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Related Experiment Videos

A clinicopathological study on mitral ring calcification

M Sugiura, S Uchiyama, K Kuwako

    Japanese Heart Journal
    |March 1, 1977
    PubMed
    Summary

    Mitral ring calcification (MRC) affects 10% of individuals over 60, being more prevalent in women. Larger MRC is linked to systolic murmurs and mitral valve disease, with higher incidence in females.

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    Area of Science:

    • Cardiovascular Pathology
    • Geriatric Medicine
    • Radiology

    Background:

    • Mitral ring calcification (MRC) is a common finding in older adults.
    • Its prevalence, characteristics, and association with mitral valve disease require further investigation.

    Purpose of the Study:

    • To determine the incidence and demographic distribution of MRC.
    • To analyze the relationship between MRC size and mitral valve disease.
    • To evaluate diagnostic accuracy of X-ray for large MRC.

    Main Methods:

    • Autopsy study of 600 individuals aged over 60.
    • Macroscopic measurement of MRC size and location.
    • Correlation analysis with mitral valve disease and systolic murmurs.
    • Retrospective X-ray film analysis for MRC diagnosis.

    Main Results:

    • MRC incidence was 10%, significantly higher in females (13.3%) than males (6.7%).
    • MRC size correlated positively with cross-sectional diameter (r=0.75).
    • Large MRC (>30 mm) was associated with systolic murmurs (70%), anterior leaflet extension (65%), and mitral stenosis/regurgitation (3 cases).
    • X-ray diagnosed large MRC in 85% and showed higher incidence of soft tissue calcification in affected individuals.

    Conclusions:

    • MRC is more common in elderly females and increases with age in this group.
    • Significant association exists between large MRC, systolic murmurs, and mitral valve pathology.
    • X-ray is a valuable tool for diagnosing large MRC and identifying associated calcification patterns.

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