Right ventricular bifocal stimulation in the treatment of dilated cardiomyopathy with heart failure

Detalhes bibliográficos
Autor(a) principal: Pachón Mateos,José Carlos
Data de Publicação: 1999
Outros Autores: Albornoz,Remy Nelson, Pachón Mateos,Enrique Indalécio, Gimenez,Vera Márcia, Pachón Mateos,Juán Carlos, Pachón,Maria Zélia Cunha, Santos Fº,Eusebio Ramos dos, Medeiros,Paulo de Tarso Jorge, Silva,Marco Aurélio Dias da, Paulista,Paulo Paredes, Sousa,José Eduardo Moraes Rêgo, Jatene,Adib Domingos
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Arquivos Brasileiros de Cardiologia (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0066-782X1999001200003
Resumo: OBJECTIVE: To describe a new more efficient method of endocardial cardiac stimulation, which produces a narrower QRS without using the coronary sinus or cardiac veins. METHODS: We studied 5 patients with severe dilated cardiomyopathy, chronic atrial fibrillation and AV block, who underwent definitive endocardial pacemaker implantation, with 2 leads, in the RV, one in the apex and the other in the interventricular septum (sub pulmonary), connected, respectively, to ventricular and atrial bicameral pacemaker outputs. Using Doppler echocardiography, we compared, in the same patient, conventional (VVI), high septal ("AAI") and bifocal ("DDT" with AV interval ~ 0) stimulation. RESULTS: The RV bifocal stimulation had the best results with an increase in ejection fraction and cardiac output and reduction in QRS duration, mitral regurgitation and in the left atrium area (p <= 0.01). The conventional method of stimulation showed the worst result. CONCLUSION: These results suggest that, when left ventricular stimulation is not possible, right ventricular bifocal stimulation should be used in patients with severe cardiomyopathy where a pacemaker is indicated.
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spelling Right ventricular bifocal stimulation in the treatment of dilated cardiomyopathy with heart failurepacemakermultisite stimulation and heart failureOBJECTIVE: To describe a new more efficient method of endocardial cardiac stimulation, which produces a narrower QRS without using the coronary sinus or cardiac veins. METHODS: We studied 5 patients with severe dilated cardiomyopathy, chronic atrial fibrillation and AV block, who underwent definitive endocardial pacemaker implantation, with 2 leads, in the RV, one in the apex and the other in the interventricular septum (sub pulmonary), connected, respectively, to ventricular and atrial bicameral pacemaker outputs. Using Doppler echocardiography, we compared, in the same patient, conventional (VVI), high septal ("AAI") and bifocal ("DDT" with AV interval ~ 0) stimulation. RESULTS: The RV bifocal stimulation had the best results with an increase in ejection fraction and cardiac output and reduction in QRS duration, mitral regurgitation and in the left atrium area (p <= 0.01). The conventional method of stimulation showed the worst result. CONCLUSION: These results suggest that, when left ventricular stimulation is not possible, right ventricular bifocal stimulation should be used in patients with severe cardiomyopathy where a pacemaker is indicated.Sociedade Brasileira de Cardiologia - SBC1999-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0066-782X1999001200003Arquivos Brasileiros de Cardiologia v.73 n.6 1999reponame:Arquivos Brasileiros de Cardiologia (Online)instname:Sociedade Brasileira de Cardiologia (SBC)instacron:SBC10.1590/S0066-782X1999001200003info:eu-repo/semantics/openAccessPachón Mateos,José CarlosAlbornoz,Remy NelsonPachón Mateos,Enrique IndalécioGimenez,Vera MárciaPachón Mateos,Juán CarlosPachón,Maria Zélia CunhaSantos Fº,Eusebio Ramos dosMedeiros,Paulo de Tarso JorgeSilva,Marco Aurélio Dias daPaulista,Paulo ParedesSousa,José Eduardo Moraes RêgoJatene,Adib Domingoseng2000-09-05T00:00:00Zoai:scielo:S0066-782X1999001200003Revistahttp://www.arquivosonline.com.br/https://old.scielo.br/oai/scielo-oai.php||arquivos@cardiol.br1678-41700066-782Xopendoar:2000-09-05T00:00Arquivos Brasileiros de Cardiologia (Online) - Sociedade Brasileira de Cardiologia (SBC)false
dc.title.none.fl_str_mv Right ventricular bifocal stimulation in the treatment of dilated cardiomyopathy with heart failure
title Right ventricular bifocal stimulation in the treatment of dilated cardiomyopathy with heart failure
spellingShingle Right ventricular bifocal stimulation in the treatment of dilated cardiomyopathy with heart failure
Pachón Mateos,José Carlos
pacemaker
multisite stimulation and heart failure
title_short Right ventricular bifocal stimulation in the treatment of dilated cardiomyopathy with heart failure
title_full Right ventricular bifocal stimulation in the treatment of dilated cardiomyopathy with heart failure
title_fullStr Right ventricular bifocal stimulation in the treatment of dilated cardiomyopathy with heart failure
title_full_unstemmed Right ventricular bifocal stimulation in the treatment of dilated cardiomyopathy with heart failure
title_sort Right ventricular bifocal stimulation in the treatment of dilated cardiomyopathy with heart failure
author Pachón Mateos,José Carlos
author_facet Pachón Mateos,José Carlos
Albornoz,Remy Nelson
Pachón Mateos,Enrique Indalécio
Gimenez,Vera Márcia
Pachón Mateos,Juán Carlos
Pachón,Maria Zélia Cunha
Santos Fº,Eusebio Ramos dos
Medeiros,Paulo de Tarso Jorge
Silva,Marco Aurélio Dias da
Paulista,Paulo Paredes
Sousa,José Eduardo Moraes Rêgo
Jatene,Adib Domingos
author_role author
author2 Albornoz,Remy Nelson
Pachón Mateos,Enrique Indalécio
Gimenez,Vera Márcia
Pachón Mateos,Juán Carlos
Pachón,Maria Zélia Cunha
Santos Fº,Eusebio Ramos dos
Medeiros,Paulo de Tarso Jorge
Silva,Marco Aurélio Dias da
Paulista,Paulo Paredes
Sousa,José Eduardo Moraes Rêgo
Jatene,Adib Domingos
author2_role author
author
author
author
author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Pachón Mateos,José Carlos
Albornoz,Remy Nelson
Pachón Mateos,Enrique Indalécio
Gimenez,Vera Márcia
Pachón Mateos,Juán Carlos
Pachón,Maria Zélia Cunha
Santos Fº,Eusebio Ramos dos
Medeiros,Paulo de Tarso Jorge
Silva,Marco Aurélio Dias da
Paulista,Paulo Paredes
Sousa,José Eduardo Moraes Rêgo
Jatene,Adib Domingos
dc.subject.por.fl_str_mv pacemaker
multisite stimulation and heart failure
topic pacemaker
multisite stimulation and heart failure
description OBJECTIVE: To describe a new more efficient method of endocardial cardiac stimulation, which produces a narrower QRS without using the coronary sinus or cardiac veins. METHODS: We studied 5 patients with severe dilated cardiomyopathy, chronic atrial fibrillation and AV block, who underwent definitive endocardial pacemaker implantation, with 2 leads, in the RV, one in the apex and the other in the interventricular septum (sub pulmonary), connected, respectively, to ventricular and atrial bicameral pacemaker outputs. Using Doppler echocardiography, we compared, in the same patient, conventional (VVI), high septal ("AAI") and bifocal ("DDT" with AV interval ~ 0) stimulation. RESULTS: The RV bifocal stimulation had the best results with an increase in ejection fraction and cardiac output and reduction in QRS duration, mitral regurgitation and in the left atrium area (p <= 0.01). The conventional method of stimulation showed the worst result. CONCLUSION: These results suggest that, when left ventricular stimulation is not possible, right ventricular bifocal stimulation should be used in patients with severe cardiomyopathy where a pacemaker is indicated.
publishDate 1999
dc.date.none.fl_str_mv 1999-12-01
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=S0066-782X1999001200003
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0066-782X1999001200003
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0066-782X1999001200003
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 Sociedade Brasileira de Cardiologia - SBC
publisher.none.fl_str_mv Sociedade Brasileira de Cardiologia - SBC
dc.source.none.fl_str_mv Arquivos Brasileiros de Cardiologia v.73 n.6 1999
reponame:Arquivos Brasileiros de Cardiologia (Online)
instname:Sociedade Brasileira de Cardiologia (SBC)
instacron:SBC
instname_str Sociedade Brasileira de Cardiologia (SBC)
instacron_str SBC
institution SBC
reponame_str Arquivos Brasileiros de Cardiologia (Online)
collection Arquivos Brasileiros de Cardiologia (Online)
repository.name.fl_str_mv Arquivos Brasileiros de Cardiologia (Online) - Sociedade Brasileira de Cardiologia (SBC)
repository.mail.fl_str_mv ||arquivos@cardiol.br
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