RESUMO
Radiofrequency (RF) catheter ablation is the curative treatment of choice for atrioventricular (AV) nodal reentrant tachycardia (AVNRT). Analogous to the development of surgical techniques, catheter ablation has evolved from AV nodal ablation to selective "fast" and "slow" pathway ablation. "Slow" ablation is now the method of choice because of the lower incidence of associated AV block. Though slow pathway ablation can be achieved with equal success using either the anatomic or the electrogram-guided approach, fewer applications of RF energy are required for the potential-guided technique.
Assuntos
Ablação por Cateter/métodos , Humanos , Taquicardia por Reentrada no Nó Atrioventricular/cirurgia , Resultado do TratamentoAssuntos
Adulto , Idoso , Dissecção Aórtica/diagnóstico por imagem , Angioplastia Coronária com Balão/instrumentação , Aneurisma Coronário/diagnóstico por imagem , Angiografia Coronária , Ponte de Artéria Coronária , Doença das Coronárias/diagnóstico por imagem , Oclusão de Enxerto Vascular/diagnóstico por imagem , Humanos , Masculino , Pessoa de Meia-Idade , Recidiva , StentsRESUMO
A retrospective analysis of 680 Percutaneous Transluminal Coronary Angioplasties (PTCA) performed from April 1986 to October 1990 revealed that 81 patients had PTCA performed on 86 totally occluded coronary arteries (1.06 lesions/patient). Four of the 86 were acute occlusions. Angiographic success in the group as a whole was achieved in 57 (66%). Multivariate analysis identified only the target vessel as a statistically significant factor predictive of angiographic success from among a host of clinical and angiographic morphologic variables. Left anterior descending artery lesions were identified with the highest success. In addition the duration of occlusion was significantly lower for the successfully versus the unsuccessfully dilated chronic occlusions.
Assuntos
Adulto , Idoso , Angioplastia Coronária com Balão/instrumentação , Angiografia Coronária , Desenho de Equipamento , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/diagnóstico por imagem , Estudos RetrospectivosRESUMO
A case of Von Hippel-Lindau's disease lacking the classical Lindau's tumour is reported. The uncommon features of this case are highlighted and the relevant literature is briefly outlined.