Echocardiographic quantification of mitral valvular response to myocardial revascularization

Aims and Objectives: Mild and/or moderate ischemic mitral regurgitation (IMR) may resolve after isolated coronary artery bypass grafting (CABG). It has been shown that the loss of saddle shape of the mitral valve is associated with IMR and is determined by an increase in the nonplanarity angle (NPA)...

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Bibliographic Details
Published in:Annals of cardiac anaesthesia 2013-01, Vol.16 (1), p.23-27
Main Authors: Govindan, Sapna, Hayward, Geoffrey, Mahmood, Feroze, Subramaniam, Balachundhar
Format: Article
Language:English
Subjects:
Circularity index
Coronary artery bypass
Coronary revascularization
Ischemic mitral regurgitation
Mitral valve geometry
Nonplanarity angle
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Summary:Aims and Objectives: Mild and/or moderate ischemic mitral regurgitation (IMR) may resolve after isolated coronary artery bypass grafting (CABG). It has been shown that the loss of saddle shape of the mitral valve is associated with IMR and is determined by an increase in the nonplanarity angle (NPA). The aim of this prospective, observational study was to test the hypothesis that NPA might decrease immediately after CABG alone in patients with mild to moderate IMR. Materials and Methods: This prospective, observational study was conducted in an academic, tertiary care hospital. Twenty patients underwent 2D and 3D transoesophageal echocardiography (TEE) and mitral valve assessment before and immediately after the CABG. NPA, circularity index, and other geometric variables were obtained. They were compared using paired t test. The SPSS (Version 15.0, Chicago, IL, USA) was used for statistical analysis. P
ISSN:0971-9784
0974-5181
DOI:10.4103/0971-9784.105366