Four-Step Classification of Endoscopic Transpapillary Gallbladder Drainage and the Practical Efficacy of Cholangioscopic Assistance.
Michihiro YoshidaItaru NaitohKazuki HayashiNaruomi JinnoYasuki HoriNaruomi JinnoAkihisa KatoKenta KachiGo AsanoNaoki AtsutaHidenori SahashiTomoya KataokaPublished in: Gut and liver (2021)
Optional SG-ETGBD achieved a significantly higher success rate than C-ETGBD alone. Step classification is helpful for determining the technical difficulty of ETGBD and developing a theoretical strategy to apply cholangioscopy in a coordinated manner.