{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,12]],"date-time":"2026-01-12T08:38:12Z","timestamp":1768207092543,"version":"3.49.0"},"reference-count":9,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,1,12]],"date-time":"2026-01-12T00:00:00Z","timestamp":1768176000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Cardiovasc. Med."],"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Ascending aortic pseudoaneurysm is a rare but potentially fatal complication after aortic surgery, particularly challenging in elderly high-risk patients.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Case presentation<\/jats:title>\n                    <jats:p>We report an 80-year-old man with a history of surgical repair for acute type A aortic dissection who presented with a two-month history of chest pain. Transthoracic echocardiography and computed tomography angiography revealed a large posterior ascending aortic pseudoaneurysm measuring 6.5\u2009\u00d7\u20095.4\u2005cm with a narrow neck. Because of his advanced age, previous sternotomy, and overall frailty, the patient was considered unsuitable for redo surgery after heart team discussion.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Management and outcome<\/jats:title>\n                    <jats:p>After obtaining written informed consent, the patient underwent successful percutaneous closure using a 10-mm Cocoon Septal Occluder device via transfemoral access. The procedure was uncomplicated, and immediate angiography confirmed minimal residual flow. Six-month follow-up computed tomography angiography demonstrated complete thrombosis of the aneurysm sac, and the patient remained asymptomatic with no residual shunt at two-year follow-up.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>This case illustrates that transcatheter closure of a posterior ascending aortic pseudoaneurysm using a septal occluder device can be a safe and durable alternative to high-risk reoperation, provided that careful pre-procedural imaging and catheter selection are performed.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.3389\/fcvm.2025.1682988","type":"journal-article","created":{"date-parts":[[2026,1,12]],"date-time":"2026-01-12T05:41:50Z","timestamp":1768196510000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Transcatheter closure of a posterior ascending aortic pseudoaneurysm after aortic dissection repair: a case report"],"prefix":"10.3389","volume":"12","author":[{"given":"Phuc Nang","family":"Vu","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Thuy Thuc Minh","family":"Pham","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Thong Minh","family":"Luong","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Binh Thanh","family":"Huynh","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Vinh Nguyen","family":"Pham","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hieu Lan","family":"Nguyen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1965","published-online":{"date-parts":[[2026,1,12]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"313","DOI":"10.1016\/S1010-7940(00)00512-1","article-title":"Late complications after prosthetic replacement of the ascending aorta: what did we learn from routine magnetic resonance imaging follow-up?","volume":"18","author":"Mesana","year":"2000","journal-title":"Eur J Cardiothorac Surg"},{"key":"B2","first-page":"576","article-title":"Systematic review of interventions to repair ascending aortic pseudoaneurysms","volume":"14","author":"Quevedo","year":"2014","journal-title":"Ochsner J"},{"key":"B3","doi-asserted-by":"publisher","first-page":"146","DOI":"10.1002\/ccd.20794","article-title":"Novel use of the amplatzer septal occluder device in the percutaneous closure of ascending aortic pseudoaneurysms: a case 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