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	Provedor de dados BJMBR (1) Autor Bellabarba,G. (1) Casado,J. (1) Donis,J.H. (1) Dávila,D.F. (1) Navarro,A.E. (1) Torres,A. (1) Mais... Palavra-chave Chronic aortic insufficiency (1) Ejection fraction (1) Left ventricular systolic function (1) Parasympathetic nervous system (1) Valsalva maneuver (1) Tipo do documento Info:eu-repo/semantics/article (1) Ano 1997 (1) País Brazil (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Heart rate changes during the Valsalva maneuver in patients with isolated aortic insufficiency BJMBR Navarro,A.E.; Dávila,D.F.; Torres,A.; Bellabarba,G.; Donis,J.H.; Casado,J.. To determine the possible relationship between left ventricular dilatation and heart rate changes provoked by the Valsalva maneuver (Valsalva ratio), we studied 9 patients with isolated chronic aortic insufficiency. Left ventricular systolic function was assessed by two-dimensional echocardiography and cardiac catheterization. All patients were asymptomatic (functional class I of the New York Heart Association). The left ventricular internal diameters and volumes were significantly increased in all patients. The asymptomatic patients had either normal or slightly depressed ejection fraction (EF>0.40). The Valsalva ratio of these asymptomatic patients showed no significant correlation with the left ventricular volumes or with the left ventricular... Tipo: Info:eu-repo/semantics/article Palavras-chave: Valsalva maneuver; Parasympathetic nervous system; Left ventricular systolic function; Chronic aortic insufficiency; Ejection fraction. Ano: 1997 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997000900005 Registros recuperados: 1 Primeira ... 1 ... Última

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