Your browser doesn't support javascript.
Mostrar: 20 | 50 | 100
Resultados 1 - 3 de 3
Mais filtros

Base de dados
Intervalo de ano de publicação
Ann Thorac Surg ; 108(5): e325-e327, 2019 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-30926474


This case report describes a primary cardiac tumor, classified as venous malformation, diagnosed in an asymptomatic child. The tumor was located in the left atrium near the mitral valve without affecting the mitral valve's functioning. Complete resection of the lesion was performed because of the risk of systemic embolism. The lesion consisted of fibrous tissue with multiple venous vascular channels. The patient did not have similar lesions in other locations. Vascular primary cardiac tumors are extremely rare. Hemangiomas and lymphangiomas have been described previously, but to our knowledge, this is the first primary cardiac tumor identified as a venous malformation.

Clin Chem ; 53(5): 982-5, 2007 May.
Artigo em Inglês | MEDLINE | ID: mdl-17363421


BACKGROUND: Ischemic-reperfusion injury of the brain is a major adverse event after cardiac surgery, especially when extracorporeal circuits are used. Because brain injury induces local overproduction of activin A, we measured plasma concentrations in children after open heart surgery with cardiopulmonary bypass (CPB) to investigate the potential of measuring activin A for early identification of infants at risk for brain damage. METHODS: We evaluated 45 infants (age <1 year) with congenital heart defects: 36 without overt neurologic injury, and 9 with neurologic injury on day 7 after the surgical procedure. Blood samples were taken before surgery, during surgery before CPB, at the end of CPB, at the end of surgery, and at 12 h after surgery. Neurologic development was assessed before surgery and on postoperative day 7. RESULTS: Activin A concentrations increased significantly during surgery (P <0.0001) to a maximum at the end of CPB. Infants who developed abnormal neurologic sequelae had concentrations significantly higher (P <0.0001, all comparisons) than patients with normal neurologic outcome at all evaluated times, but not before surgery. Activin A had a sensitivity of 100% (95% CI, 66%-100%) and a specificity of 100% (95% CI, 90%-100%) as a single marker for predicting neurologic abnormalities (area under the ROC curve, 1.0). CONCLUSIONS: Activin A increases in children who experience poor neurologic outcomes after open heart surgery, and its assay may help in early identification of infants at risk for brain damage.

Ativinas/sangue , Encefalopatias/prevenção & controle , Procedimentos Cirúrgicos Cardíacos/efeitos adversos , Ponte Cardiopulmonar/efeitos adversos , Cardiopatias Congênitas/cirurgia , Traumatismo por Reperfusão/prevenção & controle , Biomarcadores/sangue , Encefalopatias/etiologia , Estudos de Casos e Controles , Feminino , Humanos , Imunoensaio , Lactente , Cuidados Intraoperatórios , Masculino , Valor Preditivo dos Testes , Traumatismo por Reperfusão/etiologia