Acessibilidade / Reportar erro

Tratamento cirúrgico da comunicação interventricular e rotura da parede livre do ventrículo esquerdo após infarto agudo do miocárdio e da disjunção atrioventricular após troca da valva mitral, empregando o dispositivo de isolamento ventricular (DIV):: estudo experimental

The rupture of the ventricular free wall, and the ventricular septal rupture are two catastrophic events that can complicate the outcome of acute myocardial infarction. The opportunity to use surgical treatment, the access to the ventricular septal rupture as well as the ideal surgical technique are very much discussed in the literature but the results are almost unanimous: an elevated mortality. The rupture of the posterior wall of the left ventricle after mitral valve replacement is not a rare complication and it is almost always fatal. Our objective is to discuss a new alternative for surgical treatment of those serious pathologies without the direct handling of the necrotic cardiac muscle. We developed and tested in animals (sheeps) the Ventricular Isolation Device. From 7/12/95 to 1/10/96, we implanted this device in 12 adult sheeps. During the first period of learning the surgical technique and developing the device, we operated on 7 animals, without success. On a second turn, we performed the procedure in 5 animals and by then the Ventricular Isolation Device was completely developed and the surgical technique already standardized, resulting in the survival of all animals with normal cardiac output, as shown by echocardiography and ventriculography. We observed the complet isolation of the ventricular cavity with the use of Ventricular Isolation Device and obtained the temporary treatment of those fatal pathologies.

Heart rupture; Heart rupture; Ventricular septal rupture; Heart assist devices; Heart ventricle


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