{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,17]],"date-time":"2026-04-17T09:13:01Z","timestamp":1776417181826,"version":"3.51.2"},"reference-count":12,"publisher":"Oxford University Press (OUP)","issue":"4","license":[{"start":{"date-parts":[[2026,4,13]],"date-time":"2026-04-13T00:00:00Z","timestamp":1776038400000},"content-version":"vor","delay-in-days":12,"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>Coronary obstruction after transcatheter aortic valve implantation (TAVI) is a rare complication typically occurring acutely. Delayed coronary obstruction (DCO) due to early pannus formation is exceptionally uncommon.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Case summary<\/jats:title>\n                    <jats:p>A 74-year-old woman with no coronary artery disease underwent TAVI with a self-expandable 26-mm Evolut Pro + (Medtronic) transcatheter heart valve (THV) six months prior. She presented with recurrent non-ST-segment elevation myocardial infarctions (NSTEMI), despite no angiographic evidence of acute coronary lesions. Multimodality imaging revealed early pannus overgrowth around the THV, causing mechanical obstruction of the left main ostium. Following Heart Team discussion, she underwent successful coronary artery bypass grafting without the need for surgical THV intervention.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Discussion<\/jats:title>\n                    <jats:p>This case highlights a rare cause of DCO post-TAVI. Both orthotopic chimney stenting and THV explant with surgical valve replacement were deemed unsuitable in this context.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1093\/ehjcr\/ytag243","type":"journal-article","created":{"date-parts":[[2026,4,9]],"date-time":"2026-04-09T11:48:44Z","timestamp":1775735324000},"source":"Crossref","is-referenced-by-count":0,"title":["Early pannus after transcatheter heart valve implantation leading to delayed coronary obstruction: a case report"],"prefix":"10.1093","volume":"10","author":[{"ORCID":"https:\/\/orcid.org\/0009-0004-4018-2694","authenticated-orcid":false,"given":"Louis","family":"Perrard","sequence":"first","affiliation":[{"name":"Universit\u00e9 Paris-Cit\u00e9, Department of Cardiology, University Hospital of Lariboisiere, (Assistance Publique des H\u00f4pitaux de Paris, AP-HP) , 2 rue Ambroise Par\u00e9, Paris 75010 ,","place":["France"]},{"name":"Universit\u00e9 Paris-Cit\u00e9, Inserm MASCOT - UMRS 942 , 2 rue Ambroise Par\u00e9, Paris 75010 ,","place":["France"]},{"name":"MIRACL.ai Laboratory, Multimodality Imaging for Research and Artificial Intelligence Core Laboratory, University Hospital of Lariboisiere (AP-HP) , 2 rue Ambroise Par\u00e9, Paris 75010 ,","place":["France"]},{"name":"Department of Cardiology, University Hospital of Amiens , 1 rue du Professeur Christian Cabrol, Amiens 80000 ,","place":["France"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alexandre","family":"Lafont","sequence":"additional","affiliation":[{"name":"Universit\u00e9 Paris-Cit\u00e9, Department of Cardiology, University Hospital of Lariboisiere, (Assistance Publique des H\u00f4pitaux de Paris, AP-HP) , 2 rue Ambroise Par\u00e9, Paris 75010 ,","place":["France"]},{"name":"Universit\u00e9 Paris-Cit\u00e9, Inserm MASCOT - UMRS 942 , 2 rue Ambroise Par\u00e9, Paris 75010 ,","place":["France"]},{"name":"MIRACL.ai Laboratory, Multimodality Imaging for Research and Artificial Intelligence Core Laboratory, University Hospital of Lariboisiere (AP-HP) , 2 rue Ambroise Par\u00e9, Paris 75010 ,","place":["France"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2957-5655","authenticated-orcid":false,"given":"Mariama","family":"Akodad","sequence":"additional","affiliation":[{"name":"Institut Cardiovasculaire Paris Sud, H\u00f4pital Priv\u00e9 Jacques Cartier, Ramsay Sant\u00e9 , 6 avenue du Noyer Lambert, Massy 91300 ,","place":["France"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Patrick","family":"Nataf","sequence":"additional","affiliation":[{"name":"Service de Chirurgie Cardiaque, H\u00f4pital Bichat, APHP , 46 rue Henri Huchard, Paris 75010 ,","place":["France"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0008-9497-1882","authenticated-orcid":false,"given":"Emmanuel","family":"Gall","sequence":"additional","affiliation":[{"name":"Universit\u00e9 Paris-Cit\u00e9, Department of Cardiology, University Hospital of Lariboisiere, (Assistance Publique des H\u00f4pitaux de Paris, AP-HP) , 2 rue Ambroise Par\u00e9, Paris 75010 ,","place":["France"]},{"name":"Universit\u00e9 Paris-Cit\u00e9, Inserm MASCOT - 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