Beat-to-beat ventricular repolarization variability evaluated during acute myocardial ischemia

Autores
Valverde, Esteban Raul; Bertran, Guillermo Claudio; Arini, Pedro David
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Experimental and clinical studies have shown that beat-to-beat variability of ventricular repolarization morphology, which can be measured by T-wave spectral variance (TSV) index based on the 2D-FFT, is associated with an increased risk for developing malignant ventricular arrhythmias.In the present study we tested TSV index during percutaneous coronary intervention (PCI) procedure in the 12 standard ECG leads and in the orthogonal X, Y and Z leads. In addition, we analyzed the intraindividual and interindividual variations of TSV index, in order to determine reliable limits of significant repolarization variability due to an ischemic cardiac process. The study group consisted of 62 patients, in which two ECG controls and one ECG recording during PCI procedure were obtained. Results indicate that TSV index showed significant differences during PCI procedure respect to control situation in all ECG leads(p<0.0001).The relative change between PCI procedure and control situation increased up to almost 5 times in the precordial v3 lead. Moreover, TSV index presented a high stability in each patient and a significant larger variability between patients. Finally, we conclude that TSV index offers a robust tool for evaluating beat-to-beat repolarization variability during acute myocardial ischemia.
Fil: Valverde, Esteban Raul. Universidad de Buenos Aires. Facultad de Ingenieria. Instituto de Ingeniería Biomédica; Argentina
Fil: Bertran, Guillermo Claudio. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Médicas; Argentina
Fil: Arini, Pedro David. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Saavedra 15. Instituto Argentino de Matemática; Argentina. Universidad de Buenos Aires. Facultad de Ingenieria. Instituto de Ingeniería Biomédica; Argentina
Materia
Electrocardiography
T-Wave Spectral Variance
Ventricular Repolarization Heterogeneity
Ischemia
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/3382
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/3382
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Beat-to-beat ventricular repolarization variability evaluated during acute myocardial ischemiaValverde, Esteban RaulBertran, Guillermo ClaudioArini, Pedro DavidElectrocardiographyT-Wave Spectral VarianceVentricular Repolarization HeterogeneityIschemiahttps://purl.org/becyt/ford/2.2https://purl.org/becyt/ford/2Experimental and clinical studies have shown that beat-to-beat variability of ventricular repolarization morphology, which can be measured by T-wave spectral variance (TSV) index based on the 2D-FFT, is associated with an increased risk for developing malignant ventricular arrhythmias.In the present study we tested TSV index during percutaneous coronary intervention (PCI) procedure in the 12 standard ECG leads and in the orthogonal X, Y and Z leads. In addition, we analyzed the intraindividual and interindividual variations of TSV index, in order to determine reliable limits of significant repolarization variability due to an ischemic cardiac process. The study group consisted of 62 patients, in which two ECG controls and one ECG recording during PCI procedure were obtained. Results indicate that TSV index showed significant differences during PCI procedure respect to control situation in all ECG leads(p<0.0001).The relative change between PCI procedure and control situation increased up to almost 5 times in the precordial v3 lead. Moreover, TSV index presented a high stability in each patient and a significant larger variability between patients. Finally, we conclude that TSV index offers a robust tool for evaluating beat-to-beat repolarization variability during acute myocardial ischemia.Fil: Valverde, Esteban Raul. Universidad de Buenos Aires. Facultad de Ingenieria. Instituto de Ingeniería Biomédica; ArgentinaFil: Bertran, Guillermo Claudio. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Médicas; ArgentinaFil: Arini, Pedro David. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Saavedra 15. Instituto Argentino de Matemática; Argentina. Universidad de Buenos Aires. Facultad de Ingenieria. Instituto de Ingeniería Biomédica; ArgentinaElsevier2013-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/3382Valverde, Esteban Raul; Bertran, Guillermo Claudio; Arini, Pedro David; Beat-to-beat ventricular repolarization variability evaluated during acute myocardial ischemia; Elsevier; Biomedical Signal Processing And Control; 8; 8-2013; 869-8751746-8094enginfo:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/altIdentifier/doi/10.1016/j.bspc.2013.08.002info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:34:59Zoai:ri.conicet.gov.ar:11336/3382instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:34:59.375CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Beat-to-beat ventricular repolarization variability evaluated during acute myocardial ischemia
title Beat-to-beat ventricular repolarization variability evaluated during acute myocardial ischemia
spellingShingle Beat-to-beat ventricular repolarization variability evaluated during acute myocardial ischemia
Valverde, Esteban Raul
Electrocardiography
T-Wave Spectral Variance
Ventricular Repolarization Heterogeneity
Ischemia
title_short Beat-to-beat ventricular repolarization variability evaluated during acute myocardial ischemia
title_full Beat-to-beat ventricular repolarization variability evaluated during acute myocardial ischemia
title_fullStr Beat-to-beat ventricular repolarization variability evaluated during acute myocardial ischemia
title_full_unstemmed Beat-to-beat ventricular repolarization variability evaluated during acute myocardial ischemia
title_sort Beat-to-beat ventricular repolarization variability evaluated during acute myocardial ischemia
dc.creator.none.fl_str_mv Valverde, Esteban Raul
Bertran, Guillermo Claudio
Arini, Pedro David
author Valverde, Esteban Raul
author_facet Valverde, Esteban Raul
Bertran, Guillermo Claudio
Arini, Pedro David
author_role author
author2 Bertran, Guillermo Claudio
Arini, Pedro David
author2_role author
author
dc.subject.none.fl_str_mv Electrocardiography
T-Wave Spectral Variance
Ventricular Repolarization Heterogeneity
Ischemia
topic Electrocardiography
T-Wave Spectral Variance
Ventricular Repolarization Heterogeneity
Ischemia
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.2
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Experimental and clinical studies have shown that beat-to-beat variability of ventricular repolarization morphology, which can be measured by T-wave spectral variance (TSV) index based on the 2D-FFT, is associated with an increased risk for developing malignant ventricular arrhythmias.In the present study we tested TSV index during percutaneous coronary intervention (PCI) procedure in the 12 standard ECG leads and in the orthogonal X, Y and Z leads. In addition, we analyzed the intraindividual and interindividual variations of TSV index, in order to determine reliable limits of significant repolarization variability due to an ischemic cardiac process. The study group consisted of 62 patients, in which two ECG controls and one ECG recording during PCI procedure were obtained. Results indicate that TSV index showed significant differences during PCI procedure respect to control situation in all ECG leads(p<0.0001).The relative change between PCI procedure and control situation increased up to almost 5 times in the precordial v3 lead. Moreover, TSV index presented a high stability in each patient and a significant larger variability between patients. Finally, we conclude that TSV index offers a robust tool for evaluating beat-to-beat repolarization variability during acute myocardial ischemia.
Fil: Valverde, Esteban Raul. Universidad de Buenos Aires. Facultad de Ingenieria. Instituto de Ingeniería Biomédica; Argentina
Fil: Bertran, Guillermo Claudio. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones Médicas; Argentina
Fil: Arini, Pedro David. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Saavedra 15. Instituto Argentino de Matemática; Argentina. Universidad de Buenos Aires. Facultad de Ingenieria. Instituto de Ingeniería Biomédica; Argentina
description Experimental and clinical studies have shown that beat-to-beat variability of ventricular repolarization morphology, which can be measured by T-wave spectral variance (TSV) index based on the 2D-FFT, is associated with an increased risk for developing malignant ventricular arrhythmias.In the present study we tested TSV index during percutaneous coronary intervention (PCI) procedure in the 12 standard ECG leads and in the orthogonal X, Y and Z leads. In addition, we analyzed the intraindividual and interindividual variations of TSV index, in order to determine reliable limits of significant repolarization variability due to an ischemic cardiac process. The study group consisted of 62 patients, in which two ECG controls and one ECG recording during PCI procedure were obtained. Results indicate that TSV index showed significant differences during PCI procedure respect to control situation in all ECG leads(p<0.0001).The relative change between PCI procedure and control situation increased up to almost 5 times in the precordial v3 lead. Moreover, TSV index presented a high stability in each patient and a significant larger variability between patients. Finally, we conclude that TSV index offers a robust tool for evaluating beat-to-beat repolarization variability during acute myocardial ischemia.
publishDate 2013
dc.date.none.fl_str_mv 2013-08
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/3382
Valverde, Esteban Raul; Bertran, Guillermo Claudio; Arini, Pedro David; Beat-to-beat ventricular repolarization variability evaluated during acute myocardial ischemia; Elsevier; Biomedical Signal Processing And Control; 8; 8-2013; 869-875
1746-8094
url http://hdl.handle.net/11336/3382
identifier_str_mv Valverde, Esteban Raul; Bertran, Guillermo Claudio; Arini, Pedro David; Beat-to-beat ventricular repolarization variability evaluated during acute myocardial ischemia; Elsevier; Biomedical Signal Processing And Control; 8; 8-2013; 869-875
1746-8094
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.bspc.2013.08.002
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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