RESUMO
Breast cancer is the leading cancer diagnosis among women. Systematic use of mammography and other screening modalities can reduce mortality. The gap between potential benefit and clinical reality appears to be widening, however, as suggested by the fact that failure to diagnose is now the number one cause of malpractice lawsuits against physicians.
Assuntos
Neoplasias da Mama/diagnóstico , Neoplasias da Mama/prevenção & controle , Erros de Diagnóstico , Feminino , Seguimentos , Humanos , Imperícia , Mamografia , Pessoa de Meia-Idade , Educação de Pacientes como Assunto , Exame Físico , Relações Médico-Paciente , Qualidade da Assistência à Saúde , Gestão de Riscos , Estados UnidosRESUMO
6 clinically normal subjects underwent a 3-month physical conditioning program with the ejection fractions determined before and after physical conditioning using a scintillation probe. All subjects achieved a conditioning effect as evidenced by increased treadmill test duration after conditioning (mean duration before conditioning: 658 vs. 715 sec after conditioning; p less than 0.02). All 6 subjects increased resting ejection fractions after conditioning (mean ejection fraction before conditioning: 54.5 +/- 5.4%; mean ejection fraction after conditioning: 67.0 +/- 9.0%; p less than 0.01). Thus, an aerobic physical conditioning program appears to increase resting ejection fractions in normal subjects.
Assuntos
Débito Cardíaco , Educação Física e Treinamento , Aptidão Física , Função Ventricular , Adulto , Teste de Esforço , Feminino , Hemodinâmica , Humanos , MasculinoRESUMO
An example of aneurysmal concentration of 99mTc-pyrophosphate (Tc-PPi) is described. An abdominal aortic aneurysm was suspected when a rectilinear bone scan showed an abnormal paraspinal area of activity. The aneurysm was confirmed by ultrasonic examination. Conventional radiographic examination failed to reveal calcification within the aneurysm. Aneurysmal concentration of Tc-PPi should be considered in patients showing abnormal radioactivity in the region of vascular structures on radionuclide bone images.
Assuntos
Aneurisma Aórtico/diagnóstico , Cintilografia , Tecnécio , Idoso , Aorta Abdominal , Difosfatos , Feminino , HumanosRESUMO
Echocardiography (ECHO) and radionuclide cardiography have had a significant impact on pediatric cardiology because they have proved to be sensitive enough to permit early diagnosis of many forms of heart disease and in some cases to estimate its severity and to provide information concerning ventricular performance. An overview of the anatomic and functional information that can be obtained from these two methods will be presented first, followed by details concerning the indications for their use and their relative clinical value in various acquired and congenital heart diseases. We have stressed particularly those facets of pediatric cardiac disease that differ most from those in the adult.
