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Accessory mitral valve tissue: anatomical and clinical perspectives.
Ertan Yetkin1, Bilal Cuglan2, Hasan Turhan1
1Istinye University, Faculty of Medicine Department of Cardiology, Istanbul Turkey.
Summary
Accessory mitral valve tissue (AMVT) can cause various heart conditions, from silent cases to severe issues like heart failure and stroke. This review introduces a new anatomical classification for AMVT, aiding diagnosis and treatment.
Area of Science:
- Cardiology
- Cardiac Anatomy
- Echocardiography
Background:
- The mitral valve is crucial for unidirectional blood flow between the left atrium and ventricle.
- Accessory mitral valve tissue (AMVT) is an anomalous cardiac structure attached to the normal mitral valve apparatus.
- AMVT can manifest asymptomatically or lead to serious clinical conditions, including thromboembolism, heart failure, left ventricular outflow tract obstruction, and arrhythmias.
Purpose of the Study:
- To review the clinical implications of accessory mitral valve tissue (AMVT).
- To present a novel anatomical classification system for AMVT based on its location.
- To enhance the understanding and recognition of AMVT in clinical practice.
Main Methods:
- Review of existing literature on accessory mitral valve tissue (AMVT).
- Development of a new anatomical classification: Type I (supra-leaflet attachment), Type II (leaflet attachment), Type III (infra-leaflet attachment).
- Emphasis on the role of echocardiography in diagnosis.
Main Results:
- Accessory mitral valve tissue (AMVT) presents a spectrum of clinical scenarios.
- A new anatomical classification (Types I, II, III) is proposed based on AMVT attachment.
- Echocardiography is key to identifying AMVT, especially in patients with murmurs, outflow obstruction, or unexplained cerebrovascular events.
Conclusions:
- Accessory mitral valve tissue (AMVT) requires increased clinical awareness due to its diverse presentations.
- The proposed anatomical classification aids in understanding and potentially guiding the management of AMVT.
- Widespread echocardiographic use can improve the detection rates of AMVT.
Keywords:
Accessory mitral valve tissueCardiac anatomyCardiac anomalyLeft ventricular outflow tract obstructionThromboembolismMore Related Videos
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