Y-Shaped Bilateral Self-Expandable Metallic Stent Placement for Malignant Hilar Biliary Obstruction: Data from a Referral Center for Palliative Care

Table 1

Studies on bilateral self expandable metallic stent placement in malignant hilar strictures.

Study	Number of patients	Type of SEMS	Technical success	Functional success	Tumor ingrowth; or overgrowth	Complications; (early/late)	SEMS patency
Lee et al. (2007) [15]	10	Niti-S	80%	100%	25%	0%/0%	217 days
Park et al. (2009) [16]	35	Bonastent	94.3%	100%	0%	0%/0%	150 days
Kim et al. (2009) [17]	34	Niti-S	85.3%	100%	31%	10.3%/37.9%	186 days
Chahal and Baron (2010) [18]	21	Flexxus	100%	—	33.3%	—	189 days
Kogure et al. (2011) [19]	5	Niti-S LGD*	100%	—	40%	20%/—	202 days
Kanno et al. (2011) [20]	20	Niti-S	100%	95%	30%	5%/0%	250 days
Hwang et al. (2011) [22]	30	Niti-S	86.7%	100%	38.5%	10%/0%	176 days
Naitoh et al. (2012) [23]	24	Niti-S	100%	100%	42%	4%/8%	104 days
Kim et al. (2013) [24]	66	Niti-S	87.9%	100%	34.2%	12.1%/55.2%	152 days
Current study	20	Niti-S	100%	100%	10%	5%/10%	210 days

∗Large cell D-type.