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[Endothelial dysfunction in patients with combined coronary heart disease and chronic obstructive pulmonary disease]

N Iu Grigor'eva, E G Sharabrin, K N Kontorshchikova

    Klinicheskaia Meditsina
    |October 16, 2009
    PubMed

    Insights

    Chronic coronary heart disease (CHD) and chronic obstructive pulmonary disease (COPD) worsen each other, increasing disease severity. The reactive hyperemia test is the most effective method for diagnosing endothelial dysfunction in these patients.

    Area of Science:

    • Cardiology
    • Pulmonology
    • Vascular Biology

    Background:

    • Endothelial dysfunction is a key factor in cardiovascular and respiratory diseases.
    • Chronic coronary heart disease (CHD) and chronic obstructive pulmonary disease (COPD) often coexist, potentially exacerbating each other.
    • Accurate assessment of endothelial function is crucial for managing patients with combined CHD and COPD.

    Purpose of the Study:

    • To evaluate endothelial dysfunction in patients with CHD and COPD.
    • To compare endothelial function in patients with CHD alone, COPD alone, and combined CHD and COPD.
    • To identify the most informative diagnostic method for endothelial dysfunction in this patient population.

    Main Methods:

    • Instrumental and laboratory methods were used to assess endothelial function.
    • Nitrogen oxide (NO) metabolite levels were measured.
    • Reactive hyperemia testing was performed.
    • A comparative analysis was conducted across three patient groups: CHD with COPD, stable angina alone, and COPD alone.

    Main Results:

    • Combined CHD and COPD potentiate pathological processes, leading to disease aggravation.
    • Plasma nitrogen oxide metabolite levels did not accurately reflect nitric oxide availability in patients with cardiovascular issues or COPD.
    • The reactive hyperemia test demonstrated significant informativeness in assessing endothelial function.

    Conclusions:

    • Endothelial dysfunction is significantly impacted by the co-occurrence of CHD and COPD.
    • Standard blood markers for nitrogen oxide metabolites are insufficient for evaluating endothelial function in these patients.
    • The reactive hyperemia test is the recommended method for assessing endothelial function in patients with CHD and COPD.

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