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©The Author(s) 2022.
World J Gastroenterol. May 7, 2022; 28(17): 1860-1870
Published online May 7, 2022. doi: 10.3748/wjg.v28.i17.1860
Published online May 7, 2022. doi: 10.3748/wjg.v28.i17.1860
Table 2 Outcome of biliary self-expandable metallic stent placement
Variable | Hilar group (n = 83) | Lower group (n = 44) | P value |
Year of procedure | 0.18 | ||
2011-2015 | 48 (57.8) | 31 (70.5) | |
2016-2021 | 35 (42.2) | 13 (29.5) | |
Diameter of SEMS | 1.0 | ||
8 mm | 1 (1.2) | 0 (0) | |
10 mm | 82 (98.8) | 44 (100) | |
USEMS:CSEMS | 35:48 | 20:24 | 0.85 |
USEMS used | |||
BileRush | 2 (2.4) | 1 (2.3) | 1 |
Bonastent | 1 (1.2) | 0 (0) | 1 |
HANARO | 1 (1.2) | 0 (0) | 1 |
Niti-S Large cell | 9 (10.8) | 5 (11.4) | 1 |
WallFlex | 24 (28.9) | 7 (15.9) | 0.13 |
X Suit NIR | 0 (0) | 2 (4.5) | 0.12 |
Zilver | 0 (0) | 1 (2.3) | 0.35 |
Zilver 635 | 4 (4.8) | 6 (13.6) | 0.09 |
CSEMS used | |||
Bonastent | 0 (0) | 1 (2.3) | 0.35 |
HANARO | 3 (3.6) | 1 (2.3) | 1 |
Niti-S Comvi | 11 (13.3) | 7 (15.9) | 0.79 |
WallFlex | 28 (33.7) | 7 (15.9) | 0.038 |
X Suit NIR | 0 (0) | 6 (13.6) | < 0.01 |
Technical success | 83 (100) | 44 (100) | |
Functional success | 81 (97.6) | 41 (93.2) | 0.34 |
Adverse events | 2 (2.4) | 0 (0) | 0.54 |
Pancreatitis | 2 | 0 | |
Mild | 2 | 0 | |
Post-EST bleeding | 1 | 0 | |
Severe | 1 | 0 | |
SEMS shortening1 | 1 (1.3) | 2 (4.7) | 0.28 |
SEMS dysfunction | 2 (2.4) | 18 (41) | < 0.01 |
Cause of SEMS dysfunction | |||
Ingrowth | 1 | 3 | |
Overgrowth | 1 | 2 | |
Ingrowth and overgrowth | 8 | ||
Top edge closed by CBD wall | 4 | ||
Dislocation | 1 | ||
Observational period, months | 4.16 ± 5.76 | 9.12 ± 12.07 | 0.012 |
- Citation: Sugimoto M, Takagi T, Suzuki R, Konno N, Asama H, Sato Y, Irie H, Okubo Y, Nakamura J, Takasumi M, Hashimoto M, Kato T, Kobashi R, Yanagita T, Hikichi T, Ohira H. Biliary metal stents should be placed near the hilar duct in distal malignant biliary stricture patients. World J Gastroenterol 2022; 28(17): 1860-1870
- URL: https://www.wjgnet.com/1007-9327/full/v28/i17/1860.htm
- DOI: https://dx.doi.org/10.3748/wjg.v28.i17.1860