EVALUATION OF NEWLY DEVISED DUODENOFIBERSCOPE DU-XL3 IN ERCP AND EST PROCEDURE

Abstract

In order to simplify the procedure in endoscopic retrograde cholangiography, a new model of a duodenofiberscope, type DU-XL3 (Fujinon) was evaluated. This new fiberscope has a new advantage. The distance between the center of the image guide and the edge of the biopsy channel is designed to be shorter than the conventional type. This special arrangement enabled us to see the tip of the cannula near the center of the visual field through the endoscope even if the cannula was erected for selective cholangiography. This fiberscope was used in 27 ERCP examinations. A rate of visualization was 92.6% in selective cholangiography, and 100% in selective pancreatography. And EST was also successfully and safely carried out in two cases of choledochus stones with this fiberscope. Selective cholangiography could easily be obtained even by the docter of little experience on ERCP examination. This fiberscope was useful to shorten the time of ERCP examination and to prevent post-ERCP pancreatitis due to unskillfulness by avoiding excessive pancreatography.