Tohda G, Dochin M. Management of endoscopic biliary stenting for choledocholithiasis: Evaluation of stent-exchange intervals. World J Gastrointest Endosc 2018; 10(1): 45-50 [PMID: 29375741 DOI: 10.4253/wjge.v10.i1.45]
Corresponding Author of This Article
Gen Tohda, MD, PhD, Chief Doctor, Department of Gastroenterology, Fukui Kosei Hospital, Shimo-rokujyo 201, Fukui 918-8537, Japan. gtoda@koseikaigroup.jp
Research Domain of This Article
Gastroenterology & Hepatology
Article-Type of This Article
Retrospective Study
Open-Access Policy of This Article
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World J Gastrointest Endosc. Jan 16, 2018; 10(1): 45-50 Published online Jan 16, 2018. doi: 10.4253/wjge.v10.i1.45
Table 1 Characteristics of patients who underwent regular stent exchange, n (%)
Group A (n = 35)
Group B (n = 35)
P value
Stent-exchange schedule
6 mo
12 mo
Age, yr
82.9 (77-87)
84.4 (76-89)
NS
Sex, male/female
15/20
16/19
NS
Periampullary diverticulum
7 (20.0)
8 (22.9)
NS
Sphincterotomy
30 (85.7)
29 (82.9)
NS
Post-ERCP pancreatitis
1 (2.9)
1 (2.9)
NS
Reason for endoscopic stone removal failure
No. of stones
16 (45.7)
14 (40.0)
NS
Size of stones
17 (48.6)
18 (51.4)
NS
Anatomical difficulty
2 (5.7)
3 (8.6)
NS
Follow-up periods, mo
27.3 (12-40)
26.5 (14-37)
NS
Table 2 Stent patency of patients who underwent regular stent exchange, n (%)
Group A (n = 35)
Group B (n = 35)
P value
Stent-exchange schedule
6 mo
12 mo
Stent patency at scheduled time
32 (91.4)
31 (88.6)
NS
Stent exchange prior to schedule
3 (8.6)
4 (11.4)
NS
Details of stent troubles
Stent occlusion
1 (2.9)
3 (8.6)
< 0.05
Stent migration
2 (5.7)
1 (2.9)
NS
Acute cholangitis
1 (2.9)
3 (8.6)
< 0.05
Biliary-related mortality
0
0
NA
Table 3 Characteristics of patients who underwent stent exchange on demand, n (%)
Group C (n = 17)
Age, yr
84.1 (76-90)
Sex, male/female
6/11
Periampullary diverticulum
4 (23.5)
Sphincterotomy
14 (82.3)
Post-ERCP pancreatitis
0
Reasons for endoscopic stone removal failure
No. of stones
9 (52.9)
Size of stones
6 (35.3)
Anatomical difficulty
2 (11.8)
Reasons for rejecting scheduled stent exchange
Cardiovascular diseases
4 (23.5)
Stroke sequelae
4 (23.5)
Age factors
3 (17.6)
Dementia
3 (17.6)
Malignancy
3 (17.6)
Follow-up periods, mo
24.8 (14-32)
Table 4 Stent patency of patients who underwent stent exchange on demand, n (%)
Group C (n = 17)
Stent-exchange cases
12 (70.6)
Indication for stent exchange
Acute cholangitis
6 (35.3)
Obstructive jaundice
4 (23.5)
Liver dysfunction
2 (11.8)
Details of stent troubles
Stent occlusion
10 (58.8)
Stent migration
2 (11.8)
Duration of stent patency
16.3 (12.7-21.2)
Biliary-related mortality
0
Citation: Tohda G, Dochin M. Management of endoscopic biliary stenting for choledocholithiasis: Evaluation of stent-exchange intervals. World J Gastrointest Endosc 2018; 10(1): 45-50