    PubMed

    Insights

    Depression affects over 26% of coronary heart disease patients, with varying severity. This condition is linked to reduced heart rate variability and increased sympathetic nervous system activity.

    Area of Science:

    • Cardiology
    • Psychiatry
    • Neuroscience

    Context:

    • Coronary heart disease (CHD) is a leading cause of mortality worldwide.
    • Depression is a common comorbidity in patients with CHD.
    • The interplay between cardiovascular health and mental well-being is increasingly recognized.

    Purpose:

    • To investigate the prevalence and characteristics of depressive disorders in patients diagnosed with coronary heart disease.
    • To explore the physiological correlates of depression in this patient population.

    Summary:

    • A significant percentage (26.9%) of coronary heart disease patients exhibit depressive disorders.
    • Depression severity ranged from mild (61.1%) to masked (27.8%) and moderate (11.1%).
    • Patients with CHD and depression showed decreased heart rhythm variability, elevated sympathetic tone, disrupted circadian rhythms, and increased humoral influence on heart rhythm.

    Impact:

    • Highlights the critical need for integrated care models addressing both cardiac and mental health in CHD patients.
    • Suggests that monitoring heart rate variability and autonomic nervous system function may aid in identifying depression in CHD.
    • Underscores the importance of understanding the physiological mechanisms linking depression and cardiovascular disease for improved patient outcomes.

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