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Microvascular coronary dysfunction in women: pathophysiology, diagnosis, and management

Kamlesh Kothawade, C Noel Bairey Merz

    Current Problems in Cardiology
    |July 5, 2011
    PubMed

    Insights

    Microvascular coronary dysfunction (MCD) is common in women with ischemia and no obstructive coronary artery disease. Early diagnosis via invasive testing can improve patient outcomes and guide therapy.

    Area of Science:

    • Cardiology
    • Women's Health
    • Vascular Biology

    Background:

    • Women often experience greater symptom burden and disability from myocardial ischemia compared to men.
    • A significant proportion of women with ischemia and no obstructive coronary artery disease have microvascular coronary dysfunction (MCD).

    Purpose of the Study:

    • To highlight microvascular coronary dysfunction (MCD) as a key mechanism of ischemia in women.
    • To discuss the diagnostic approaches and prognostic implications of MCD.

    Main Methods:

    • Review of current evidence on the pathophysiology and diagnosis of MCD.
    • Discussion of invasive coronary reactivity testing as the gold standard for MCD diagnosis.
    • Mention of noninvasive methods like adenosine stress cardiac magnetic resonance imaging.

    Main Results:

    • Microvascular coronary dysfunction (MCD) is the predominant cause of ischemia in women presenting with chest pain and non-obstructive coronary arteries.
    • Approximately 50% of these patients show physiological evidence of MCD.
    • MCD is linked to a significant annual rate of major adverse cardiovascular events.

    Conclusions:

    • Early identification of MCD through invasive coronary reactivity testing is crucial for prognostication and guiding optimal medical therapy.
    • Further research into MCD pathophysiology is essential for advancing diagnosis and treatment strategies.

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