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dc.contributor.author
Ortega, Daniel F.
dc.contributor.author
Barja, Luis D.
dc.contributor.author
Logarzo, Emilio
dc.contributor.author
Mangani, Nicolas
dc.contributor.author
Paolucci, Analia
dc.contributor.author
Bonomini, Maria Paula
dc.date.available
2018-05-03T15:11:03Z
dc.date.issued
2017-05
dc.identifier.citation
Ortega, Daniel F.; Barja, Luis D.; Logarzo, Emilio; Mangani, Nicolas; Paolucci, Analia; et al.; Non-selective His bundle pacing with a biphasic waveform: enhancing septal resynchronization; Oxford University Press; Europace; 5-2017; 1-24
dc.identifier.issn
1099-5129
dc.identifier.uri
http://hdl.handle.net/11336/43946
dc.description.abstract
Aims: His bundle pacing has shown to prevent detrimental effects from right ventricular apical pacing (RVA) and proved to resynchronize many conduction disturbances cases. However, the extent of His bundle pacing resynchronization is limited. An optimized stimulation waveform could expand this limit when implemented in His bundle pacing sets. In this work, we temporarily implemented RVA and Non-selective His bundle pacing with a biphasic anodal-first waveform (AF-nHB) and compared their effects against sinus rhythm (SR). Methods and results: Fifteen patients referred for electrophysiologic study with conduction disturbances, cardiomyopathy and ejection fraction below 35% were enrolled for the study. The following acute parameters were measured: QRS duration, left ventricular activation (RLVT), time of isovolumic contraction (IVCT), ejection fraction (EF), and dP/dtmax. QRS duration and RLVT decreased markedly under AF-nHB (SR: 169 ± 34 ms vs. nHB: 116 ± 31 ms, P < 0.0005) while RVA significantly increased QRS duration (SR: 169 ms vs. RVA: 198 ms, P < 0.05) and did not change RLVT (P = NS). Consistently, IVCT moderately decreased under AF-nHB (SR: 238 ms vs. RVA: 184 ms, P < 0.05 vs. SR) and dP/dtmax showed a 93.35 [mmHg] average increase under AF-nHB against SR. Also, T-wave inversions were observed during AF-nHB immediately after SR and RVA pacing suggesting the occurrence of cardiac memory. Conclusions: AF-nHB corrected bundle branch blocks in patients with severe conduction disturbances, even in those with dilated cardiomiopathy, outstanding from RVA. Also, the occurrence of cardiac memory during AF-nHB turned up as an observational finding of this study.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Oxford University Press
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
His Bundle Pacing
dc.subject
Severe Conduction Disturbances
dc.subject
Resynchronization
dc.subject
Biphasic Waveform
dc.title
Non-selective His bundle pacing with a biphasic waveform: enhancing septal resynchronization
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-04-27T20:02:49Z
dc.journal.pagination
1-24
dc.journal.pais
Reino Unido
dc.journal.ciudad
Oxford
dc.description.fil
Fil: Ortega, Daniel F.. Clínica San Camilo; Argentina. Hospital Universitario Austral; Argentina
dc.description.fil
Fil: Barja, Luis D.. Clínica San Camilo; Argentina. Hospital Universitario Austral; Argentina
dc.description.fil
Fil: Logarzo, Emilio. Clínica San Camilo; Argentina. Hospital Universitario Austral; Argentina
dc.description.fil
Fil: Mangani, Nicolas. Clínica San Camilo; Argentina. Hospital Universitario Austral; Argentina
dc.description.fil
Fil: Paolucci, Analia. Clínica San Camilo; Argentina. Hospital Universitario Austral; Argentina
dc.description.fil
Fil: Bonomini, Maria Paula. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Saavedra 15. Instituto Argentino de Matemática Alberto Calderón; Argentina. Universidad de Buenos Aires. Facultad de Ingeniería; Argentina
dc.journal.title
Europace
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1093/europace/eux098
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/europace/advance-article-abstract/doi/10.1093/europace/eux098/3831276
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