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Related Experiment Videos

Double mitral valve orifice in atrioventricular defects.

C Warnes, J Somerville

    British Heart Journal
    |January 1, 1983
    PubMed
    Summary

    A double mitral valve orifice, often associated with atrioventricular defects, can be diagnosed using echocardiography and angiography. Surgical outcomes vary, with simple repairs sometimes sufficient for less complex cases.

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    Area of Science:

    • Cardiology
    • Cardiac Surgery
    • Medical Imaging

    Background:

    • Double mitral valve orifice is a rare congenital anomaly.
    • It is often associated with atrioventricular defects, including ostium primum defects.
    • Accurate preoperative diagnosis is crucial for appropriate surgical management.

    Purpose of the Study:

    • To describe the diagnostic features of double mitral valve orifice.
    • To evaluate the surgical outcomes in patients with this anomaly.
    • To highlight the importance of recognizing this anomaly for surgical planning.

    Main Methods:

    • Retrospective review of 11 patients with double mitral valve orifice and atrioventricular defects.
    • Diagnosis confirmed during open heart surgery.
    • Preoperative diagnosis aided by characteristic left ventricular border on angiography.
    • Echocardiography (M-mode and 2D) used to visualize the double mitral orifices.

    Main Results:

    • Angiography showed a characteristic medial border of the left ventricle suggestive of the anomaly.
    • Two-dimensional echocardiography provided better visualization of the double mitral orifices compared to M-mode.
    • Two operative deaths occurred in patients with slightly obstructive valves.
    • One late death occurred after mitral valve replacement.
    • Eight patients had favorable outcomes with minor repair or no intervention on the mitral valve.

    Conclusions:

    • Double mitral valve orifice can be diagnosed preoperatively using angiography and echocardiography.
    • Surgical management requires careful consideration, as simple repairs may be challenging.
    • Early recognition of this anomaly is essential for optimizing patient outcomes and avoiding potential complications.

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