Prosthesis Mismatch in Mitral Valve Replacement with TTK-CHITRA Valves: A Retrospective Study
Journal Title: INTERNATIONAL JOURNAL OF SCIENTIFIC STUDY - Year 2017, Vol 5, Issue 2
Abstract
Introduction: Rheumatic heart disease remains the most common etiological factors for the signifi cant mitral valvular lesions. The treatment modalities include valve repair or replacement. Although repair techniques for mitral and tricuspid valvular lesions are well established, mitral valve replacement (MVR) remains the most common modality of treatment in many centers in our country with valve repairs are still in the emerging phase. Aim: This is a retrospective study in evaluation of patient-prosthesis mismatch (PPM) in MVR with TTK-CHITRA valves. Methods: Systolic pulmonary artery (PA) pressure measured by the Doppler echocardiography in our subset of patients after MVR. Mitral valve effective orifi ce area was determined by Doppler, by the continuity equation and indexed for body surface area. A study done by evaluating PPM for the valve implanted by the above criteria and post-operative regression or persistence of PA pressure, and other adverse surgical outcomes noted and inference was drawn. This study was done on 40 patients of MVR done in our institute from January 2016 to December 2016 retrospectively. Results: In our study of PPM in MVR with TTK-CHITRA valves of 40 patients, 6 patients had moderate PPM as defi ned by Dummensil. Patients with 23 sized valve and 14% of patients with 25 sized valves had PPM. Implantation of bigger-sized valves >25 sizes with patients with body surface area (BSA) >1.4 resulted in avoiding PPM in mitral position. Conclusion: Study shows that even small-sized valves (25) when implanted in patients with BSA of 1.3-1.4 does not produce PPM.
Authors and Affiliations
G Josephraj, Vijay Anand, P Rani, V T Siddharth, B Karthikeyan, Heber Anandan
Keywords
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