{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,2]],"date-time":"2026-05-02T15:19:33Z","timestamp":1777735173710,"version":"3.51.4"},"reference-count":28,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2026,1,16]],"date-time":"2026-01-16T00:00:00Z","timestamp":1768521600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,1,16]],"date-time":"2026-01-16T00:00:00Z","timestamp":1768521600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Cardiovasc electrophysiol"],"published-print":{"date-parts":[[2026,3]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Posterior wall isolation (PWI) is often added to pulmonary vein isolation (PVI) for persistent atrial fibrillation (AF) and at redo ablation. Still, procedural performance with the Affera pulsed field ablation (PFA) platform is not well described.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>We retrospectively analyzed consecutive patients who underwent PWI with the Affera Sphere\u20109 lattice\u2010tip catheter from April to August 2025. Baseline characteristics and procedural data, including PWI time, number of lesions, and acute success, were analyzed. The primary procedural endpoint was acute PWI success. Secondary measures included time to PWI, number of applications, posterior wall area isolated, and complications.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Forty patients underwent PWI (paroxysmal AF 13 [32.5%], persistent AF 27 [67.5%]). First pass PWI was achieved in 97.5%; overall acute PWI success was 100%. Median time to complete PWI was 7.0\u2009min (IQR 5.1\u201311.0). Mean lesions for PWI were 19.6\u2009\u00b1\u20096.6, and the mean posterior wall area isolated was 12.9\u2009\u00b1\u20094.5\u2009cm\u00b2. Two minor vascular complications occurred (5.0%): one acute and one delayed femoral hematoma, both managed conservatively. After a median follow\u2010up of 76 [58.5\u2013121] days, 38\/40 (95%) patients remained free from atrial arrhythmia.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>PWI with the Affera Sphere\u20109 system achieved 97.5% first\u2010pass isolation with rapid, consistent procedural times. Further study of lesion durability and clinical outcomes is warranted.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/jce.70261","type":"journal-article","created":{"date-parts":[[2026,1,16]],"date-time":"2026-01-16T11:05:08Z","timestamp":1768561508000},"page":"554-560","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Short\u2010Term Procedural Outcomes of Posterior Wall Isolation Using the Affera Pulse Field Ablation System"],"prefix":"10.1111","volume":"37","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2159-5424","authenticated-orcid":false,"given":"Udit","family":"Thakur","sequence":"first","affiliation":[{"name":"Department of Cardiology Royal Melbourne Hospital Melbourne Victoria Australia"},{"name":"Department of Medicine University of Melbourne Melbourne Victoria 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