Comparing phase and electrographic flow mapping for persistent atrial fibrillation.
Background: An increasing number of methods are being used to map atrial fibrillation (AF), yet the sensitivity of identifying potential localized AF sources of these novel methods are unclear. Here, we report a comparison of two approaches to map AF based upon (1) electrographic flow mapping and (2...
| Published in: | Pacing & Clinical Electrophysiology Vol. 42; no. 5; pp. 499 - 508 |
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| Main Authors: | , , , , , , , , , , , , |
| Format: | diagnostic images research tables/charts tracings Journal Article |
| Published: |
Wiley-Blackwell
May2019
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| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=135976786&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 135976786 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 01478389 4F8 jtl: Pacing & Clinical Electrophysiology issn: 01478389 maglogo: Y pubinfo: dt: May2019 vid: 42 iid: 5 pid: 480 pub: Wiley-Blackwell place: Malden, Massachusetts artinfo: ui: 135976786 135976786 135976786 10.1111/pace.13649 135976786 ppf: 499 ppct: 9 formats: fmt: – @attributes: type: T – @attributes: type: C – @attributes: type: P tig: atl: Comparing phase and electrographic flow mapping for persistent atrial fibrillation. aug: au: Swerdlow, M. Tamboli, M. Alhusseini, M.I. Moosvi, N. Rogers, A.J. Leef, G. Wang, P.J. Rillig, A. Brachmann, J. Sauer, W.H. Ruppersberg, P. Narayan, S.M. Baykaner, T. affil: Cardiovascular Medicine, Stanford University, Stanford California sug: subj: Atrial Fibrillation Surgery Catheter Ablation Atrial Fibrillation Diagnosis Electrocardiography Electrophysiology Human Heart Atrium, Right Heart Atrium, Left Aged Middle Age Male Female Prevalence Registries, Disease Aged: 65+ years Middle Aged: 45-64 years Male Female ab: Background: An increasing number of methods are being used to map atrial fibrillation (AF), yet the sensitivity of identifying potential localized AF sources of these novel methods are unclear. Here, we report a comparison of two approaches to map AF based upon (1) electrographic flow mapping and (2) phase mapping in a multicenter registry of patients in whom ablation terminated persistent AF. Methods: Fifty‐three consecutive patients with persistent AF in whom ablation terminated AF in an international multicenter registry were enrolled. Electrographic flow mapping (EGF) and phase mapping were applied to the multipolar simultaneous electrograms recorded from a 64‐pole basket catheter in the chamber (left vs right atrium) where AF termination occurred. We analyzed if the mapping methods were able to detect localized sources at the AF termination site. We also analyzed global results of mapping AF for each method, patterns of activation of localized sources. Results: Patients were 64.3 ± 9.4 years old and 69.8% were male. EGF and phase mapping identified localized sources at AF termination sites in 81% and 83% of the patients, respectively. Methods were complementary and in only n = 2 (3.7%) neither method identified a source. Globally, EGF identified more localized sources than phase mapping (5.3 ± 2.8 vs 1.8 ± 0.5, P < 0.001), with a higher prevalence of focal (compared to rotational) activation pattern (49% vs 2%, P < 0.01). Conclusions: EGF is a novel vectorial‐based AF mapping method, which can detect sites of AF termination, agreeing with, and complementary to, an alternative AF mapping method using phase analysis. pubtype: Academic Journal doctype: diagnostic images research tables/charts tracings Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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