Straddling tricuspid valve as a sign of ventriculoatrial malalignment: A morphometric study of 19 postmortem cases

AbstractModerator band is a muscular trabecula which extends from interventricular septal wall to the base of anterior papillary muscle in right ventricle of heart. This study was conducted on 20 hearts from adult human cadavers. Out of 20 specimens of heart we could observe the presence of moderator band in 17 and in rest 3 it was not visible for record. Origin length, thickness and distance from tricuspid valve were noted. The average length of the moderator band was 13.82cm with the SD of 3.94 and the average thickness being 4.46cm with the SD of 1.36. The average distance from tricuspid valve was 3.6cm with the SD of 1.01. As the moderator bands, or other large trabeculations, can be major obstacle for the repair of apical ventricular septal defects, the morphometric study of moderator band may help the surgeons during surgical procedures conducted for correction of such defects.

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Measurement of the Tricuspid and the Mitral Valve in Adult Human Heart: A Cadaveric Study

Nepal Medical College Journal ◽

10.3126/nmcj.v20i4.25128 ◽

2018 ◽

Vol 20 (4) ◽

pp. 121-127

Author(s):

Chhiring Palmu Lama ◽

A. Pradhan ◽

U. Chalise ◽

S. Dhungel ◽

S.K. Ghosh

Keyword(s):

Mitral Valve ◽

Tricuspid Valve ◽

Prosthetic Valve ◽

Human Heart ◽

Heart Valves ◽

Morphometric Study ◽

Common Disease ◽

Mitral Valves ◽

Mean Diameter ◽

The Mean

The human heart valve is an integral structure and the valvular heart disease is one of the most common disease of the heart. Such cardiac disease require repair of the valve and valve replacement surgery where the patient’s diseased valve is replaced by a prosthetic valve. The aim of this study was to measure the annular circumferences and diameters of tricuspid and mitral valves in cadavers. A morphometric study was conducted in Department of Anatomy at Nepal Medical College and Teaching Hospital where total 50 cadaveric hearts were taken up for the study. The tricuspid and the mitral valves were exposed by dissection method. Measurements were taken by using a thread and a digital vernier caliper and obtained data were analysed by using SPSS-16. The mean, frequency and standard deviation of circumferences and diameters of both tricuspid and the mitral valves were analysed and were found as (a) The mean annular circumference of tricuspid valve was 11.22 ± 0.20 cm (b) The mean diameter of tricuspid valve was 2.33 ± 0.04 cm. (c) The mean annular circumference of mitral valve was 9.22 ± 1.49 cm (d) the mean diameter of mitral valve was 2.01 ± 0.27 cm. There were few literatures available on the study of cadaveric heart valves in Nepal thus this study will provide a guideline to the clinicians, radiologists and also to cardiothoracic surgeons performing various valve surgeries to assess the prosthetic valve of appropriate size and to the anthropologists also to maintain a standardized data on cardiac valves as well.

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Morphometric study on papillary muscles of human tricuspid valve-dissection method

Indian Journal of Clinical Anatomy and Physiology ◽

10.18231/j.ijcap.2021.043 ◽

2021 ◽

Vol 8 (3) ◽

pp. 190-193

Author(s):

Chandragirish S ◽

Harsha B R ◽

Girish V Patil

Keyword(s):

Tricuspid Valve ◽

Human Heart ◽

Morphometric Study ◽

Papillary Muscles ◽

Mean Width ◽

Length Width ◽

Valve Diseases ◽

Standard Techniques ◽

Modern Technologies ◽

Formalin Fixed

Aim of the present study was to observe the measurements of anterior papillary muscles present in tricuspid valve of human heart. Measurements of anterior papillary muscles in tricuspid valve gains utmost importance in cardiac surgeries because they are the causes of myocardial infarction in recent times because of its variations and detection of these causes by advent in modern technologies which will help in treatment of tricuspid valve diseases. This study was carried out on 96 normal formalin fixed human heart specimens. Dissection was performed according to standard techniques. Anterior papillary muscles were observed and length, width and thickness of each muscle were measured and documented. In the present study, numbers of anterior papillary muscles were present with a frequency of 1-3, with most common appearance of 1 muscle in 66 hearts (68.8%) and least common incidence of 3 muscles in 6 hearts (6.3%). Anterior papillary muscles were present in all 96 hearts. In measurements, anterior papillary muscles mean height was 1.49±0.44 cm; mean width was 0.82±0.21 cm and mean thickness was 0.64±0.15 cm respectively. We hope this study will serve to understand the morphometry of anterior papillary muscles better and will help in various surgical procedures and cardiac treatment done on tricuspid valve.

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Gender differences in the dimensions of tricuspid valve orifice and leaflets in the Bangladeshi population - a morphometric study

Bangladesh Journal of Medical Science ◽

10.3329/bjms.v20i2.51545 ◽

2021 ◽

Vol 20 (2) ◽

pp. 342-347

Author(s):

Lubna Shirin ◽

Mohammed Shahjahan Kabir ◽

Humaira Naushaba ◽

Mohammed Nasimul Islam ◽

SM Niazur Rahman ◽

...

Keyword(s):

Tricuspid Valve ◽

Medical Science ◽

Morphometric Study ◽

Specific Difference ◽

Men And Women ◽

Medical College ◽

Valve Orifice ◽

Significant Difference ◽

Bangladeshi Population ◽

Anterior Posterior

Background: The present study aims to measure the circumference, length, and breadth of thedifferent leaflets of the tricuspid valve orifice in men and women to enable improved treatmentand management for cardiac patients in future. Materials and methods: In this cross-sectionalstudy, samples of the cadaveric heart (41 male, 19 female, and age ranging between 20 and70 years) were collected within 12–24 hours of death from unclaimed dead bodies that wereautopsied in the morgues of Sir Salimullah Medical College (SSMC) and Dhaka Medical College(DMC), Dhaka, Bangladesh. Unpaired t-test was conducted to determine significant genderdifferences using SPSS 16. Results: There were no significant difference in the circumference,length, and breadth of the anterior, posterior, and septal leaflets of tricuspid valves between menand women. Conclusion :The circumference, length, and breadth of the anterior, posterior,and septal leaflets of tricuspid valves are similar between men and women in the Bangladeshipopulation. Therefore, there will be no specific difference in the surgical and therapeutictreatment for men and women. Bangladesh Journal of Medical Science Vol.20(2) 2021 p.342-347

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