Key result
Cadaveric tricuspid valves average ~12 cm in annular circumference, with the anterior leaflet consistently largest.
Why the study?
The tricuspid valve has morphological variability with significant implications for surgical and interventional procedures, making normative morphometric data on its three leaflets essential for valve repair, prosthetic design, and understanding functional tricuspid regurgitation.
Cross-Sectional (n=50)
No
Provides normative morphometric data on tricuspid valve dimensions and variability in an Indian cadaveric cohort to guide surgical valve repair, annuloplasty ring sizing, and transcatheter valve design.
Answers are grounded in this paper and cite their sources.
Provides normative anatomical references that may inform tricuspid prosthesis design, though cadaveric measurements should not yet change surgical sizing; leaves open in vivo physiological correlation.
Background: The tricuspid valve, situated between the right atrium and right ventricle, is a vital component of cardiac anatomy whose morphological variability has significant implications for surgical and interventional cardiac procedures.Anatomical knowledge of its three leaflets-anterior, posterior, and septal-is indispensable for effective valve repair, prosthetic valve design, and understanding functional tricuspid regurgitation.Aims & Objectives: To measure and compare the annular circumference, leaflet length, and leaflet height of the anterior, posterior, and septal leaflets of the tricuspid valve in human embalmed cadaveric hearts, and to establish normative morphometric data relevant to clinical and surgical practice. Materials and Methods:A descriptive cross-sectional anatomical study was conducted at Father Muller Medical College, Mangalore, Karnataka, on 50 embalmed human cadaveric hearts.Annular circumference, valve diameter, and the length and height of each leaflet were measured using a thread-and-scale method and measuring tape.Descriptive statistics including mean, standard deviation, and range were calculated for all parameters.Results: The annular circumference ranged from 8.9 to 15.3 cm (mean ± SD: 11.84 ± 1.42 cm) and valve diameter from 2.83 to 4.87 cm (mean: 3.75 ± 0.48 cm).The anterior leaflet was consistently the largest with a mean length of 4.82 ± 0.83 cm and height of 2.04 ± 0.23 cm.The septal leaflet showed intermediate dimensions, while the posterior leaflet was the smallest and most variable.Conclusion: Significant morphometric variability exists in the tricuspid valve across cadaveric specimens.The anterior leaflet was the largest in all measured parameters, while the posterior leaflet demonstrated the greatest variability.These findings provide normative data of practical value for cardiac surgeons, interventional cardiologists, and biomedical engineers involved in prosthetic valve design.
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A 2026 study conducted a cross-sectional in Normal tricuspid valve anatomy in embalmed human cadaveric hearts (n=50). Anatomical dissection and morphometric measurement of the tricuspid valve vs. Comparison across anterior, posterior, and septal tricuspid leaflets was evaluated on Tricuspid valve annular circumference (cm) and leaflet length and height (cm). Tricuspid valves in 50 cadaveric hearts had a mean annular circumference of 11.84±1.42 cm, with the anterior leaflet consistently largest (length 4.82±0.83 cm, height 2.04±0.23 cm).
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