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Visualization of the preferential conduction pathway in a case of premature ventricular contractions arising from the pulmonary artery

Journal of arrhythmia, 2021-10, Vol.37 (5), p.1359-1361 [Peer Reviewed Journal]

2021 The Authors. published by John Wiley & Sons Australia, Ltd on behalf of the Japanese Heart Rhythm Society. ;COPYRIGHT 2021 John Wiley & Sons, Inc. ;2021. This work is published under http://creativecommons.org/licenses/by-nc-nd/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;ISSN: 1880-4276 ;EISSN: 1883-2148 ;DOI: 10.1002/joa3.12595 ;PMID: 34621438

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  • Title:
    Visualization of the preferential conduction pathway in a case of premature ventricular contractions arising from the pulmonary artery
  • Author: Ueno, Akihiko ; Takenaka, Sou ; Tanaka, Yumi ; Iida, Daisuke ; Yamauchi, Masahiro ; Okuno, Tomonobu ; Sakakibara, Masayoshi
  • Subjects: Ablation ; Arrhythmia ; Cardiac arrhythmia ; Cardiac Arrhythmia Spot Light ; Catheters ; Conflicts of interest ; Electrocardiogram ; Electrocardiography ; idiopathic ventricular arrhythmia ; preferential pathway ; Pulmonary arteries ; pulmonary artery ; Sinuses
  • Is Part Of: Journal of arrhythmia, 2021-10, Vol.37 (5), p.1359-1361
  • Description: The activation mapping revealed that the earliest site of PVC (arrow in Figure 1A) was in the PA and about 10 mm above the pulmonary valve (dot lines), where a sharp potential preceded QRS onset of PVCs by 45 ms. The PVC excitation traveled 10 mm toward the anterior septum (Figure 1C) and then 10 mm downward (Figure 1D), propagating to the RVOT just below the pulmonary valve (Figure 1E). In this case, the high-density (HD Grid) mapping revealed the propagation of PVCs arising from the PA trunk propagated via the preferential conduction pathway and exiting from the RVOT septum beneath the pulmonary valve into ventricles. The high-density mapping can identify the origin and preferential pathway for VAs arising the PA and is useful for ablation for these VAs. Since HD Grid catheter can record potentials in two directions, it is possible to obtain information on the characteristics of minute potentials and the direction of conduction, which is useful for elucidating the mechanism of complex arrhythmias.
  • Publisher: Tokyo: John Wiley & Sons, Inc
  • Language: English
  • Identifier: ISSN: 1880-4276
    EISSN: 1883-2148
    DOI: 10.1002/joa3.12595
    PMID: 34621438
  • Source: Journals@Ovid Open Access Journal Collection Rolling
    PubMed Central
    Wiley Online Library Open Access
    ProQuest Central
    DOAJ Directory of Open Access Journals
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