Self-Expanding Metallic Stent Fracture in the Treatment of Malignant Biliary Obstruction
Table 2
Demographic characteristics, across/above the ampulla, balloon dilation, number of stents, stent patency time, and survival time of the 156 study patients.
Nonstent fracture ()
Stent fracture ()
/
value
Sex, M/F
90/60
4/2
0.107
0.55
Mean age ± SD, years
67.1 ± 11.6
76.0 ± 8.0
1.852
0.07
Above the ampulla, n
51
0
3.031
0.09
Across the ampulla, n
99
6
Nondilation, n
49
0
2.858
0.10
Balloon dilation, n
101
6
Single stent, n
140
4
5.778
0.07
Multistent, n
10
2
Stent patency time, days
159.3 ± 73.6 (median, 165.5)
151.8 ± 67.8 (median, 160.5)
0.414
0.52
Survival time, days
283.7 ± 126.1 (median, 289.0)
399.7 ± 147.6 (median, 364.0)
5.952
0.16
SD: standard deviation, Nonstent fracture versus stent fracture groups.
