A Newly Developed Variable Stiffness Duodenoscope for Diagnostic and Therapeutic Endoscopic Retrograde Cholangiopancreatography

Table 2

Characteristics of patients of each duodenoscope.

Type of duodenoscope	TJF-Y0001	JF-260V	TJF-260V
Number of ERCP sessions	86	60	67
Mean age, years	61.3	65.4	60.5
Gender, men/women	48/38	35/25	33/34
Number of prior Billroth-I gastrectomy	1	1	0
Periampullary diverticulum, %	23%	33%	21%
Number of duodenal stenoses (benign/malignant)	4 (2/2)	2 (0/2)	3 (2/1)

ERCP, endoscopic retrograde cholangiography.