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Ann Card Anaesth ; 2013 Jan; 16(1): 23-27
Artigo em Inglês | IMSEAR | ID: sea-145388

RESUMO

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 <0.05 was considered significant. Results: The NPA was similar in the pre- and post-bypass periods (148° ± 15°, 148° ± 19°, P = 0.88). Circularity index (0.93 ± 0.13, 0.97 ± 0.11, P = 0.41) also was similar. Conclusions: There was no change in the mitral valve NPA with revascularization alone in patients with mild or moderate IMR. Mitral valve does not change its planarity (NPA) with revascularization alone in patients with IMR.


Assuntos
Ponte de Artéria Coronária/métodos , Ecocardiografia Tridimensional/métodos , Ecocardiografia Transesofagiana/métodos , Humanos , Valva Mitral/anatomia & histologia , Valva Mitral/fisiopatologia , Valva Mitral/diagnóstico por imagem , Insuficiência da Valva Mitral/etiologia , Insuficiência da Valva Mitral/diagnóstico por imagem , Revascularização Miocárdica/métodos , Pacientes , Intervenção Coronária Percutânea/métodos
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