Original Research Article
Year: 2019 | Month: November | Volume: 6 | Issue: 11 | Pages: 590-596
Morphometric Analysis of Mitral Valve in Formalin Fixed Human Cadaveric Hearts
Dr. Shruthi B. N1, Miss. Nishanthi. T2, Miss. Monisha. R2, Dr. Satyamurthy. B3
1Professor and HOD Anatomy, Rajarajeswari Medical College and Hospital, Bengaluru, Karnataka.
2UG Student, Rajarajeswari Medical College and Hospital, Bengaluru, Karnataka.
3Dean, Rajarajeswari Medical College and Hospital, Bengaluru, Karnataka.
Corresponding Author: Dr. Shruthi B. N
ABSTRACT
Background: Mitral valvular pathology is the most important cause of mortality and morbidity in India. This study gives insight into the dimensions of mitral valve to surgeons who deal with valve replacements.
Materials and method: The present study was undertaken on the morphometry of the mitral orifice and cusps in 60 formalin fixed hearts. Various measurements like length, breadth and height of the cusps including the number of cusps and the circumference of the annulus were measured.
Results: Out of 60 cadaveric hearts studied,80% of the hearts(48) had 2 cusps,18.3% of the hearts(11) had 3 cusps,1.7% of the hearts(1)had 4 cusps. Mean circumference of the annulus was 7.68cm.Mean length of anterior cusp; posterior cusp, accessory cusp-1 and accessory cusp-2 were 2.26cm,2.16cm,1.31cm,1.2cm respectively. Mean breadth of anterior cusp, posterior cusp, accessory cusp-1 and accessory cusp-2 were 2.97cm, 3.02cm, 1.39cm, 1.4cm respectively. Mean height of anterior cusp, posterior cusp, accessory cusp-1and accessory cusp-2 were 1.72cm, 1.68cm, 1.3cm, 1cm respectively.
Conclusion: Mitral valve is the commonly affected valve of the heart. The morphometric analysis of the mitral annulus with its cusps is important in assessing various pathological conditions like mitral stenosis and regurgitation. In the present study it is evident that the number of cusps varies greatly and this morphometric analysis is useful for determining the size of the prosthetic valve. Hence, it is of immense importance to cardiologists and cardiothoracic surgeons who perform valvotomy, valve repair and prostatic valve replacements to be aware of these variations as an increase in the number of the cusp and their improper approximation causes various valvular disorders.
Key words: Cadaveric study, Cusps, Mitral valve, Mitral annulus & Morphometry.
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