PMID- 35524404 OWN - NLM STAT- MEDLINE DCOM- 20220712 LR - 20220804 IS - 1540-8167 (Electronic) IS - 1045-3873 (Linking) VI - 33 IP - 7 DP - 2022 Jul TI - Targeted ablation of residual pulmonary vein potentials in atrial fibrillation ablation through ultra-high-density mapping: Insights from the CHARISMA registry. PG - 1414-1424 LID - 10.1111/jce.15527 [doi] AB - INTRODUCTION: Low-voltage activity beyond pulmonary veins (PVs) may contribute to the failure of ablation of atrial fibrillation (AF) in the long term. We aimed to assess the presence of gaps (PVG) and residual potential (residual antral potential [RAP]) within the antral scar by means of an ultra-high-density mapping (UHDM) system. METHODS: We studied consecutive patients from the CHARISMA registry who were undergoing AF ablation and had complete characterization of residual PV antral activity. The Lumipoint (Boston Scientific) map-analysis tool was used sequentially on each PV component. The ablation endpoint was PV isolation (PVI) and electrical quiescence in the antral region. RESULTS: Fifty-eight cases of AF ablation were analyzed. A total of 86 PVGs in 34 (58.6%) patients and 44 RAPs in 34 patients (58.6%) were found. In 16 (27.6%) cases, we found at least one RAP in patients with complete absence of PV conduction. RAPs showed a lower mean voltage than PVG (0.3 +/- 0.2 mV vs. 0.7 +/- 0.5 mV, p < .0001), whereas the mean number of electrogram peaks was higher (8.4 +/- 1.4 vs. 3.2 +/- 1.5, p < .0001). The percentage of patients in whom RAPs were detected through Lumipoint was higher than through propagation map analysis (58.6% vs. 36.2%, p = .025). Acute procedural success was 100%, with all PVs successfully isolated and RAPs completely abolished in all study patients. During a mean follow-up of 453 +/- 133 days, 6 patients (10.3%) suffered an AF/AT recurrence. CONCLUSION: Local vulnerabilities in antral lesion sets were easily discernible by means of the UHDM system in both de novo and redo patients when no PV conduction was present. CI - (c) 2022 Wiley Periodicals LLC. FAU - Solimene, Francesco AU - Solimene F AD - Laboratorio di Elettrofisiologia, Clinica Montevergine, Mercogliano, Avellino, Italy. FAU - Stabile, Giuseppe AU - Stabile G AUID- ORCID: 0000-0003-4646-0865 AD - Laboratorio di Elettrofisiologia, Clinica Montevergine, Mercogliano, Avellino, Italy. AD - Laboratorio di Elettrofisiologia, Anthea Hospital, Bari, Italy. FAU - Segreti, Luca AU - Segreti L AUID- ORCID: 0000-0002-1421-9033 AD - Second Division of Cardiology, Cardiac-Thoracic-Vascular Department, New Santa Chiara Hospital, Azienda Ospedaliero Universitaria Pisana, Pisa, Italy. FAU - Malacrida, Maurizio AU - Malacrida M AUID- ORCID: 0000-0001-8823-0334 AD - Boston Scientific, Milan, Italy. AD - Arrhythmology Unit, Ospedale San Giovanni Calibita, Fatebefratelli, Isola Tiberina, Rome, Italy. FAU - Schillaci, Vincenzo AU - Schillaci V AD - Laboratorio di Elettrofisiologia, Clinica Montevergine, Mercogliano, Avellino, Italy. FAU - Rossi, Pietro AU - Rossi P AD - Laboratorio di Elettrofisiologia, Clinica San Michele, Maddaloni, Caserta, Italy. FAU - Bongiorni, Maria Grazia AU - Bongiorni MG AD - Second Division of Cardiology, Cardiac-Thoracic-Vascular Department, New Santa Chiara Hospital, Azienda Ospedaliero Universitaria Pisana, Pisa, Italy. FAU - Shopova, Gergana AU - Shopova G AD - Laboratorio di Elettrofisiologia, Clinica Montevergine, Mercogliano, Avellino, Italy. FAU - Cauti, Filippo Maria AU - Cauti FM AD - Laboratorio di Elettrofisiologia, Clinica San Michele, Maddaloni, Caserta, Italy. FAU - Zucchelli, Giulio AU - Zucchelli G AD - Second Division of Cardiology, Cardiac-Thoracic-Vascular Department, New Santa Chiara Hospital, Azienda Ospedaliero Universitaria Pisana, Pisa, Italy. FAU - Arestia, Alberto AU - Arestia A AD - Laboratorio di Elettrofisiologia, Clinica Montevergine, Mercogliano, Avellino, Italy. FAU - Bianchi, Stefano AU - Bianchi S AD - Laboratorio di Elettrofisiologia, Clinica San Michele, Maddaloni, Caserta, Italy. FAU - Di Cori, Andrea AU - Di Cori A AD - Second Division of Cardiology, Cardiac-Thoracic-Vascular Department, New Santa Chiara Hospital, Azienda Ospedaliero Universitaria Pisana, Pisa, Italy. FAU - Maddaluno, Francesco AU - Maddaluno F AD - Boston Scientific, Milan, Italy. AD - Arrhythmology Unit, Ospedale San Giovanni Calibita, Fatebefratelli, Isola Tiberina, Rome, Italy. FAU - De Simone, Antonio AU - De Simone A AUID- ORCID: 0000-0002-3864-0375 AD - Laboratorio di Elettrofisiologia, Clinica San Michele, Maddaloni, Caserta, Italy. FAU - Garcia-Bolao, Ignacio AU - Garcia-Bolao I AD - Department of Cardiology and Cardiovascular Surgery, Clinica Universidad de Navarra, Pamplona, Spain. AD - IdiSNA, Navarra Institute for Health Research, Navarra, Spain. LA - eng SI - ClinicalTrials.gov/NCT03793998 PT - Journal Article DEP - 20220601 PL - United States TA - J Cardiovasc Electrophysiol JT - Journal of cardiovascular electrophysiology JID - 9010756 SB - IM MH - *Atrial Fibrillation/diagnosis/surgery MH - *Catheter Ablation/adverse effects MH - Humans MH - *Pulmonary Veins/surgery MH - Recurrence MH - Registries MH - Treatment Outcome OTO - NOTNLM OT - Lumipoint OT - atrial fibrillation OT - catheter ablation OT - electroanatomic mapping OT - high density OT - low voltage EDAT- 2022/05/08 06:00 MHDA- 2022/07/14 06:00 CRDT- 2022/05/07 01:42 PHST- 2022/04/02 00:00 [revised] PHST- 2021/09/07 00:00 [received] PHST- 2022/05/04 00:00 [accepted] PHST- 2022/05/08 06:00 [pubmed] PHST- 2022/07/14 06:00 [medline] PHST- 2022/05/07 01:42 [entrez] AID - 10.1111/jce.15527 [doi] PST - ppublish SO - J Cardiovasc Electrophysiol. 2022 Jul;33(7):1414-1424. doi: 10.1111/jce.15527. Epub 2022 Jun 1.