{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,22]],"date-time":"2026-07-22T12:02:04Z","timestamp":1784721724765,"version":"3.55.0"},"reference-count":6,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2025,9,11]],"date-time":"2025-09-11T00:00:00Z","timestamp":1757548800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2025,9,11]],"date-time":"2025-09-11T00:00:00Z","timestamp":1757548800000},"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":["Cathet Cardio Intervent"],"published-print":{"date-parts":[[2025,11]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>Coronary obstruction is a rare but potentially fatal complication of transcatheter aortic valve replacement, particularly in patients with high\u2010risk anatomy. Prophylactic techniques such as chimney stenting and intentional leaflet laceration have been developed to prevent acute coronary obstruction; however, delayed coronary obstruction (DCO) remains a serious concern. We present a 76\u2010year\u2010old woman with severe aortic stenosis, low coronary height, and an elongated native left coronary cusp. Preprocedural computed tomography and virtual simulation revealed a near\u2010zero valve\u2010to\u2010sinotubular junction distance, predicting unavoidable obstruction. Despite chimney stenting during self\u2010expanding valve deployment, progressive valve frame expansion caused late chimney stent occlusion. Emergent revascularization was achieved by mechanically perforating the entrapped native leaflet, followed by fenestration stenting. This case highlights the limitations of conventional coronary protection in preventing DCO. It demonstrates that percutaneous leaflet perforation with fenestration stenting may serve as a potentially feasible bailout strategy in this high\u2010risk setting.<\/jats:p>","DOI":"10.1002\/ccd.70108","type":"journal-article","created":{"date-parts":[[2025,9,12]],"date-time":"2025-09-12T04:46:19Z","timestamp":1757652379000},"page":"3133-3135","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Emergency Leaflet Perforation for Coronary Revascularization Following Delayed Chimney Stent Complete Occlusion: A Case Report"],"prefix":"10.1002","volume":"106","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0424-8914","authenticated-orcid":false,"given":"Zhongkai","family":"Zhu","sequence":"first","affiliation":[{"name":"Department of Cardiology, West China Hospital Sichuan University Chengdu Sichuan China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xuerou","family":"Xiong","sequence":"additional","affiliation":[{"name":"Department of Cardiology, West China Hospital Sichuan University Chengdu Sichuan China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiafu","family":"Wei","sequence":"additional","affiliation":[{"name":"Department of Cardiology, West China Hospital Sichuan University Chengdu Sichuan China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,9,11]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jacc.2018.01.066"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcin.2020.01.227"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcin.2024.01.007"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcin.2022.11.018"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1093\/eurheartj\/ehx455"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcin.2019.03.035"}],"container-title":["Catheterization and Cardiovascular Interventions"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/ccd.70108","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1002\/ccd.70108","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/ccd.70108","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,2,16]],"date-time":"2026-02-16T05:54:30Z","timestamp":1771221270000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/ccd.70108"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,9,11]]},"references-count":6,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2025,11]]}},"alternative-id":["10.1002\/ccd.70108"],"URL":"https:\/\/doi.org\/10.1002\/ccd.70108","archive":["Portico"],"relation":{},"ISSN":["1522-1946","1522-726X"],"issn-type":[{"value":"1522-1946","type":"print"},{"value":"1522-726X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,9,11]]},"assertion":[{"value":"2025-06-23","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2025-08-19","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2025-09-11","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}