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Open AccessJournal ArticleDOI

Morphology of the Human Mitral Valve

N. Ranganathan, +3 more
- 01 Mar 1970 - 
- Vol. 41, Iss: 3, pp 459-467
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TLDR
Fifty normal mitral valves from adults were studied and partitioning the mitral valvular tissue into anterior and posterior leaflets found that rough and clear zones can be defined on the anterior leaflet and rough, clear, and basal zones on the posterior leaflet.
Abstract
Fifty normal mitral valves from adults were studied. Commissures, identified by commissural chordae tendineae and the tips of papillary muscles, partition the mitral valvular tissue into anterior and posterior leaflets. This definition incorporates into the posterior leaflet the structures formerly regarded as accessory leaflets. The posterior leaflet is further divided into scallops by clefts in its tissue. Cleft chordae provide a guide to these interscallop indentations or clefts. Partitioned this way, the posterior leaflet was tri-scalloped in 46 hearts. In 42, a large middle scallop was present with two smaller scallops on either side. Rough and clear zones can be defined on the anterior leaflet and rough, clear, and basal zones on the posterior leaflet.

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Citations
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Journal ArticleDOI

Hypertrophic cardiomyopathy. The importance of the site and the extent of hypertrophy. A review

TL;DR: The extent of hypertrophy is believed to be the principal determinant of the impaired left ventricular relaxation and increased chambers stiffness that characterize diastole in hypertrophic cardiomyopathy.
Journal ArticleDOI

Morphology of the Human Mitral Valve I. Chordae Tendineae: A New Classification

TL;DR: This classification permits a clear definition of mitral valve anatomy and forms a sound basis for functional studies of chordae tendineae.
Journal ArticleDOI

Patch enlargement of the aortic valve ring by extending the aortic incision into the anterior mitral leaflet. New operative technique.

TL;DR: This communication describes a new surgical procedure of enlarging the narrow aortic valve ring by extending theAortic incision through the fibrous origin of the aorti leaflet of the mitral valve into this leaflet, which permits the replacement of the anulus by a suitable prosthesis.
Journal ArticleDOI

Diversity of structural mitral valve alterations in hypertrophic cardiomyopathy.

TL;DR: These findings expand the morphological definition of HCM by demonstrating that the disease process is not confined to cardiac muscle but rather many patients also have structural abnormalities of the mitral valve that are unlikely to be acquired or secondary to mechanical factors.
References
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Journal ArticleDOI

Morphology of the Human Mitral Valve I. Chordae Tendineae: A New Classification

TL;DR: This classification permits a clear definition of mitral valve anatomy and forms a sound basis for functional studies of chordae tendineae.
Journal ArticleDOI

Prolapse of the mitral valve: clinical and cine-angiocardiographic findings.

TL;DR: Correlations of the cine-angiograms with phonocardiograms have provided a functional anatomical basis for the late onset of the murmur as well as the systolic click which was present in 3 of the patients.
Journal ArticleDOI

Aneurysmal protrusion of the posterior leaflet of the mitral valve. An auscultatory-electrocardiographic syndrome.

TL;DR: 5 patients with 5 patients with both of these auscultatory findings who had, in addition, electrocardiographic signs compatible with posteroinferior myocardial ischemia or infarction are described.
Journal ArticleDOI

Ballooning deformity (mucoid degeneration) of atrioventricular valves.

A Pomerance
- 01 May 1969 - 
TL;DR: A type of mitral incompetence associated with a peculiar deformity of the mitral valve that appears identical to the two cases described in 1958 by Fernex and Fernex as mucoid degeneration is reported.
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