RESUMO
Rapid atrial transesophageal stimulation is currently used to stop atrial flutter or tachycardia. We report a case complicated of ventricular fibrillation. It is possible to pace the ventricles by transesophageal stimulation in 2-10% of cases. The ventricular stimulation might be dangerous in patients with heart disease. Therefore, transesophageal stimulation must be performed in specialized environment.
Assuntos
Estimulação Cardíaca Artificial/efeitos adversos , Doenças das Valvas Cardíacas/complicações , Fibrilação Ventricular/etiologia , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Taquicardia/terapiaRESUMO
A case of the carcinoid syndrome with right heart involvement is reported. Echocardiography showed diffuse right ventricular disease with a pathological tricuspid valve. Doppler recordings of forward tricuspid blood flow showed changes suggesting abnormal right ventricular filling, the mechanisms of which are discussed.
Assuntos
Doença Cardíaca Carcinoide/fisiopatologia , Insuficiência da Valva Tricúspide/fisiopatologia , Valva Tricúspide/fisiopatologia , Função Ventricular Esquerda , Doença Cardíaca Carcinoide/complicações , Doença Cardíaca Carcinoide/diagnóstico por imagem , Ecocardiografia Doppler , Humanos , Masculino , Pessoa de Meia-Idade , Valva Tricúspide/diagnóstico por imagem , Insuficiência da Valva Tricúspide/diagnóstico por imagem , Insuficiência da Valva Tricúspide/etiologiaRESUMO
This study, based on 39 cases, confirms the value of two-dimensional echocardiography in the diagnosis of right ventricular infarction during the acute phase. This diagnosis is confirmed by the presence of abnormalities of the segmental kinetics always present in the inferior wall and less frequently in the anterior wall. The inferior part of the septum is affected in two thirds of cases. Right ventricular dilation is frequently observed, but is not constant. Two-dimensional echocardiography has a diagnostic sensitivity similar to that of isotope ventriculography, but greater than that of haemodynamic investigations. Finally, apart from the easy demonstration of complications (tricuspid incompetence, septal rupture, intracardiac thrombosis), two dimensional echocardiography can be used to evaluate right ventricular function.
