{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,29]],"date-time":"2026-10-29T21:00:12Z","timestamp":1793307612506,"version":"4.5.0"},"reference-count":12,"publisher":"Oxford University Press (OUP)","issue":"4","license":[{"start":{"date-parts":[[2026,3,23]],"date-time":"2026-03-23T00:00:00Z","timestamp":1774224000000},"content-version":"vor","delay-in-days":3,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,4,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Incessant ventricular tachycardia (VT) in advanced ischaemic cardiomyopathy is a life-threatening condition, particularly when maintained by deep intramyocardial scar channels that can be difficult to eliminate with conventional radiofrequency (RF) ablation. Pulsed-field ablation (PFA) is a non-thermal, myocardium-selective modality with the potential to target arrhythmogenic tissue while minimizing collateral injury.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Case summary<\/jats:title>\n                    <jats:p>We report a case of incessant VT in a 60-year-old man with severe ischaemic cardiomyopathy in whom acute VT termination and final non-inducibility were achieved using a sequential dual-energy strategy combining RF and PFA delivered with a 3.5\u2005mm open-irrigated catheter capable of both modalities [Dual Energy THERMOCOOL SMARTTOUCH\u2122 (DE-STSF), Johnson &amp; Johnson MedTech]. The procedure was performed under extracorporeal cardiopulmonary resuscitation (eCPR) via veno-arterial extracorporeal membrane oxygenation (VA-ECMO) during electrical storm. Despite VT termination and arrhythmia control, the patient died on Day 5 from refractory shock with progressive multiorgan failure.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Discussion<\/jats:title>\n                    <jats:p>This case supports the feasibility of colocalized sequential RF\u2013PFA (\u2018energy stacking\u2019) as an adjunct strategy for suspected intramural post-infarction VT substrate in selected high-risk patients. Supported by VA-ECMO, this dual-energy strategy achieved acute VT non-inducibility and arrhythmia control, despite an unfavourable overall clinical outcome. Further systematic evaluation is warranted to define the incremental role of dual-energy lesion delivery in ventricular substrates.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1093\/ehjcr\/ytag225","type":"journal-article","created":{"date-parts":[[2026,3,18]],"date-time":"2026-03-18T12:52:46Z","timestamp":1773838366000},"source":"Crossref","is-referenced-by-count":1,"title":["Colocalized radiofrequency and pulsed field ablation of incessant ventricular tachycardia with suspected intramural circuit in ischaemic cardiomyopathy using a 3.5\u2005mm single-tip catheter under eCPR: a case report"],"prefix":"10.1093","volume":"10","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1608-4152","authenticated-orcid":false,"given":"Martin","family":"Borlich","sequence":"first","affiliation":[{"name":"Heart and Vascular Center, Segeberger Kliniken GmbH , Am Kurpark 1, 23795 Bad Segeberg 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23795 Bad Segeberg ,","place":["Germany"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2026,3,20]]},"reference":[{"key":"2026041704174488300_ytag225-B1","doi-asserted-by":"crossref","first-page":"439","DOI":"10.1016\/j.hrthm.2019.10.017","article-title":"Direct and indirect mapping of intramural space in ventricular tachycardia","volume":"17","author":"Bhaskaran","year":"2020","journal-title":"Heart Rhythm"},{"key":"2026041704174488300_ytag225-B2","doi-asserted-by":"crossref","first-page":"e013143","DOI":"10.1161\/CIRCEP.124.013143","article-title":"Effect of sequential, colocalized radiofrequency and pulsed field ablation on cardiac lesion size and histology","volume":"18","author":"Verma","year":"2025","journal-title":"Circ Arrhythm Electrophysiol"},{"key":"2026041704174488300_ytag225-B3","doi-asserted-by":"crossref","first-page":"3997","DOI":"10.1093\/eurheartj\/ehac262","article-title":"2022 ESC guidelines for the 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