Research Article

Comparison on the Efficacy between Partially Covered Self-Expandable Metal Stent with Funnel-Shaped Enlarged Head versus Uncovered Self-Expandable Metal Stent for Palliation of Gastric Outlet Obstruction

Table 2

Clinical outcomes of 47 patients who achieved technical success.

Enlarged-head group ()uSEMS group () value

Clinical success21/24 (87.5)20/23 (87.2)1.00
Short-term outcomes
 Median procedure time (min)13 (5–40)14 (5–30)0.901
 Length of stent9.08 ± 1.508.65 ± 2.300.46
 Chemotherapy after stent placement3/24 (12.5)6/23 (26.1)0.286
 Oral intake status after stent placement0.197
  Liquid3 (12.5)4 (17.4)
  Soft solid7 (29.2)12 (52.2)
  Low-residual or full diet14 (58.3)6 (26.1)
 Median GOOSS
  Prestent placement1 (0–2)1 (0–2)0.505
  Poststent placement3 (1–3)2 (1–3)0.200
Long-term outcomes
 Recurrent symptoms9 (37.5)8 (34.8)1.00
 Stent patency, days87.1 (8–358)60.4 (2–231)0.204
 Survival duration, days99.3 (19–358)82.1 (11–231)0.418
 Tumor ingrowth2 (8.3)8 (34.8)0.036
 Stent migration4 (16.7)1 (4.34)0.348

Values are n (%) or mean ± SD or median (range). SEMS: self-expandable metallic stent; GOOSS: gastric outlet obstruction scoring system.