Heart rate changes during the Valsalva maneuver in patients with isolated aortic insufficiency

Detalhes bibliográficos
Autor(a) principal: Navarro,A.E.
Data de Publicação: 1997
Outros Autores: Dávila,D.F., Torres,A., Bellabarba,G., Donis,J.H., Casado,J.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Medical and Biological Research
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997000900005
Resumo: 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 ejection fraction. In other words, parasympathetic heart rate control, as expressed by the Valsalva ratio, was normal in the asymptomatic patients with left ventricular dilatation and preserved left ventricular ejection fraction. Therefore, left ventricular dilatation may not be the major mechanism responsible for the abnormal parasympathetic heart rate control of patients with acquired heart disease
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spelling Heart rate changes during the Valsalva maneuver in patients with isolated aortic insufficiencyValsalva maneuverparasympathetic nervous systemleft ventricular systolic functionchronic aortic insufficiencyejection fractionTo 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 ejection fraction. In other words, parasympathetic heart rate control, as expressed by the Valsalva ratio, was normal in the asymptomatic patients with left ventricular dilatation and preserved left ventricular ejection fraction. Therefore, left ventricular dilatation may not be the major mechanism responsible for the abnormal parasympathetic heart rate control of patients with acquired heart diseaseAssociação Brasileira de Divulgação Científica1997-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997000900005Brazilian Journal of Medical and Biological Research v.30 n.9 1997reponame:Brazilian Journal of Medical and Biological Researchinstname:Associação Brasileira de Divulgação Científica (ABDC)instacron:ABDC10.1590/S0100-879X1997000900005info:eu-repo/semantics/openAccessNavarro,A.E.Dávila,D.F.Torres,A.Bellabarba,G.Donis,J.H.Casado,J.eng1998-10-07T00:00:00Zoai:scielo:S0100-879X1997000900005Revistahttps://www.bjournal.org/https://old.scielo.br/oai/scielo-oai.phpbjournal@terra.com.br||bjournal@terra.com.br1414-431X0100-879Xopendoar:1998-10-07T00:00Brazilian Journal of Medical and Biological Research - Associação Brasileira de Divulgação Científica (ABDC)false
dc.title.none.fl_str_mv Heart rate changes during the Valsalva maneuver in patients with isolated aortic insufficiency
title Heart rate changes during the Valsalva maneuver in patients with isolated aortic insufficiency
spellingShingle Heart rate changes during the Valsalva maneuver in patients with isolated aortic insufficiency
Navarro,A.E.
Valsalva maneuver
parasympathetic nervous system
left ventricular systolic function
chronic aortic insufficiency
ejection fraction
title_short Heart rate changes during the Valsalva maneuver in patients with isolated aortic insufficiency
title_full Heart rate changes during the Valsalva maneuver in patients with isolated aortic insufficiency
title_fullStr Heart rate changes during the Valsalva maneuver in patients with isolated aortic insufficiency
title_full_unstemmed Heart rate changes during the Valsalva maneuver in patients with isolated aortic insufficiency
title_sort Heart rate changes during the Valsalva maneuver in patients with isolated aortic insufficiency
author Navarro,A.E.
author_facet Navarro,A.E.
Dávila,D.F.
Torres,A.
Bellabarba,G.
Donis,J.H.
Casado,J.
author_role author
author2 Dávila,D.F.
Torres,A.
Bellabarba,G.
Donis,J.H.
Casado,J.
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Navarro,A.E.
Dávila,D.F.
Torres,A.
Bellabarba,G.
Donis,J.H.
Casado,J.
dc.subject.por.fl_str_mv Valsalva maneuver
parasympathetic nervous system
left ventricular systolic function
chronic aortic insufficiency
ejection fraction
topic Valsalva maneuver
parasympathetic nervous system
left ventricular systolic function
chronic aortic insufficiency
ejection fraction
description 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 ejection fraction. In other words, parasympathetic heart rate control, as expressed by the Valsalva ratio, was normal in the asymptomatic patients with left ventricular dilatation and preserved left ventricular ejection fraction. Therefore, left ventricular dilatation may not be the major mechanism responsible for the abnormal parasympathetic heart rate control of patients with acquired heart disease
publishDate 1997
dc.date.none.fl_str_mv 1997-09-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997000900005
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997000900005
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0100-879X1997000900005
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Associação Brasileira de Divulgação Científica
publisher.none.fl_str_mv Associação Brasileira de Divulgação Científica
dc.source.none.fl_str_mv Brazilian Journal of Medical and Biological Research v.30 n.9 1997
reponame:Brazilian Journal of Medical and Biological Research
instname:Associação Brasileira de Divulgação Científica (ABDC)
instacron:ABDC
instname_str Associação Brasileira de Divulgação Científica (ABDC)
instacron_str ABDC
institution ABDC
reponame_str Brazilian Journal of Medical and Biological Research
collection Brazilian Journal of Medical and Biological Research
repository.name.fl_str_mv Brazilian Journal of Medical and Biological Research - Associação Brasileira de Divulgação Científica (ABDC)
repository.mail.fl_str_mv bjournal@terra.com.br||bjournal@terra.com.br
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