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[Double mitral orifice. An anatomical case].

P Le Floch-Prigent, J Fouchard, A Carlioz

Archives Des Maladies Du Coeur Et Des Vaisseaux

|April 1, 1986

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A rare double mitral valve malformation was found in a 74-year-old woman who experienced cardiac failure. This congenital anomaly, resulting from abnormal leaflet fusion, presents unique anatomical features.

Area of Science:

Cardiovascular Pathology
Congenital Heart Malformations
Cardiac Anatomy

Background:

Mitral valve disease can lead to cardiac failure.
Congenital heart anomalies require detailed anatomical understanding.
Autopsy provides crucial insights into complex cardiac pathologies.

Observation:

A unique double mitral valve anomaly was identified during autopsy.
A vertical limbus divided the mitral annulus into two distinct orifices.
Each mitral orifice possessed its own chordae tendineae and papillary muscles.

Findings:

The malformation resulted from the fusion of mitral leaflets during early embryonic development (stages 15-16).
Pre-dissection echocardiography and CT scanning aided in characterizing the anomaly.

Related Experiment Videos

The patient's death was attributed to cardiac failure secondary to mixed mitral and aortic valve disease.

Implications:

This case highlights the importance of recognizing rare congenital cardiac malformations.
Understanding such anomalies is crucial for accurate diagnosis and management of valvular heart disease.
Detailed anatomical descriptions aid in advancing knowledge of embryological development and its impact on cardiac structure.