{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,30]],"date-time":"2026-06-30T23:18:10Z","timestamp":1782861490997,"version":"3.54.5"},"reference-count":36,"publisher":"Georg Thieme Verlag KG","issue":"05","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Zentralbl Chir"],"published-print":{"date-parts":[[2023,10]]},"abstract":"<jats:title>Zusammenfassung<\/jats:title><jats:p>Die EVAR (englisch: Endovascular Aortic Repair) ist inzwischen die h\u00e4ufigste Methode zur\n        Ausschaltung eines Bauchaortenaneurysmas, birgt jedoch prinzipiell und \u2013 nach neusten\n        Erkenntnissen klinisch best\u00e4tigt \u2013 die Gefahr sp\u00e4ter auftretender Komplikationen. Diese\n        k\u00f6nnen u.\u00a0a. durch ein (sp\u00e4tes) Aneurysmasackwachstum entstehen. Sind konservative und\n        interventionelle Therapiema\u00dfnahmen diesbez\u00fcglich ausgesch\u00f6pft, so ist eine offene Konversion\n        vonn\u00f6ten, um einer Aneurysmaruptur vorzubeugen. Hierzu stehen mehrere Verfahren zur\n        Verf\u00fcgung, bei denen die EVAR-Prothese komplett erhalten werden kann oder (partiell)\n        entfernt wird. Die sp\u00e4te offene Semikonversion mit In-situ-Erhalt der EVAR-Prothese und\n        Raffung des Aneurysmasacks kann f\u00fcr den Patienten im Vergleich zur vollst\u00e4ndigen Konversion\n        eine weniger belastende Operationsmethode darstellen. Ziel der vorliegenden Arbeit ist die\n        Darstellung der Operationsmethode samt Indikationen und technischen Hinweisen sowie die\n        Pr\u00e4sentation der Ergebnisse im rezenten klinikeigenen Patientenkollektiv.<\/jats:p><jats:p>Alle Patienten, die in unserer Klinik f\u00fcr Gef\u00e4\u00dfchirurgie und Phlebologie aufgrund einer\n        (Typ-II-)Endoleckage semikonvertiert wurden, wurden eingeschlossen. Alle Daten werden als n\n        (%) bzw. Median (Spannweite) angegeben.<\/jats:p><jats:p>Zwischen 6\/2019 und 3\/2023 wurde bei 13 Patienten eine Semikonversion durchgef\u00fchrt.\n        Diese fand 6 (2\u201312) Jahre (Median, Spannweite) nach der initialen EVAR statt, der\n        Aneurysmasackdurchmesser lag zum Zeitpunkt der Semikonversion bei 69\u00a0mm (58\u201395\u00a0mm). Die\n        Operationszeit lag bei 114\u00a0min (97\u2013147\u00a0min), der Blutverlust bei 100\u00a0ml (100\u20131500\u00a0ml). F\u00fcnf\n        (38%) Patienten erhielten intraoperativ, 2 (15%) postoperativ Bluttransfusionen. Der\n        Aufenthalt auf der Intensivstation dauerte 1 (1\u20135) Tage, die Hospitalisationszeit betrug 8\n        (6\u201311) Tage. Postoperative Komplikationen waren Darmatonie (3 [23%], 1 [8%] mit\n        Nausea\/Emesis und Magensondeneinlage), An\u00e4mie (2 [15%]), Hyponatri\u00e4mie (2 [15%]), Delir (1\n        [8%]), COVID-19-Infektion (1 [8%]) sowie 1 [8%] intraabdominelle Nachblutung mit der\n        Indikation zur operativen Revision und der Transfusion von 8 EKs.<\/jats:p><jats:p>Die Semikonversion ist eine sicher durchf\u00fchrbare und mit weniger schweren Komplikationen\n        behaftete Operationsmethode f\u00fcr ein ausgew\u00e4hltes Patientenkollektiv und sollte als\n        Alternative zu invasiveren Methoden mit (partieller) Prothesenentfernung in Betracht gezogen\n        werden. Weitere Untersuchungen zum Vergleich der Semikonversion mit der vollen Konversion\n        sind im Langzeitverlauf notwendig um ihre Vorteile zu belegen.<\/jats:p>","DOI":"10.1055\/a-2174-7563","type":"journal-article","created":{"date-parts":[[2023,10,17]],"date-time":"2023-10-17T04:01:03Z","timestamp":1697515263000},"page":"445-453","source":"Crossref","is-referenced-by-count":2,"title":["Die sp\u00e4te offene Semikonversion mit Prothesenerhalt bei (Typ II\u00ad)Endoleckagen mit sp\u00e4tem Aneurysmasackwachstum nach EVAR - Indikationen, Methode und Ergebnisse im eigenen Patientenkollektiv"],"prefix":"10.1055","volume":"148","author":[{"given":"Mikolaj","family":"Walensi","sequence":"additional","affiliation":[{"name":"Klinik f\u00fcr Gef\u00e4\u00dfchirurgie und Phlebologie, Contilia Gruppe, Elisabeth-Krankenhaus, Essen, Deutschland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Iuri","family":"Krasniuk","sequence":"additional","affiliation":[{"name":"Klinik f\u00fcr Gef\u00e4\u00dfchirurgie und Phlebologie, Contilia Gruppe, Elisabeth-Krankenhaus, Essen, Deutschland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nikolaos","family":"Tsilimparis","sequence":"additional","affiliation":[{"name":"Abteilung f\u00fcr Gef\u00e4\u00dfchirurgie - Vaskul\u00e4re und Endovaskul\u00e4re Chirurgie, LMU Klinikum M\u00fcnchen, M\u00fcnchen, Deutschland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Johannes N.","family":"Hoffmann","sequence":"additional","affiliation":[{"name":"Klinik f\u00fcr Gef\u00e4\u00dfchirurgie und Phlebologie, Contilia Gruppe, Elisabeth-Krankenhaus, Essen, Deutschland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"194","published-online":{"date-parts":[[2023,10,16]]},"reference":[{"key":"ref1","doi-asserted-by":"publisher","first-page":"491","DOI":"10.1007\/BF02015271","article-title":"Transfemoral intraluminal graft implantation for abdominal aortic\n          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