Brief Article
Copyright ©2014 Baishideng Publishing Group Co.
World J Gastroenterol. May 7, 2014; 20(17): 5051-5059
Published online May 7, 2014. doi: 10.3748/wjg.v20.i17.5051
Table 3 Age and etiology matched case-control results n (%)
CharacteristicsModified method(n = 23)Conventional method(n = 23)P value
Age mean ± SD, yr62.9 ± 14.664.1 ± 12.80.88
Male17 (74)12 (52)0.13
Etiology of bile duct obstruction> 0.99
Benign11
Perihilar lesion1515
Periampullary lesion55
Peribiliary or metastatic lymph node22
Surgically altered anatomy66> 0.99
Failed guidewire manipulation during ERCP or EUS-guided rendezvous970.54
Technical success rate122 (96)21 (91)> 0.99
Functional success rate220 (91)16 (76)0.24
% of needle knife use in two groups1 (4)1 (4)> 0.99
Procedure time, mean ± SD, min15.3 ± 5.222.3 ± 6.0< 0.001
Median stent patency (95%CI), d216 (73-359)129 (64-194)0.73
Total adverse event (%)2 (9)8 (35)0.07
Early06 (26)30.02
Late2 (9)2 (9)4> 0.99
Overall survival (95%CI), mo7.5 (5.6-9.4)4.3 (1.8-6.8)0.27