Supplementary Files
Keywords
mitral regurgitation;
mitral stenosis;
ventricular ejection fraction.
How to Cite
Abstract
Introduction: Following mitral valve replacement, adaptation of left ventricle depends upon the annulo-ventricular continuity. Artificial chordal reconstruction has been mentioned as means to maintain annulo-ventricular continuity in patients in whom total chord preservation is not feasible.
Objective: This study aimed to compare the difference in left ventricle internal diameter in diastole and systole, ejection fraction and pulmonary artery systolic pressure after six months of surgery, in patients undergoing posterior chords preserving mitral valve replacement with mitral valve replacement with posterior chord preservation and neochord reconstruction at the anterior mitral annulus.
Methodology: A comparative observational study was conducted from 2019 December to 2020 December) at Manmohan Cardiothoracic and Vascular and Transplant Centre after ethical approval using convenience sampling. A total of 30 patients were divided into two groups: Posterior preservation and artificial neochord reconstruction (Group I) versus Posterior Chord preservation (Group II). Echocardiographic measurement of left ventricle internal diameter in diastole and systole, ejection fraction, pulmonary artery systolic pressure was done preoperatively, after seventh post-operative day and sixth post-operative month.
Result: Left ventricle internal diameter in diastole in Group I and Group II were 43±2.96 mm and 48.93±4.94 mm (p=0.01) and in systole in Group 1 and Group 2 were 29.26±2.96 mm and 35.93±5.23 mm (p=0.01) at six months. There were no significant differences in left ventricle ejection fraction and pulmonary artery systolic pressure after six months of surgery.
Conclusion: Mitral valve replacement with artificial neochord reconstruction resulted in decrease in left ventricle internal diameter in diastole and systole after six months of surgery.
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