Right ventricular bifocal stimulation in the treatment of dilated cardiomyopathy with heart failure
Autor(a) principal: | |
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Data de Publicação: | 1999 |
Outros Autores: | , , , , , , , , , , |
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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Arquivos Brasileiros de Cardiologia (Online) |
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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 |
_version_ |
1752126551220027392 |