{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T06:54:53Z","timestamp":1790751293520,"version":"4.1.0"},"reference-count":7,"publisher":"Oxford University Press (OUP)","issue":"9","license":[{"start":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T00:00:00Z","timestamp":1789948800000},"content-version":"vor","delay-in-days":25,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,8,27]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Pulsed field ablation (PFA) has emerged as a novel non-thermal ablation modality with preferential myocardial selectivity. However, its effects on adjacent structures, including the sinus node and its arterial supply, remain incompletely understood.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Case summary<\/jats:title>\n                    <jats:p>A 72-year-old woman underwent repeat ablation for recurrent paroxysmal atrial fibrillation. Following pulmonary vein isolation, superior vena cava (SVC) isolation was performed using a PFA system. Sinus rhythm was initially preserved. However, sinus arrest developed several minutes after ablation. High right atrial backup pacing was initiated. Coronary angiography revealed severe spasm of the sinus node artery. Sinus node function gradually recovered after supportive management. Post-procedural voltage mapping confirmed successful SVC isolation.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Discussion<\/jats:title>\n                    <jats:p>This case highlights delayed sinus arrest following SVC isolation using PFA, with angiographic evidence suggesting sinus node artery spasm. While multiple mechanisms may contribute to sinus node dysfunction after PFA, coronary vasospasm should be considered, particularly in cases with delayed onset.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1093\/ehjcr\/ytag703","type":"journal-article","created":{"date-parts":[[2026,9,18]],"date-time":"2026-09-18T18:24:59Z","timestamp":1789755899000},"source":"Crossref","is-referenced-by-count":0,"title":["Transient sinus arrest caused by coronary spasm of the sinus node artery after pulsed field ablation for superior vena cava isolation: a case report"],"prefix":"10.1093","volume":"10","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6332-2355","authenticated-orcid":false,"given":"Rintaro","family":"Hojo","sequence":"first","affiliation":[{"name":"Department of Cardiology, Tokyo Metropolitan Hiroo Hospital , 2-34-10 Ebisu, Shibuya-ku, Tokyo 150-0013 ,","place":["Japan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5907-9695","authenticated-orcid":false,"given":"Koichiro","family":"Yamaoka","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Tokyo Metropolitan Hiroo Hospital , 2-34-10 Ebisu, Shibuya-ku, Tokyo 150-0013 ,","place":["Japan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9564-3655","authenticated-orcid":false,"given":"Tomoyuki","family":"Arai","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Tokyo Metropolitan Hiroo Hospital , 2-34-10 Ebisu, Shibuya-ku, Tokyo 150-0013 ,","place":["Japan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9440-289X","authenticated-orcid":false,"given":"Masao","family":"Takahashi","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Tokyo Metropolitan Hiroo Hospital , 2-34-10 Ebisu, Shibuya-ku, Tokyo 150-0013 ,","place":["Japan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0291-9702","authenticated-orcid":false,"given":"Seiji","family":"Fukamizu","sequence":"additional","affiliation":[{"name":"Department of Cardiology, Tokyo Metropolitan Hiroo Hospital , 2-34-10 Ebisu, Shibuya-ku, Tokyo 150-0013 ,","place":["Japan"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2026,9,21]]},"reference":[{"key":"2026093001564769800_ytag703-B1","doi-asserted-by":"crossref","first-page":"euae160","DOI":"10.1093\/europace\/euae160","article-title":"Superior vena cava isolation using a pentaspline pulsed-field ablation catheter: Feasibility and safety in patients undergoing atrial fibrillation catheter ablation","volume":"26","author":"Ollitrault","year":"2024","journal-title":"Europace"},{"key":"2026093001564769800_ytag703-B2","doi-asserted-by":"crossref","first-page":"103865","DOI":"10.1016\/j.jaccas.2025.103865","article-title":"Successful pulsed-field ablation of superior vena cava fibrillation using a circular multielectrode array catheter","volume":"30","author":"Nozoe","year":"2025","journal-title":"JACC Case Rep"},{"key":"2026093001564769800_ytag703-B3","doi-asserted-by":"crossref","first-page":"72","DOI":"10.1001\/jamacardio.2023.4405","article-title":"Coronary artery spasm during pulsed field vs radiofrequency catheter ablation of the mitral isthmus","volume":"9","author":"Zhang","year":"2024","journal-title":"JAMA Cardiol"},{"key":"2026093001564769800_ytag703-B4","doi-asserted-by":"crossref","first-page":"1808","DOI":"10.1161\/CIRCULATIONAHA.122.061497","article-title":"Coronary arterial spasm during pulsed field ablation to treat atrial fibrillation","volume":"146","author":"Reddy","year":"2022","journal-title":"Circulation"},{"key":"2026093001564769800_ytag703-B5","doi-asserted-by":"crossref","first-page":"1759","DOI":"10.1007\/s10840-023-01624-7","article-title":"Pulsed field ablation of incessant superior vena cava-triggered atrial fibrillation: watch out for the sinoatrial node","volume":"66","author":"Chen","year":"2023","journal-title":"J Interv Card Electrophysiol"},{"key":"2026093001564769800_ytag703-B6","doi-asserted-by":"crossref","first-page":"e0148331","DOI":"10.1371\/journal.pone.0148331","article-title":"Anatomical variations in the sinoatrial nodal artery: a meta-analysis and clinical considerations","volume":"11","author":"Vikse","year":"2016","journal-title":"PLoS One"},{"key":"2026093001564769800_ytag703-B7","doi-asserted-by":"crossref","first-page":"1638","DOI":"10.1016\/j.hrthm.2013.09.001","article-title":"Manifestations of coronary arterial injury during catheter ablation of atrial fibrillation and related arrhythmias","volume":"10","author":"Chugh","year":"2013","journal-title":"Heart Rhythm"}],"container-title":["European Heart Journal - 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