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DOI: 10.1055/s-0030-1247271
© Georg Thieme Verlag Stuttgart ˙ New York
Concept of ESD and its Current Status in Japan
Konzept der ESD und aktueller Status in JapanPublication History
Publication Date:
12 March 2010 (online)

Abstract
Endoscopic submucosal dissection (ESD) was developed in Japan for the “en-bloc” resection of early gastric cancer. Main advantages of ESD are the possibility of a histo-pathological evaluation of the entire specimen as well as a lower local recurrence rate compared to “piecemeal” resection. The article summarizes the concept of ESD and gives the an overview of the indications accepted for local treatment of early GI cancers. Technical problems resulting form difficult locations of the lesion are discussed as well as the technical prerequisites and the qualification of the endoscopist. The different steps of the procedure are illustrated on the basis of a gastric ESD.
Zusammenfassung
Die Endoskopische Submukosa-Dissektion (ESD) wurde in Japan zur „En-bloc“-Resektion von Magenfrühkarzinomen entwickelt. Vorteil der ESD gegenüber einer „Piece-meal“-Resektion sind die Möglichkeit der kompletten histologischen Aufarbeitung des Präparates und die geringere Lokalrezidivrate. Der Artikel gibt einen Überblick über das Konzept der ESD und die in Japan derzeit akzeptierten Indikationen für die endoskopische „En-bloc“-Resektion von Frühkarzinomen. Technische Schwierigkeiten bei der ESD, die sich aus unterschiedlichen Lokalisationen ergeben können, werden erläutert. Zudem wird diskutiert, welche technischen Voraussetzungen und Fertigkeiten des Untersuchers erforderlich sind. Der Ablauf einer ESD am Magen wird dargestellt.
Key words
endoscopic resection - technical aspects - ESD - EMR - en-bloc resection - piecemeal resection - IT knife - hook knife - dual knife - endoscopic training
Schlüsselwörter
Gastrointestinaltrakt - endoskopische Resektion - technische Aspekte - ESD - EMR - En-bloc-Resektion - Piece-meal-Resektion - IT-Knife - Hook Knife - Dual Knife - endoskopisches Training
References
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N. YahagiM.D., Ph.D.
Dept. of Gastroenterology, Endoscopy Unit, Toranomon Hospital
2-2-2 Toranomon, Minato-ku
Tokyo
Japan
Email: yahagi-tky@umin.ac.jp