000165365 001__ 165365
000165365 005__ 20260107201858.0
000165365 0247_ $$2doi$$a10.1016/j.hrthm.2021.05.023
000165365 0248_ $$2sideral$$a146814
000165365 037__ $$aART-2021-146814
000165365 041__ $$aeng
000165365 100__ $$0(orcid)0000-0001-9187-1773$$aB, Jáuregui
000165365 245__ $$aImpact of a Pre-defined Pacemapping Protocol Use for Ablation of Infrequent Premature Ventricular Complexes: A Prospective, Multicenter Study.
000165365 260__ $$c2021
000165365 5060_ $$aAccess copy available to the general public$$fUnrestricted
000165365 5203_ $$aBackground
Pacemapping (PM) is a useful maneuver for aiding premature ventricular complex (PVC) ablation. Its standalone clinical value is still to be defined.
Objectives
The purpose of this study was to analyze the efficacy of a predefined PM protocol for low-burden PVC ablation, regardless of their site of origin (SOO) and the presence of structural heart disease.
Methods
This was a prospective, nonrandomized, multicenter study. The PM protocol was performed when <1 PVC/min was found. The “target area” was delimited by the 3 best matching points >94% correlation, and 3 radiofreqency (RF) applications were delivered.
Results
Of 185 patients, 105 (57%) underwent activation mapping, 60 (32%) were PM-guided, and 20 (11%) were canceled due to absence of PVCs. Baseline QRS, PVC burden, and outflow tract origin were independent predictors of PM-guided ablation. A higher proportion of right ventricular outflow tract SOO in the PM group (52% vs 40%; P = .03) was observed. Mean target area was 0.6 ± 0.9 cm2. Mean 10-ms isochronal area in local activation time (LAT)-guided procedures was higher (1.7 ± 2.3 cm2; P <.001). Mean number of PM matching points acquired was 39 ± 21 (range 6–98). Mean mapping and RF times were similar in both groups. However, significantly shorter procedural (53 ± 24 vs 61 ± 26 minutes; P = .04) as well as RF times (111 ± 51 vs 149 ± 149 seconds; P = .05) were needed in the PM group using the proposed protocol. Global clinical success reached 87% for the PM group and 90% (P = .58) the for LAT mapping group.
Conclusion
When LAT mapping is precluded, application of a PM-guided ablation protocol directed to >94% matching correlation target area is a more efficient alternative with comparable clinical results.
ed to >94% matching correlation target area is a more efficient alternative with comparable clinical results.
000165365 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
000165365 590__ $$a6.779$$b2021
000165365 591__ $$aCARDIAC & CARDIOVASCULAR SYSTEMS$$b36 / 143 = 0.252$$c2021$$dQ2$$eT1
000165365 592__ $$a2.402$$b2021
000165365 593__ $$aPhysiology (medical)$$c2021$$dQ1
000165365 593__ $$aCardiology and Cardiovascular Medicine$$c2021$$dQ1
000165365 594__ $$a10.1$$b2021
000165365 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000165365 700__ $$aD, Penela
000165365 700__ $$aJ, Fernández-Armenta
000165365 700__ $$aJ, Acosta
000165365 700__ $$aC, Terés
000165365 700__ $$aD, Soto-Iglesias
000165365 700__ $$aE, Silva
000165365 700__ $$aA, Ordóñez
000165365 700__ $$aAntonio R, San
000165365 700__ $$aA, Chauca
000165365 700__ $$aJM, Carreño
000165365 700__ $$aC, Scherer
000165365 700__ $$aA, Berruezo
000165365 773__ $$g18, 10 (2021), 1709-1716$$pHeart Rhythm$$tHEART RHYTHM$$x1547-5271
000165365 8564_ $$s683951$$uhttps://zaguan.unizar.es/record/165365/files/texto_completo.pdf$$yPostprint
000165365 8564_ $$s1148441$$uhttps://zaguan.unizar.es/record/165365/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000165365 909CO $$ooai:zaguan.unizar.es:165365$$particulos$$pdriver
000165365 951__ $$a2026-01-07-18:53:13
000165365 980__ $$aARTICLE