RESUMO
Three-dimensional transesophageal echocardiography (3D TEE) has been used to guide the percutaneous repair of simple atrial septal defects (ASDs). There has been limited experience in using this imaging modality to guide complex ASD repair. In this report, we describe how 3D TEE was used to guide the repair of a complex, multifenestrated ASD. In a single view, 3D TEE provides a superior anatomic definition when compared to the traditional two-dimensional echocardiography. We believe that this emerging technology will play a critical role as the number and complexity of percutaneous techniques treating structural heart disease continue to rise. (Echocardiography 2010;27:590-593).
Assuntos
Ecocardiografia Tridimensional/métodos , Comunicação Interatrial/diagnóstico por imagem , Comunicação Interatrial/terapia , Dispositivo para Oclusão Septal , Ultrassonografia de Intervenção , Feminino , Fluoroscopia , Humanos , Pessoa de Meia-IdadeRESUMO
Carotid in-stent restenosis is a potential long-term sequela that may occur after carotid artery stenting. We report a single-center experience with this procedure and reviewed the database for individual patient characteristics and possible management options.
Assuntos
Artérias Carótidas/patologia , Estenose das Carótidas/patologia , Stents/efeitos adversos , Idoso , Idoso de 80 Anos ou mais , Artérias Carótidas/diagnóstico por imagem , Artérias Carótidas/cirurgia , Estenose das Carótidas/diagnóstico por imagem , Estenose das Carótidas/cirurgia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Recidiva , Fatores de Risco , UltrassonografiaRESUMO
Several contrast agents have been approved in the United States for radiographic imaging purposes. Most of the older ionic, high-osmolar contrast agents are no longer used because of their side effect profile. Therefore, newer nonionic, low or iso-osmolar contrast agents have been widely accepted as an alternative due to their improved tolerability and safety. We investigated the thrombogenicity of the 6 different nonionic radiocontrast media in terms of their platelet reactivity and noted some minor differences among them. In the 50% contrast concentration group, all of the nonionic contrast agents inhibited aggregation, whereas in the 10% contrast concentration group, all agents showed similar aggregation curves in comparison to the normal control. At 50% contrast concentration, the inhibitory effect of aggregation appeared to be related to the inhibition of calcium mobilization, which may be one of the mechanistic effects.