Abstract

Reoperation is the method of choice for correcting prosthetic paravalvular leaks. The percutaneous repair of mitral paravalvular leaks might represent an interesting alternative in select cases. The present study reports two cases of mitral paravalvular leaks that were treated with Amplatzer™ Vascular Plug III guided by three-dimensional (3D) transesophageal echocardiography, using the percutaneous approach. The first case involved a 55-year-old male who had undergone five cardiac surgeries (aortic and mitral valve replacements) and presented with New York Heart Association (NYHA) class III heart failure and severe mitral regurgitation. The second case was a 76-year-old male who had undergone two aortic valve replacements; the last procedure was associated with mitral valve replacement, which developed into NYHA class IV heart failure and severe mitral regurgitation. This patient had several comorbidities that increased his surgical risk. The procedures were performed percutaneously under general anaesthesia, using the transseptal approach to deploy the plugs, which occluded the paravalvular defects successfully in both cases. Correção de Regurgitação Paravalvar Mitral por Via Percutânea Guiada por Ecocardiograma Transesofágico Tridimensional A reoperação é o método de escolha para a correção de defeitos protéticos paravalvulares. A correção da regurgitação paravalvar mitral por via percutânea constitui uma alternativa interessante para casos selecionados. Relatamos dois casos com regurgitação paravalvar mitral, tratados por via percutânea, com prótese AmplatzerTM Vascular Plug III, guiados por ecocardiograma transesofágico tridimensional. No primeiro caso, o paciente, com 55 anos de idade, já havia sido submetido a tratamento cirúrgico por cinco vezes (trocas valvares aórtica e mitral) e evoluía com insuficiência cardíaca classe III da New York Heart Association (NYHA) e insuficiência mitral grave. No segundo caso, o paciente, com 76 anos de idade, tinha sido submetido a troca valvar aórtica por duas vezes, a última associada a troca valvar mitral, e evoluía em insuficiência cardíaca classe IV (NYHA) e regurgitação mitral grave, e várias comorbidades aumentavam seu risco cirúrgico. Os procedimentos foram realizados por via percutânea, sob anestesia geral, utilizando-se a via transeptal para o implante dos plugs, que ocluíram os defeitos paravalvares com sucesso em ambos os casos.

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