IJAR.2017.350

Type of Article:  Original Research

Volume 5; Issue 3.3 (September 2017)

Page No.: 4405-4409

DOI: https://dx.doi.org/10.16965/ijar.2017.350

MORPHOLOGICAL AND MORPHOMETRICAL ANALYSIS OF MITRAL VALVE ANNULUS OF HEART IN HUMAN ADULT CADAVERS

N.Charanya 1, G. Rajathi *2, Vishali.N 3.

1,*2 Assistant Professor,  Department of Anatomy, Ponnaiyah Ramajayam Institute of Medical Sciences, Manamai – Nallur, Chennai, India.

3 Associate Professor, Department of Anatomy, Ponnaiyah Ramajayam Institute of Medical Sciences, Manamai – Nallur, Chennai, India.

Address for Correspondence: Dr. G. Rajathi, Assistant Professor,  Department of Anatomy,  Ponnaiyah Ramajayam Institute Of Medical Sciences, Manamai – Nallur, Ecr, Chennai – 603102, India. E-Mail: rajathi1010@gmail.com

ABSTRACT

Background:   Mitral / Left Atrio ventricular Orifice is almost vertical in diastole and 450 to the sagittal plane with slight forward tilt. Mitral annulus consists of a collagenous ring where the lamina fibrosa of the valve leaflets are attached. There is variation in the length of annular circumference in different studies due to racial difference.  According to previous reports mitral valve mean circumference is 9.0 cm in males; 7.2cm in females. The present study is aimed at studying the Morphology and morphometry of mitral valve annulus  by dissection method in South Indian adult population.

Materials and Methods:  A total of 60 adult hearts procured from cadavers of dissection hall from Department of Anatomy, SRM Medical College, Sri Ramachandra Medical College, Chennai, were used for study irrespective of sex and age above 50 years. The hearts were meticulously dissected by conventional dissection method to expose the mitral leaflets with the annulus, chordae and papillary muscles. The shape of the mitral orifice was observed. The length of the annulus was measured with the help of a thread and millimeter scale in all hearts.

Results and Conclusion: The overall prevalence of mean annular circumference  was found to be 8.86cm.  The data presented gives the dimensions of mitral valve which may be of interest to Anatomists and Surgeons. Knowledge of normal measurements of the component parts of the valve will help the surgeon during operation to assess the exact mechanical reason for valve insufficiency.

Key words: Mitral valve, Annulus, Atrio ventricular Orifice, Lamina fibrosa.

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Cite this article: N.Charanya, G. Rajathi, Vishali.N. MORPHOLOGICAL AND MORPHOMETRICAL ANALYSIS OF MITRAL VALVE ANNULUS OF HEART IN HUMAN ADULT CADAVERS. Int J Anat Res 2017;5(3.3):4405-4409. DOI: 10.16965/ijar.2017.350