Endoscopic management of occluded metal biliary stents: Metal versus 10F plastic stents

Table 3 Comparison of self-expandable metal stent and plastic stent in subsequent endoscopic retrograde biliary drainage (mean ± SD) n (%)

	SEMS group (n = 29)	PS group (n = 27)	P value
Follow-up period, median (d)	200	133	0.993
Stent occlusion	16 (55.2)	18 (66.7)	0.379
Time to stent occlusion, median (d)1	186	101	0.118
Overall stent patency, median (d)1,2	79	66	0.379
No. of additional biliary drainage procedures	2.54 ± 4.12	1.85 ± 1.95	0.457
Total cost of subsequent biliary drainage procedures ($)	410.04 ± 692.60	630.16 ± 671.63	0.260
Survival after subsequent ERBD, median (d)1	200	133	0.225

¹Results of log-rank test;

²Period between stent insertion and stent occlusion or death of the patient. SEMS: Self-expandable metal stent; PS: Plastic stent; ERBD: Endoscopic retrograde biliary drainage.