{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,3]],"date-time":"2026-06-03T07:35:47Z","timestamp":1780472147628,"version":"3.54.1"},"reference-count":56,"publisher":"Georg Thieme Verlag KG","issue":"03","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Zentralbl Chir"],"published-print":{"date-parts":[[2022,6]]},"abstract":"<jats:title>Zusammenfassung<\/jats:title><jats:p>Neuroendokrine Tumoren des Verdauungstraktes (GEP-NET) sind eine seltene Tumorentit\u00e4t, die h\u00e4ufig als Zufallsbefund diagnostiziert werden. Ein gro\u00dfer Teil dieser Zufallsdiagnosen wird im\n          Rahmen einer endoskopischen Untersuchung gestellt. W\u00e4hrend die vollst\u00e4ndige Entfernung des Tumors im Sinne einer kurativen chirurgischen Resektion nach onkologischen Kriterien das\n          Standardvorgehen f\u00fcr lokalisierte Tumorerkrankungen ist, kann bei kleinen Tumoren ohne Hinweis und Risiko f\u00fcr eine lymphogene Metastasierung eine endoskopische Abtragung in gleicher\n          Intention erfolgen. W\u00e4hrend dies f\u00fcr Magen-, Duodenum- und Rektum-NET der Standard ist, sollten NET des Jejunums und Ileums aufgrund der hohen Metastasierungsrate trotz geringer Tumorgr\u00f6\u00dfe\n          regelhaft nicht endoskopisch angegangen werden. Die Grenze f\u00fcr eine endoskopische Resektion ergibt sich sowohl durch die technische Machbarkeit im Sinne des Erreichens einer R0-Resektion,\n          der erwarteten Komplikationen im Sinne von Blutung und Perforationen als auch durch das vermutete Risiko f\u00fcr eine lymphogene Metastasierung. Generell wird eine endoskopische Resektion bei\n          Befunden &lt;\u00a01\u00a0cm regelhaft empfohlen, da sowohl die gute technische Machbarkeit als auch das geringe Metastasierungsrisiko f\u00fcr eine endoskopische Resektion sprechen. Bei allen Befunden\n          \u00fcber 2\u00a0cm Gr\u00f6\u00dfe sind sowohl die technischen Erfolgsaussichten so niedrig als auch das Metastasierungsrisiko so hoch, dass in dieser Situation regelhaft ein chirurgisches Vorgehen erfolgen\n          sollte. Es bleibt somit ein Graubereich bei der Tumorgr\u00f6\u00dfe zwischen 1 und 2\u00a0cm, wo sowohl endoskopische, aber auch chirurgische Resektionsverfahren sinnvoll eingesetzt werden k\u00f6nnen.\n          Zunehmend kommen auch gemeinsame Eingriffe im Sinne eines endoskopisch-laparoskopischen Rendezvous-Verfahrens zum Einsatz \u2013 insbesondere im Duodenum bieten sich diese Eingriffe an, um eine\n          minimale Resektion mit gr\u00f6\u00dftm\u00f6glicher R0-Erfolgsrate und niedriger Perforationsrate zu erreichen.<\/jats:p>","DOI":"10.1055\/a-1829-7370","type":"journal-article","created":{"date-parts":[[2022,6,15]],"date-time":"2022-06-15T22:40:32Z","timestamp":1655332832000},"page":"256-263","source":"Crossref","is-referenced-by-count":1,"title":["Spannungsfeld endoskopische Resektionsverfahren bei GEP-NET \/\/ Endoscopic resection for GEP-NET"],"prefix":"10.1055","volume":"147","author":[{"given":"Hanno","family":"Ehlken","sequence":"additional","affiliation":[{"name":"Klinik und Poliklinik f\u00fcr interdisziplin\u00e4re Endoskopie, Universit\u00e4tsklinikum Hamburg-Eppendorf, Hamburg, Deutschland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fadi","family":"Younis","sequence":"additional","affiliation":[{"name":"Klinik und Poliklinik f\u00fcr interdisziplin\u00e4re Endoskopie, Universit\u00e4tsklinikum Hamburg-Eppendorf, Hamburg, Deutschland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stefan","family":"Wolter","sequence":"additional","affiliation":[{"name":"Klinik f\u00fcr Allgemein-, Viszeral und Thoraxchirurgie, Universit\u00e4tsklinikum Hamburg-Eppendorf, Hamburg, Deutschland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J\u00f6rg","family":"Schrader","sequence":"additional","affiliation":[{"name":"I. 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