Key result
In 30 cadaveric hearts, two strut chordae were found in the anterior leaflet in all cases, and anterolateral commissural chorda spread to the commissural third in 100% of males and 86.7% of females.
Why the study?
The chordae tendineae form an important part of the atrioventricular apparatus connecting papillary muscles to valve leaflets, prompting a study of their gross morphology and potential gender differences in the left ventricle.
Observational (n=30)
This anatomical study details the gross morphology and gender differences of left ventricular chordae tendineae in a North West Indian population, providing baseline structural data.
May inform mitral valve repair planning; extends limited cadaveric data but requires in vivo validation.
The chordae tendineae form an important part of atrioventricular apparatus connecting papillary muscles to the valve leaflets. Gross morphology of the chordae tendineae of the left ventricle was studied, and any gender differences were noted. Material and methods: 30 grossly normal cadaveric fixed in 10% formalin were studied. An incision was given along left border of heart to open the left ventricle. Gross morphology of chordae tendineae were studied. Statistical analysis: In the anterior leaflet, two strut chordae were found in both males and females in all the cases. The posterior leaflet of mitral valve showed the presence of rough zone, cleft, and basal chordae. Cleft and basal chordae were seen only in the posterior leaflet of mitral valve and not in the anterior leaflet. The number of rough zone chordae was more in the posterior leaflet than other types of chordae, and they were always present. The extent of the spread of anterolateral commissural chorda was mainly to commissural 1/3 of valve leaflet. In males, the chorda spread to commissural 1/3 of leaflet in all the cases, while in females, it was so in 86.7% of cases only. Posteromedial commissural chorda was present in 96.7% of cases.
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Aulakh et al. (2020) conducted an observational in Grossly normal cadaveric hearts (n=30). In 30 cadaveric hearts, two strut chordae were found in the anterior leaflet in all cases, and anterolateral commissural chorda spread to the commissural third in 100% of males and 86.7% of females.
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