Revisit of endoscopic ultrasonography to evaluate depth of invasion of early gastric cancer before endoscopic mucosal dissection compared with conv...

Date 29 June 2016
Event ESMO World Congress on Gastrointestinal Cancer 2016
Session ESMO World Congress on Gastrointestinal Cancer 2016 - Abstracts book
Presenter J.S. Lee
Citation Annals of Oncology (2016) 27 (2): 1-85. 10.1093/annonc/mdw199
Authors J.S. Lee1, J.S. Park2, J.-. Kim1, T.H. Lee1, S.R. Jeon1, H.G. Kim1
  • 1Digestive Disease Center, Institute of Digestive Research, Soonchunhyang University College of Medicine, Seoul, Republic of Korea, /
  • 2Institute for Digestive Research, Soonchunhyang University College of Medicine, Seoul, Republic of Korea, /

Abstract

Endoscopic submucosal dissection(ESD) is currently the standard practice for a subgroup of patients with early gastric cancer (EGC) in Korea and Japan. For the therapeutic decision of ESD or laparoscopic gastrectomy, it is very important to determine the depth of tumor invasion. Endoscopic ultrasonography (EUS) has been used as a reliable method for predicting the invasion depth of EGC. However, recent studies showed that conventional endoscopy (CE) provided reliable accuracy for T staging in EGC (73-82%) using the characteristic endoscopic criteria of the tumor invasion, which is not different with EUS. Moreover, recent meta analysis showed that EUS only has a relatively low accuracy for staging the depth of invasion in EGCs and may be not indispensable in the staging of EGCs. However, there will be some technical problems using EUS. Our aim of study is to compare the diagnostic yield of EUS using contact method of catheter probe with CE using characteristic endoscopic criteria.