{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,5]],"date-time":"2026-05-05T01:13:43Z","timestamp":1777943623276,"version":"3.51.4"},"reference-count":26,"publisher":"SAGE Publications","issue":"2","license":[{"start":{"date-parts":[[2017,10,12]],"date-time":"2017-10-12T00:00:00Z","timestamp":1507766400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Vascular"],"published-print":{"date-parts":[[2018,4]]},"abstract":"<jats:sec>\n                    <jats:title>Objectives<\/jats:title>\n                    <jats:p>To investigate the feasibility and the mid-term outcomes of the chimney-graft technique for the revascularization of supra-aortic branches in patients with thoracic aortic pathologies involving the aortic arch.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>A retrospective analysis of a prospectively maintained database between January 2010 and July 2016 was performed. Primary endpoints were 30-day and overall mortality. Secondary endpoints were technical success, target vessel patency, stroke\/transitory ischemic attack and type I\/III endoleak rate.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>A total of 30 patients (80% male, median age 70.0 years) were treated using the chimney-graft technique for the supra-aortic branches. The indication was a degenerative aneurysm in nine patients (32%) and a type B Stanford aortic dissection and a penetrating aortic ulcer in the descending aorta in seven patients (23%), respectively. In six patients (20.0%), the indication was an type Ia endoleak after previous endovascular thoracic repair, whereas a pseudoaneurysm after previous open repair of the descending aorta was the indication in one patient (3%). Twenty-three patients (77%) were treated electively, five (17%) emergently and two (7%) urgently because of free rupture. Technical success was achieved in 90% of patients. The 30-day\/in-hospital mortality was 17% (5\/30). A retrograde dissection was presented in five patients. Four patients experienced a cerebrovascular event. Eight patients had type Ia endoleak and 10 had type II. During the median follow-up of 16 months (range: 0\u201356), four further patients died: one in respiratory insufficiency, one due to a ruptured abdominal aortic aneurysm, one in meningitis and the last one for unknown reason. The chimney-graft patency was 100%. According to the Kaplan\u2013Meier curve, the estimated survival at one year was 66\u2009\u00b1\u20099%.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>The chimney-graft technique, despite a technically demanding strategy, is a useful tool as bailout procedure in our armamentarium for high-risk patients, unsuitable for open or hybrid repair.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/1708538117723200","type":"journal-article","created":{"date-parts":[[2017,10,12]],"date-time":"2017-10-12T09:52:13Z","timestamp":1507801933000},"page":"175-182","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":10,"title":["Single-center mid-term experience with chimney-graft technique for the preservation of flow to the supra-aortic branches"],"prefix":"10.1177","volume":"26","author":[{"given":"Robert","family":"Shahverdyan","sequence":"first","affiliation":[{"name":"Department of Vascular Surgery, University Hospital of Cologne, Cologne, Germany"},{"name":"The first two authors have equally contributed and share the first authorship."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Spyridon","family":"Mylonas","sequence":"additional","affiliation":[{"name":"Department of Vascular Surgery, University Hospital of Cologne, Cologne, Germany"},{"name":"The first two authors have equally contributed and share the first authorship."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Michael","family":"Gawenda","sequence":"additional","affiliation":[{"name":"Department of Vascular Surgery, University Hospital of Cologne, Cologne, Germany"},{"name":"The first two authors have equally contributed and share the first authorship."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3082-6009","authenticated-orcid":false,"given":"Jan","family":"Brunkwall","sequence":"additional","affiliation":[{"name":"Department of Vascular Surgery, University Hospital of Cologne, Cologne, Germany"},{"name":"The first two authors have equally contributed and share the first authorship."}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2017,10,12]]},"reference":[{"key":"bibr1-1708538117723200","doi-asserted-by":"publisher","DOI":"10.1016\/j.athoracsur.2015.02.091"},{"key":"bibr2-1708538117723200","doi-asserted-by":"publisher","DOI":"10.1093\/ejcts\/ezw055"},{"key":"bibr3-1708538117723200","first-page":"531","volume":"56","author":"Coselli JS","year":"2015","journal-title":"J Cardiovasc Surg 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