000131452 001__ 131452
000131452 005__ 20240731103308.0
000131452 0247_ $$2doi$$a10.22489/CinC.2023.408
000131452 0248_ $$2sideral$$a136867
000131452 037__ $$aART-2023-136867
000131452 041__ $$aeng
000131452 100__ $$aGómez Fonseca, Neurys$$uUniversidad de Zaragoza
000131452 245__ $$aChanges in T-peak-to-T-end Morphology Measured by Time-Warping Are Associated with Ischemia-Induced Ventricular Fibrillation in a Porcine Model
000131452 260__ $$c2023
000131452 5060_ $$aAccess copy available to the general public$$fUnrestricted
000131452 5203_ $$aIn this work, we use a time-warping-based morphology variation index, dw , computed between the peak and the end of the T-wave, and assess its association with the occurrence of ventricular fibrillation (VF) episodes in ischemic conditions. ECG recordings from 26 pigs under- going a 40-minute coronary occlusion were analyzed. The dw series was obtained by quantifying the morphological differences between the final part of the T wave at different stages of the occlusion and a reference T wave in the control recording. During control recordings, dw remained stationary with a median value along each recording of 1.76 ms, IQR of 1.80, while during artery occlusion followed a well-marked gradual increasing trend as ischemia progressed, with median of 15.47 ms, IQR of 18.53. At the 20-to-25 min period from occlusion onset (and during 5 min prior to VF episode) d w averages in the VF group was significantly higher than in the non-VF group with median values of 40.0 (and 34.4) vs 7.8 (and 7.7) ms, with p-values of 0.002 (and 0.001), respectively. In conclusion, dynamic increases of the dw index during ischaemia progression in pigs are associated with VF occurrence.
000131452 536__ $$9info:eu-repo/grantAgreement/ES/AEI/PID2021-128972OA-I00$$9info:eu-repo/grantAgreement/ES/DGA-FSE/T39-20R$$9info:eu-repo/grantAgreement/ES/DGA/LMP141-21$$9info:eu-repo/grantAgreement/ES/MICINN/PID2019-104881RB-I00$$9info:eu-repo/grantAgreement/ES/MICINN/PID2019-105674RB-I00$$9info:eu-repo/grantAgreement/ES/MICINN/RYC2021-031413-I$$9info:eu-repo/grantAgreement/EUR/MICINN/TED2021-130459B-I00
000131452 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000131452 592__ $$a0.227$$b2023
000131452 593__ $$aComputer Science (miscellaneous)$$c2023
000131452 593__ $$aCardiology and Cardiovascular Medicine$$c2023
000131452 594__ $$a1.1$$b2023
000131452 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000131452 700__ $$0(orcid)0000-0003-4130-5866$$aRamírez, Julia$$uUniversidad de Zaragoza
000131452 700__ $$0(orcid)0000-0003-0226-4950$$aMartin-Yebra, Alba$$uUniversidad de Zaragoza
000131452 700__ $$aM. Demidova, Marina
000131452 700__ $$aPlatonov, Pyotr
000131452 700__ $$0(orcid)0000-0002-7503-3339$$aMartínez, Juan Pablo$$uUniversidad de Zaragoza
000131452 700__ $$0(orcid)0000-0003-3434-9254$$aLaguna, Pablo$$uUniversidad de Zaragoza
000131452 7102_ $$15008$$2800$$aUniversidad de Zaragoza$$bDpto. Ingeniería Electrón.Com.$$cÁrea Teoría Señal y Comunicac.
000131452 773__ $$g50 (2023), [4 pp.]$$pComput. cardiol.$$tComputing in Cardiology$$x2325-8861
000131452 8564_ $$s376534$$uhttps://zaguan.unizar.es/record/131452/files/texto_completo.pdf$$yPostprint
000131452 8564_ $$s2699150$$uhttps://zaguan.unizar.es/record/131452/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000131452 909CO $$ooai:zaguan.unizar.es:131452$$particulos$$pdriver
000131452 951__ $$a2024-07-31-09:38:36
000131452 980__ $$aARTICLE