RESUMO
Implantation of the right internal mammary artery into the wall of the right ventricle has been performed in 48 patients whose cases have been followed up for longer than six months. The procedure was done at the same time as a left ventricular implantation or subsequent to this operation because of recurrence or persistence of symptoms. Relief of anginal pain has been achieved in 78% and of chronic left ventricular failure in 75%. Of the 40 patients who had already had one or more myocardial infarctions preoperatively, 36 are still alive, with an average survival of over 5 years.
Assuntos
Vasos Coronários/cirurgia , Artérias Torácicas/cirurgia , Adulto , Cineangiografia , Vasos Coronários/anatomia & histologia , Seguimentos , Ventrículos do Coração , Humanos , Métodos , Microcirculação , Pessoa de Meia-Idade , Infarto do Miocárdio/patologia , Infarto do Miocárdio/cirurgia , Complicações Pós-OperatóriasRESUMO
The left internal mammary artery implant combined with epicardiectomy and free omental graft provides three extra-coronary sources of blood. This operation tested in dogs with 92% main-stem occlusion of three coronary arteries protected 75% of the animals. Applied clinically in over 100 patients, the operation resulted in 90% improvement. To obtain complete myocardial revascularization, the right internal mammary artery has been used as a fourth source of extra-coronary blood. In 57 animals, the right internal mammary arteries were implanted into the anterior walls of the right ventricle; in 80% this vessel formed anastomoses with the right coronary tree, and in 65% with the right and left coronary arteriolar systems. Six patients are described who underwent right internal mammary artery implantation; five of these in addition had the combined operation of left internal mammary artery implant, epicardiectomy and free omental graft. All patients had completely blocked right coronary arteries; in addition, five had advanced disease of the left coronary arterial tree.
Assuntos
Bloqueio Cardíaco/cirurgia , Artérias Torácicas/transplante , Adulto , Animais , Doença das Coronárias/cirurgia , Feminino , Ventrículos do Coração/cirurgia , Humanos , Masculino , Pessoa de Meia-IdadeRESUMO
The indications for and the contraindications to total cardiac revascularization are described on the basis of the author's experience. The combined operation of internal mammary artery implant, epicardiectomy and free omental graft was performed on 62 patients. Of 45 who did not have angina at rest without exciting cause (Grade I) 39 showed improvement; 32 returned to full-time work, 18 of whom had been unable to work before operation. There were two operative deaths. Among the 17 patients who were "bed-chair cripples" (angina at rest without cause-Grade II), there was a 24% operative mortality (four deaths), but 76% of the survivors had marked improvement. Only one of this group had been working full-time preoperatively; now nine are working full-time.
