Pesquisa epidemiologica da infecção por Trypanosoma cruzi no nordeste brasileiro utilizando-se diferentes métodos diagnósticos

A survey of the prevalence of Trypanosoma cruzi infection was carried out in Oitis, a small community in the State of Piaui, Brazil. Two hundred and sixty five individuals were screened by microscopic examination, hémoculture, indirect immunofluorescence (IFA), enzyme-linked immunosorbent assay (ELISA), and competitive enzyme-linked immunosorbent assay (C-ELISA) using the monoclonal antibody TCF87 against to a 25kd T. cruzi antigen. Seropositivity was 14.3% by the IFA test, 14.7% by ELISA, and 13.2% by C-ELISA. The C-ELISA using the TCF87 monoclonal antibody seems to be applicable in serodiagnosis of Chagas' disease.A prevalência da infecção pelo Trypanosoma cruzi foi pesquisada em Oitis, uma pequena comunidade do Estado do Piauí. Duzentos e sessenta e cinco indivíduos foram investigados pelos seguintes métodos: pesquisa direta, hemocultura, imunofluorescência indireta (IFA), teste imunoabsorvente ligado a enzima (ELISA), e ELISA de competição (C-ELISA) com a utilização do anticorpo monoclonal TCF87 contra um antígeno do T. cruzi com 25kd. A IFA foi positiva em 14,3% dos indivíduos, ELISA em 14,7% e C-ELISA em 13,2%. Este último teste mostrou-se aplicável no diagnóstico sorológico da Doença de Chagas

Left intraventricular dyssynchrony caused by a false tendon

Left ventricular (LV) false tendons are usually benign, intraventricular myocardial structures, which may cause functional malfunction or deformation of the LV cavity due to mechanical stretching and dilatation of the LV wall. We present a case of non-ischemic cardiomyopathy complicated with intraventricular dyssynchrony that was caused by complete left bundle branch block and the mechanical pressure exerted by the stiff false tendon on the weakened mid-septum during systole