{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,9]],"date-time":"2026-07-09T10:28:18Z","timestamp":1783592898595,"version":"3.55.0"},"reference-count":27,"publisher":"Elsevier BV","license":[{"start":{"date-parts":[[2026,6,1]],"date-time":"2026-06-01T00:00:00Z","timestamp":1780272000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2026,6,1]],"date-time":"2026-06-01T00:00:00Z","timestamp":1780272000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"},{"start":{"date-parts":[[2026,3,11]],"date-time":"2026-03-11T00:00:00Z","timestamp":1773187200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["clinicalkey.com","clinicalkey.com.au","clinicalkey.jp","jtcvsopen.org","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["JTCVS Open"],"published-print":{"date-parts":[[2026,6]]},"DOI":"10.1016\/j.xjon.2026.101729","type":"journal-article","created":{"date-parts":[[2026,3,16]],"date-time":"2026-03-16T17:19:03Z","timestamp":1773681543000},"page":"101729","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":0,"special_numbering":"C","title":["Off-hour admission and mortality in acute type A aortic dissection: A nationwide cohort of 25,608 surgically treated cases"],"prefix":"10.1016","volume":"31","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3949-0898","authenticated-orcid":false,"given":"Felix","family":"Kirchhoff","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andreas","family":"Kuehnl","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christoph","family":"Knappich","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Konstantin","family":"Uttinger","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Matthias","family":"Trenner","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daniela","family":"Branzan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"78","reference":[{"issue":"1","key":"10.1016\/j.xjon.2026.101729_bib1","doi-asserted-by":"crossref","first-page":"112","DOI":"10.1016\/j.jtcvs.2004.09.005","article-title":"Contemporary results of surgery in acute type A aortic dissection: the International Registry of Acute Aortic Dissection experience","volume":"129","author":"Trimarchi","year":"2005","journal-title":"J Thorac Cardiovasc Surg"},{"issue":"20","key":"10.1016\/j.xjon.2026.101729_bib2","doi-asserted-by":"crossref","first-page":"2031","DOI":"10.1161\/CIRCULATIONAHA.112.000483","article-title":"Population-based study of incidence and outcome of acute aortic dissection and premorbid risk factor control","volume":"127","author":"Howard","year":"2013","journal-title":"Circulation"},{"issue":"9","key":"10.1016\/j.xjon.2026.101729_bib3","doi-asserted-by":"crossref","first-page":"1662","DOI":"10.1016\/j.amjcard.2017.07.067","article-title":"Meta-analysis of circadian variation in the onset of acute aortic dissection","volume":"120","author":"Takagi","year":"2017","journal-title":"Am J Cardiol"},{"issue":"3","key":"10.1016\/j.xjon.2026.101729_bib4","doi-asserted-by":"crossref","first-page":"3117","DOI":"10.1016\/j.ijcard.2013.04.065","article-title":"Outcomes of weekend versus weekday admission for acute aortic dissection or rupture: a retrospective study on the Italian National Hospital Database","volume":"168","author":"Gallerani","year":"2013","journal-title":"Int J Cardiol"},{"issue":"5","key":"10.1016\/j.xjon.2026.101729_bib5","doi-asserted-by":"crossref","first-page":"1615","DOI":"10.1016\/j.jvs.2018.09.030","article-title":"Forecasting aortic aneurysm rupture: a systematic review of seasonal and atmospheric associations","volume":"69","author":"Choong","year":"2019","journal-title":"J Vasc Surg"},{"issue":"5","key":"10.1016\/j.xjon.2026.101729_bib6","doi-asserted-by":"crossref","first-page":"992","DOI":"10.1161\/01.STR.29.5.992","article-title":"Circadian variation in the timing of stroke onset","volume":"29","author":"Elliott","year":"1998","journal-title":"Stroke"},{"key":"10.1016\/j.xjon.2026.101729_bib7","doi-asserted-by":"crossref","first-page":"132","DOI":"10.1016\/j.ijcard.2019.04.035","article-title":"Sex-specific differences regarding seasonal variations of incidence and mortality in patients with myocardial infarction in Germany","volume":"287","author":"Keller","year":"2019","journal-title":"Int J Cardiol"},{"issue":"3","key":"10.1016\/j.xjon.2026.101729_bib8","doi-asserted-by":"crossref","first-page":"792","DOI":"10.1016\/j.jvs.2018.05.248","article-title":"Impact of weekend treatment on short-term and long-term survival after urgent repair of ruptured aortic aneurysms in Germany","volume":"69","author":"Behrendt","year":"2019","journal-title":"J Vasc Surg"},{"issue":"6","key":"10.1016\/j.xjon.2026.101729_bib9","doi-asserted-by":"crossref","first-page":"766","DOI":"10.1016\/j.ejvs.2023.08.028","article-title":"Editor\u2019s Choice\u2014temporal fluctuations of hospital incidence and mortality of ruptured abdominal aortic aneurysms in Germany: a secondary data analysis of German hospital episode statistics 2009-2018","volume":"66","author":"Trenner","year":"2023","journal-title":"Eur J Vasc Endovasc Surg"},{"issue":"5","key":"10.1016\/j.xjon.2026.101729_bib10","doi-asserted-by":"crossref","first-page":"158","DOI":"10.1002\/bjs5.24","article-title":"Weekend effect in non-elective abdominal aortic aneurysm repair","volume":"1","author":"Ambler","year":"2017","journal-title":"BJS Open"},{"issue":"48","key":"10.1016\/j.xjon.2026.101729_bib11","first-page":"820","article-title":"The effects of minimum caseload requirements on management and outcome in abdominal aortic aneurysm repair","volume":"117","author":"Trenner","year":"2020","journal-title":"Dtsch Arztebl Int"},{"issue":"6","key":"10.1016\/j.xjon.2026.101729_bib12","doi-asserted-by":"crossref","first-page":"852","DOI":"10.1016\/j.ejvs.2018.02.024","article-title":"Spatial analysis of hospital incidence and in hospital mortality of abdominal aortic aneurysms in germany: secondary data analysis of nationwide hospital episode (DRG) data","volume":"55","author":"Kuehnl","year":"2018","journal-title":"Eur J Vasc Endovasc Surg"},{"key":"10.1016\/j.xjon.2026.101729_bib13","unstructured":"FDZ der Statistischen \u00c4mter des Bundes und der L\u00e4nder: Fallpauschalenbezogene Krankenhausstatistik (Research data centers of the federal statistical office: DRG statistics). 2010-2023 own calculations."},{"issue":"S 01","key":"10.1016\/j.xjon.2026.101729_bib14","doi-asserted-by":"crossref","first-page":"e145","DOI":"10.1055\/s-0042-108647","article-title":"A Consensus German Reporting Standard for Secondary Data Analyses, Version 2 (STROSA-STandardisierte BerichtsROutine f\u00fcr Sekund\u00e4rdatenAnalysen)","volume":"78","author":"Swart","year":"2016","journal-title":"Gesundheitswesen"},{"issue":"9596","key":"10.1016\/j.xjon.2026.101729_bib15","doi-asserted-by":"crossref","first-page":"1453","DOI":"10.1016\/S0140-6736(07)61602-X","article-title":"The STrengthening the Reporting of Observational Studies in Epidemiology (STROBE) statement: guidelines for reporting observational studies","volume":"370","author":"von Elm","year":"2007","journal-title":"Lancet"},{"issue":"6","key":"10.1016\/j.xjon.2026.101729_bib16","doi-asserted-by":"crossref","DOI":"10.1161\/JAHA.119.014534","article-title":"Effect modification of sex and age for the hospital volume-outcome relationship in abdominal aortic aneurysm treatment: secondary data analysis of the nationwide German Diagnosis Related Groups statistics from 2005 to 2014","volume":"9","author":"Trenner","year":"2020","journal-title":"J Am Heart Assoc"},{"issue":"2","key":"10.1016\/j.xjon.2026.101729_bib17","doi-asserted-by":"crossref","first-page":"107","DOI":"10.1024\/0301-1526\/a000830","article-title":"Regional variation in endovascular treatment rate and in-hospital mortality of abdominal aortic aneurysms in Germany","volume":"49","author":"Trenner","year":"2020","journal-title":"Vasa"},{"issue":"2","key":"10.1016\/j.xjon.2026.101729_bib18","doi-asserted-by":"crossref","first-page":"185","DOI":"10.1016\/j.ejvs.2017.11.016","article-title":"Editor\u2019s Choice\u2014high annual hospital volume is associated with decreased in hospital mortality and complication rates following treatment of abdominal aortic aneurysms: secondary data analysis of the nationwide German DRG statistics from 2005 to 2013","volume":"55","author":"Trenner","year":"2018","journal-title":"Eur J Vasc Endovasc Surg"},{"issue":"6","key":"10.1016\/j.xjon.2026.101729_bib19","doi-asserted-by":"crossref","first-page":"852","DOI":"10.1016\/j.ejvs.2018.02.024","article-title":"Spatial analysis of hospital incidence and in hospital mortality of abdominal aortic aneurysms in Germany: secondary data analysis of nationwide hospital episode (DRG) data","volume":"55","author":"Kuehnl","year":"2018","journal-title":"Eur J Vasc Endovasc Surg"},{"issue":"6","key":"10.1016\/j.xjon.2026.101729_bib20","doi-asserted-by":"crossref","first-page":"626","DOI":"10.1097\/MLR.0b013e31819432e5","article-title":"A modification of the Elixhauser comorbidity measures into a point system for hospital death using administrative data","volume":"47","author":"van Walraven","year":"2009","journal-title":"Med Care"},{"issue":"11","key":"10.1016\/j.xjon.2026.101729_bib21","doi-asserted-by":"crossref","first-page":"1130","DOI":"10.1097\/01.mlr.0000182534.19832.83","article-title":"Coding algorithms for defining comorbidities in ICD-9-CM and ICD-10 administrative data","volume":"43","author":"Quan","year":"2005","journal-title":"Med Care"},{"issue":"02","key":"10.1016\/j.xjon.2026.101729_bib22","first-page":"120","article-title":"Good practice of secondary data analysis (GPS): guidelines and recommendations","volume":"77","author":"Swart","year":"2015","journal-title":"Gesundheitswesen"},{"issue":"4","key":"10.1016\/j.xjon.2026.101729_bib23","doi-asserted-by":"crossref","first-page":"359","DOI":"10.1016\/j.ejvs.2005.05.005","article-title":"In-hospital operative mortality of ruptured abdominal aortic aneurysm: a population-based analysis of 5593 patients in the Netherlands over a 10-year period","volume":"30","author":"Visser","year":"2005","journal-title":"Eur J Vasc Endovasc Surg"},{"issue":"3","key":"10.1016\/j.xjon.2026.101729_bib24","doi-asserted-by":"crossref","first-page":"369","DOI":"10.1016\/j.jacasi.2021.11.010","article-title":"In-hospital mortality of patients with acute type A aortic dissection hospitalized on weekends versus weekdays","volume":"2","author":"Takahashi","year":"2022","journal-title":"JACC Asia"},{"issue":"2","key":"10.1016\/j.xjon.2026.101729_bib25","doi-asserted-by":"crossref","first-page":"318","DOI":"10.1016\/j.jvs.2014.02.052","article-title":"Effects of weekend admission on the outcomes and management of ruptured aortic aneurysms","volume":"60","author":"Groves","year":"2014","journal-title":"J Vasc Surg"},{"issue":"3","key":"10.1016\/j.xjon.2026.101729_bib26","doi-asserted-by":"crossref","first-page":"126","DOI":"10.4070\/kcj.2023.0266","article-title":"Off-hours surgery and mortality in patients with type A aortic dissection repair: a systematic review and meta-analysis","volume":"54","author":"Liu","year":"2024","journal-title":"Korean Circ J"},{"issue":"4","key":"10.1016\/j.xjon.2026.101729_bib27","doi-asserted-by":"crossref","first-page":"531","DOI":"10.1016\/j.ejvs.2020.03.009","article-title":"Impact of centralisation on abdominal aortic aneurysm repair outcomes: early experience in Catalonia","volume":"60","author":"Tripodi","year":"2020","journal-title":"Eur J Vasc Endovasc Surg"}],"container-title":["JTCVS Open"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S266627362600152X?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S266627362600152X?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2026,7,9]],"date-time":"2026-07-09T10:03:38Z","timestamp":1783591418000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S266627362600152X"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,6]]},"references-count":27,"alternative-id":["S266627362600152X"],"URL":"https:\/\/doi.org\/10.1016\/j.xjon.2026.101729","relation":{},"ISSN":["2666-2736"],"issn-type":[{"value":"2666-2736","type":"print"}],"subject":[],"published":{"date-parts":[[2026,6]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Off-hour admission and mortality in acute type A aortic dissection: A nationwide cohort of 25,608 surgically treated cases","name":"articletitle","label":"Article Title"},{"value":"JTCVS Open","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.xjon.2026.101729","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2026 The Author(s). Published by Elsevier Inc. on behalf of The American Association for Thoracic Surgery.","name":"copyright","label":"Copyright"}],"article-number":"101729"}}