Show simple item record

dc.contributor.authorPorta-Sanchez, Andreu 
dc.contributor.authorMagtibay, Karl
dc.contributor.authorNayyar, Sachin
dc.contributor.authorBhaskaran, Abhishek
dc.contributor.authorLai, Patrick F H
dc.contributor.authorMassé, Stéphane
dc.contributor.authorLabos, Christopher
dc.contributor.authorQiang, Beiping
dc.contributor.authorRomagnuolo, Rocco
dc.contributor.authorMasoudpour, Hassan
dc.contributor.authorBiswas, Labonny
dc.contributor.authorGhugre, Nilesh
dc.contributor.authorLaflamme, Michael
dc.contributor.authorDeno, Don Curtis
dc.contributor.authorNanthakumar, Kumaraswamy
dc.date.accessioned2019-07-30T09:08:58Z
dc.date.available2019-07-30T09:08:58Z
dc.date.issued2019-02-04
dc.identifier.citationEuropace. 2019; 21(5):813-21es_ES
dc.identifier.issn1099-5129es_ES
dc.identifier.urihttp://hdl.handle.net/20.500.12105/7995
dc.description.abstractAims : Bipolar electrogram (BiEGM)-based substrate maps are heavily influenced by direction of a wavefront to the mapping bipole. In this study, we evaluate high-resolution, orientation-independent peak-to-peak voltage (Vpp) maps obtained with an equi-spaced electrode array and omnipolar EGMs (OTEGMs), measure its beat-to-beat consistency, and assess its ability to delineate diseased areas within the myocardium compared against traditional BiEGMs on two orientations: along (AL) and across (AC) array splines. Methods and results: The endocardium of the left ventricle of 10 pigs (three healthy and seven infarcted) were each mapped using an Advisor™ HD grid with a research EnSite Precision™ system. Cardiac magnetic resonance images with late gadolinium enhancement were registered with electroanatomical maps and were used for gross scar delineation. Over healthy areas, OTEGM Vpp values are larger than AL bipoles by 27% and AC bipoles by 26%, and over infarcted areas OTEGM Vpp values are 23% larger than AL bipoles and 27% larger than AC bipoles (P < 0.05). Omnipolar EGM voltage maps were 37% denser than BiEGM maps. In addition, OTEGM Vpp values are more consistent than bipolar Vpps showing less beat-by-beat variation than BiEGM by 39% and 47% over both infarcted and healthy areas, respectively (P < 0.01). Omnipolar EGM better delineate infarcted areas than traditional BiEGMs from both orientations. Conclusion: An equi-spaced electrode grid when combined with omnipolar methodology yielded the largest detectable bipolar-like voltage and is void of directional influences, providing reliable voltage assessment within infarcted and non-infarcted regions of the heart.es_ES
dc.description.sponsorshipThis work was funded by Abbott Laboratories, St. Paul, MN, USA.es_ES
dc.language.isoenges_ES
dc.publisherOxford Academic Presses_ES
dc.relation.isversionofPublisher's versiones_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.titleOmnipolarity applied to equi-spaced electrode array for ventricular tachycardia substrate mappinges_ES
dc.typeArtículoes_ES
dc.rights.licenseAtribución-NoComercial 4.0 Internacional*
dc.identifier.pubmedID30726937es_ES
dc.format.volume21es_ES
dc.format.number5es_ES
dc.format.page821es_ES
dc.identifier.doi10.1093/europace/euy304es_ES
dc.contributor.funderAbbott
dc.description.peerreviewedes_ES
dc.identifier.e-issn1532-2092es_ES
dc.relation.publisherversionhttps://doi.org/10.1093/europace/euy304es_ES
dc.identifier.journalEuropace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiologyes_ES
dc.repisalud.orgCNICCNIC::Grupos de investigación::Cardiología Moleculares_ES
dc.repisalud.institucionCNICes_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses_ES


Files in this item

Acceso Abierto
Thumbnail
Acceso Abierto
Thumbnail
Acceso Abierto
Thumbnail
Acceso Abierto
Thumbnail
Acceso Abierto
Acceso Abierto
Acceso Abierto
Acceso Abierto

This item appears in the following Collection(s)

Show simple item record

Atribución-NoComercial 4.0 Internacional
This item is licensed under a: Atribución-NoComercial 4.0 Internacional