Electrophysiological findings during atrial fibrillation reablation: Extending from pulmonary vein reconnection to sequential bipolar voltage map information

Background Left atrial substrate modification targeting low voltage zones (LVZ) is an ablation strategy that—in addition to pulmonary vein (PV) isolation—tries to eliminate arrhythmogenic mechanisms harbored in such tissue. Electrophysiological findings at reablation include (a) PV reconnection, (b)...

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Veröffentlicht in:Journal of cardiovascular electrophysiology 2020-04, Vol.31 (4), p.885-894
Hauptverfasser: Huo, Yan, Kronborg, Mads Brix, Richter, Utz, Guo, Jianping, Ulbrich, Stefan, Zedda, Angela M., Kirstein, Bettina, Mayer, Julia, Pu, Liying, Piorkowski, Judith, Wagner, Michael, Gaspar, Thomas, Piorkowski, Christopher
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container_end_page 894
container_issue 4
container_start_page 885
container_title Journal of cardiovascular electrophysiology
container_volume 31
creator Huo, Yan
Kronborg, Mads Brix
Richter, Utz
Guo, Jianping
Ulbrich, Stefan
Zedda, Angela M.
Kirstein, Bettina
Mayer, Julia
Pu, Liying
Piorkowski, Judith
Wagner, Michael
Gaspar, Thomas
Piorkowski, Christopher
description Background Left atrial substrate modification targeting low voltage zones (LVZ) is an ablation strategy that—in addition to pulmonary vein (PV) isolation—tries to eliminate arrhythmogenic mechanisms harbored in such tissue. Electrophysiological findings at reablation include (a) PV reconnection, (b) reconnection over previous substrate ablation, and (c) de‐novo LVZ. Objective To study, prevalence and contribution of these arrhythmogenic electrophysiological entities in patients with atrial fibrillation (AF) recurrences. Methods Consecutive patients with highly symptomatic AF undergoing index and reablation were included (n = 113). In all patients' PV reconnection, reconnection over previous substrate ablation and spontaneous de‐novo LVZ were quantitatively assessed and integrated into an individual reablation strategy. Follow‐up was based on continuous device monitoring. Results At re‐do procedure, 45 out of 113 (39.8%) patients showed PV reconnection as the only electrophysiological abnormality. Reconduction over previous lines was the only electrophysiological abnormality in 8 out of 113 (7.1%) patients. Spontaneous de‐novo LVZ was the only electrophysiological abnormality in 12 out of 113 (10.6%) patients. Combined findings of PV reconnection, line reconduction, and/or spontaneous de‐novo LVZ were seen in 40 out of 113 (35.4%) patients. No detectable electrophysiological abnormality was observed in 8 out of 113 (7.1%) patients. In univariate analysis, none of the tested electrophysiological characteristics independently predicted the outcome after re‐do. Conclusions In patients undergoing reablation, we could show that reconduction over previous substrate ablation as well as the development of new low voltage areas are frequent findings besides classical PV reconnection—without a clear leading cause for recurrences. These findings impact reablation strategies as well as the strategic focus during index procedures.
doi_str_mv 10.1111/jce.14387
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Electrophysiological findings at reablation include (a) PV reconnection, (b) reconnection over previous substrate ablation, and (c) de‐novo LVZ. Objective To study, prevalence and contribution of these arrhythmogenic electrophysiological entities in patients with atrial fibrillation (AF) recurrences. Methods Consecutive patients with highly symptomatic AF undergoing index and reablation were included (n = 113). In all patients' PV reconnection, reconnection over previous substrate ablation and spontaneous de‐novo LVZ were quantitatively assessed and integrated into an individual reablation strategy. Follow‐up was based on continuous device monitoring. Results At re‐do procedure, 45 out of 113 (39.8%) patients showed PV reconnection as the only electrophysiological abnormality. Reconduction over previous lines was the only electrophysiological abnormality in 8 out of 113 (7.1%) patients. Spontaneous de‐novo LVZ was the only electrophysiological abnormality in 12 out of 113 (10.6%) patients. Combined findings of PV reconnection, line reconduction, and/or spontaneous de‐novo LVZ were seen in 40 out of 113 (35.4%) patients. No detectable electrophysiological abnormality was observed in 8 out of 113 (7.1%) patients. In univariate analysis, none of the tested electrophysiological characteristics independently predicted the outcome after re‐do. Conclusions In patients undergoing reablation, we could show that reconduction over previous substrate ablation as well as the development of new low voltage areas are frequent findings besides classical PV reconnection—without a clear leading cause for recurrences. These findings impact reablation strategies as well as the strategic focus during index procedures.</description><identifier>ISSN: 1045-3873</identifier><identifier>EISSN: 1540-8167</identifier><identifier>DOI: 10.1111/jce.14387</identifier><identifier>PMID: 32037614</identifier><language>eng</language><publisher>United States: Wiley Subscription Services, Inc</publisher><subject>Action Potentials ; Aged ; atrial fibrillation ; Atrial Fibrillation - diagnosis ; Atrial Fibrillation - physiopathology ; Atrial Fibrillation - surgery ; bipolar voltage ; Cardiac arrhythmia ; Catheter Ablation - adverse effects ; disease progression ; Electrophysiologic Techniques, Cardiac ; Female ; Fibrillation ; Heart Rate ; Humans ; low voltage zone ; Male ; Middle Aged ; Predictive Value of Tests ; Pulmonary Veins - physiopathology ; Pulmonary Veins - surgery ; Recurrence ; Reoperation ; Risk Factors ; substrate modification ; Time Factors ; Treatment Outcome ; Voltage</subject><ispartof>Journal of cardiovascular electrophysiology, 2020-04, Vol.31 (4), p.885-894</ispartof><rights>2020 The Authors. published by Wiley Periodicals, Inc.</rights><rights>2020 The Authors. Journal of Cardiovascular Electrophysiology published by Wiley Periodicals, Inc.</rights><rights>2020 Wiley Periodicals, Inc.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3887-926f9e095c7ae97baff87e1623d7758a5298607385078e2415fc5de04ccbcdae3</citedby><cites>FETCH-LOGICAL-c3887-926f9e095c7ae97baff87e1623d7758a5298607385078e2415fc5de04ccbcdae3</cites><orcidid>0000-0002-9379-6364</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fjce.14387$$EPDF$$P50$$Gwiley$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fjce.14387$$EHTML$$P50$$Gwiley$$Hfree_for_read</linktohtml><link.rule.ids>314,776,780,1411,27901,27902,45550,45551</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/32037614$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Huo, Yan</creatorcontrib><creatorcontrib>Kronborg, Mads Brix</creatorcontrib><creatorcontrib>Richter, Utz</creatorcontrib><creatorcontrib>Guo, Jianping</creatorcontrib><creatorcontrib>Ulbrich, Stefan</creatorcontrib><creatorcontrib>Zedda, Angela M.</creatorcontrib><creatorcontrib>Kirstein, Bettina</creatorcontrib><creatorcontrib>Mayer, Julia</creatorcontrib><creatorcontrib>Pu, Liying</creatorcontrib><creatorcontrib>Piorkowski, Judith</creatorcontrib><creatorcontrib>Wagner, Michael</creatorcontrib><creatorcontrib>Gaspar, Thomas</creatorcontrib><creatorcontrib>Piorkowski, Christopher</creatorcontrib><title>Electrophysiological findings during atrial fibrillation reablation: Extending from pulmonary vein reconnection to sequential bipolar voltage map information</title><title>Journal of cardiovascular electrophysiology</title><addtitle>J Cardiovasc Electrophysiol</addtitle><description>Background Left atrial substrate modification targeting low voltage zones (LVZ) is an ablation strategy that—in addition to pulmonary vein (PV) isolation—tries to eliminate arrhythmogenic mechanisms harbored in such tissue. Electrophysiological findings at reablation include (a) PV reconnection, (b) reconnection over previous substrate ablation, and (c) de‐novo LVZ. Objective To study, prevalence and contribution of these arrhythmogenic electrophysiological entities in patients with atrial fibrillation (AF) recurrences. Methods Consecutive patients with highly symptomatic AF undergoing index and reablation were included (n = 113). In all patients' PV reconnection, reconnection over previous substrate ablation and spontaneous de‐novo LVZ were quantitatively assessed and integrated into an individual reablation strategy. Follow‐up was based on continuous device monitoring. Results At re‐do procedure, 45 out of 113 (39.8%) patients showed PV reconnection as the only electrophysiological abnormality. Reconduction over previous lines was the only electrophysiological abnormality in 8 out of 113 (7.1%) patients. Spontaneous de‐novo LVZ was the only electrophysiological abnormality in 12 out of 113 (10.6%) patients. Combined findings of PV reconnection, line reconduction, and/or spontaneous de‐novo LVZ were seen in 40 out of 113 (35.4%) patients. No detectable electrophysiological abnormality was observed in 8 out of 113 (7.1%) patients. In univariate analysis, none of the tested electrophysiological characteristics independently predicted the outcome after re‐do. Conclusions In patients undergoing reablation, we could show that reconduction over previous substrate ablation as well as the development of new low voltage areas are frequent findings besides classical PV reconnection—without a clear leading cause for recurrences. 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Calcified Tissue Abstracts</collection><collection>ProQuest Health &amp; Medical Complete (Alumni)</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of cardiovascular electrophysiology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Huo, Yan</au><au>Kronborg, Mads Brix</au><au>Richter, Utz</au><au>Guo, Jianping</au><au>Ulbrich, Stefan</au><au>Zedda, Angela M.</au><au>Kirstein, Bettina</au><au>Mayer, Julia</au><au>Pu, Liying</au><au>Piorkowski, Judith</au><au>Wagner, Michael</au><au>Gaspar, Thomas</au><au>Piorkowski, Christopher</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Electrophysiological findings during atrial fibrillation reablation: Extending from pulmonary vein reconnection to sequential bipolar voltage map information</atitle><jtitle>Journal of cardiovascular electrophysiology</jtitle><addtitle>J Cardiovasc Electrophysiol</addtitle><date>2020-04</date><risdate>2020</risdate><volume>31</volume><issue>4</issue><spage>885</spage><epage>894</epage><pages>885-894</pages><issn>1045-3873</issn><eissn>1540-8167</eissn><abstract>Background Left atrial substrate modification targeting low voltage zones (LVZ) is an ablation strategy that—in addition to pulmonary vein (PV) isolation—tries to eliminate arrhythmogenic mechanisms harbored in such tissue. Electrophysiological findings at reablation include (a) PV reconnection, (b) reconnection over previous substrate ablation, and (c) de‐novo LVZ. Objective To study, prevalence and contribution of these arrhythmogenic electrophysiological entities in patients with atrial fibrillation (AF) recurrences. Methods Consecutive patients with highly symptomatic AF undergoing index and reablation were included (n = 113). In all patients' PV reconnection, reconnection over previous substrate ablation and spontaneous de‐novo LVZ were quantitatively assessed and integrated into an individual reablation strategy. Follow‐up was based on continuous device monitoring. Results At re‐do procedure, 45 out of 113 (39.8%) patients showed PV reconnection as the only electrophysiological abnormality. Reconduction over previous lines was the only electrophysiological abnormality in 8 out of 113 (7.1%) patients. Spontaneous de‐novo LVZ was the only electrophysiological abnormality in 12 out of 113 (10.6%) patients. Combined findings of PV reconnection, line reconduction, and/or spontaneous de‐novo LVZ were seen in 40 out of 113 (35.4%) patients. No detectable electrophysiological abnormality was observed in 8 out of 113 (7.1%) patients. In univariate analysis, none of the tested electrophysiological characteristics independently predicted the outcome after re‐do. Conclusions In patients undergoing reablation, we could show that reconduction over previous substrate ablation as well as the development of new low voltage areas are frequent findings besides classical PV reconnection—without a clear leading cause for recurrences. These findings impact reablation strategies as well as the strategic focus during index procedures.</abstract><cop>United States</cop><pub>Wiley Subscription Services, Inc</pub><pmid>32037614</pmid><doi>10.1111/jce.14387</doi><tpages>10</tpages><orcidid>https://orcid.org/0000-0002-9379-6364</orcidid><oa>free_for_read</oa></addata></record>
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subjects Action Potentials
Aged
atrial fibrillation
Atrial Fibrillation - diagnosis
Atrial Fibrillation - physiopathology
Atrial Fibrillation - surgery
bipolar voltage
Cardiac arrhythmia
Catheter Ablation - adverse effects
disease progression
Electrophysiologic Techniques, Cardiac
Female
Fibrillation
Heart Rate
Humans
low voltage zone
Male
Middle Aged
Predictive Value of Tests
Pulmonary Veins - physiopathology
Pulmonary Veins - surgery
Recurrence
Reoperation
Risk Factors
substrate modification
Time Factors
Treatment Outcome
Voltage
title Electrophysiological findings during atrial fibrillation reablation: Extending from pulmonary vein reconnection to sequential bipolar voltage map information
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