Endoscopic removal and trimming of distal self-expandable metallic biliary stents

Table 4 Review of stent removal

Author	Total No. of stent/patient	Type of SEMS	n	Disease	Mean duration of indwelling stent (range)	Success rate (%)
Kahaleh et al[7]	18/18	Uncovered Wallstent	2	BBS	(1-4 mo)	2/2 (100)
		Uncovered Wallstent	2	MBS	(10-11 mo)	2/2 (100)
		Covered Wallstent	6	BBS	4.7 mo (1-10 mo)	6/6 (100)
		Covered Wallstent	8	MBS	4.5 mo (1-16 mo)	7/8 (87.5)
Familiari et al[8]	39/29	Covered Wallstent	12			12/12 (100)
		Shim-Hanarostent	10			9/10 (90)
		Uncovered Wallstent	10	MBS (26)	7.5 mo	5/10 (50)
		Niti-S Biliary Stent	4	BBS (3)	(5 d-16 mo)	3/4 (75)
		Sinus-Superflex Stent	2			0/2 (0)
		Zilver Stent	1			0/1 (0)
Shin et al[9]	30/30	Uncovered Wallstent	5	MBS	Uncovered SEMSs	0/5 (0)
		Zilver Stent	3	MBS	121.4 ± 45.4 d	0/3 (0)
		Covered Wallstent	21	MBS	Covered SEMSs	18/21 (85.7)
		Covered Wallstent	1	BBS	129.7 ± 95.4 d	1/1 (100)
Kahaleh et al[15]	65/65	Covered Wallstent	65	BBS	4 mo (1-28 mo)	65/65 (100)
Present study	19/19	Covered Wallstent	2	MBS	46.5 d (15-78 d)	2/2 (100)
		Covered Wallstent	2	BBS	(100-176 d)	1/2 (50)
		Uncovered Wallstent	1	MBS	180 d	0/1 (0)
		Niti-S Biliary ComVi Stent	11	MBS	136 d (32-280 d)	8/11 (72.7)
		Niti-S Biliary ComVi Stent	1	BBS	8 d	1/1 (100)
		Niti-S Biliary Covered Stent with removal suture	2	BBS	55 d (33-77 d)	2/2 (100)

SEMS: Self-expandable metallic stent; BBS: Benign biliary strictures; MBS: Malignant biliary strictures.