RESUMO
The diagnosis of ostial stenosis of the left main coronary artery is usually made by use of coronary angiography. However, positioning of the catheter across the obstruction may obscure this diagnosis during contrast injection. Although a damping of arterial pressure when the catheter enters the left coronary artery may suggest ostial stenosis, it may not be possible to make this diagnosis with certainty during cardiac catheterization. We report a series of four patients in whom the left coronary ostium and proximal left coronary arteries were visualized by means of transesophageal echocardiography. Both ostial narrowing by plaque and abnormally fast flow velocities were seen. In each case the echocardiographic findings contributed to the subsequent management of the patients.
Assuntos
Doença das Coronárias/diagnóstico por imagem , Ecocardiografia , Idoso , Idoso de 80 Anos ou mais , Angiografia Coronária , Vasos Coronários/diagnóstico por imagem , Ecocardiografia/métodos , Ecocardiografia Doppler , Feminino , Humanos , Masculino , Pessoa de Meia-IdadeAssuntos
Cardiopatias Congênitas/complicações , Doenças das Valvas Cardíacas/complicações , Prolapso da Valva Mitral/complicações , Prolapso da Valva Tricúspide/complicações , Adulto , Idoso , Idoso de 80 Anos ou mais , Ecocardiografia , Feminino , Átrios do Coração/anormalidades , Humanos , Masculino , Pessoa de Meia-IdadeRESUMO
The most superior portion of the right atrium is not well visualized by transthoracic echocardiography. This limits the ability of the technique to detect intracardiac disease in this area. We describe a 41-year-old man with a history of liposarcoma in whom transthoracic echocardiography was unable to elucidate a right atrial metastasis. Transesophageal echocardiography demonstrated the morphology and extent of the large right atrial mass. These findings were well correlated with both magnetic resonance imaging and surgery.
Assuntos
Ecocardiografia/métodos , Neoplasias Cardíacas/secundário , Lipossarcoma/secundário , Imageamento por Ressonância Magnética , Adulto , Esôfago , Átrios do Coração , Neoplasias Cardíacas/diagnóstico , Humanos , Lipossarcoma/diagnóstico , Masculino , Síndrome da Veia Cava Superior/diagnósticoRESUMO
A 74-year-old man underwent transesophageal echocardiography to evaluate the possibility of dissection of the descending aorta. The study demonstrated a round lumen that contained an echogenic mass mimicking aortic aneurysm with thrombus. However, computerized tomographic scanning identified the lumen as the pleural cavity containing a collapsed lung. The esophagus was on the right side of the spine, and the transesophageal technique could not visualize the descending aorta.
Assuntos
Aneurisma Aórtico/diagnóstico , Ecocardiografia/métodos , Atelectasia Pulmonar/diagnóstico , Trombose/diagnóstico , Idoso , Aorta Torácica , Diagnóstico Diferencial , Ecocardiografia Doppler , Esôfago , Humanos , Masculino , Pleura/diagnóstico por imagem , Pleura/patologia , Atelectasia Pulmonar/diagnóstico por imagem , Tomografia Computadorizada por Raios XRESUMO
The destructive potential of Pneumocystis carinii infection in patients with AIDS has been amply documented. This report describes a homosexual man with P. carinii pneumonia (PCP) complicated by pneumatocoeles and pneumomediastinum. The pneumomediastinum almost completely resolved with successful antimicrobial therapy. Pneumomediastinum, like pneumothorax, should be anticipated in patients with AIDS and PCP.
