Measurement of radial and axial forces of biliary self-expandable metallic stents

被引:194
作者
Isayama, Hiroyuki [1 ]
Nakai, Yousuke
Toyokawa, Yoshihide [3 ]
Togawa, Osamu
Gon, Chimyon
Ito, Yukiko
Yashima, Yoko
Yagioka, Hiroshi
Kogure, Hirofumi
Sasaki, Takashi
Arizumi, Toshihiko
Matsubara, Saburo
Yamamoto, Natsuyo
Sasahira, Naoki
Hirano, Kenji
Tsujino, Takeshi
Toda, Nobuo
Tada, Minoru
Kawabe, Takao [2 ]
Omata, Masao [2 ]
机构
[1] Univ Tokyo, Fac Med, Dept Gastroenterol, Bunkyo Ku, Tokyo 1138655, Japan
[2] Univ Tokyo, Fac Med, Dept Endoscopy & Endoscop Surg, Tokyo 1138655, Japan
[3] Zeon Med Inc, Ctr Res & Dev, Tokyo, Japan
关键词
RANDOMIZED-TRIAL; MECHANICAL-PROPERTIES; DIAMOND STENTS; OBSTRUCTION; PALLIATION; WALLSTENTS; MANAGEMENT; EFFICACY; BYPASS;
D O I
10.1016/j.gie.2008.09.032
中图分类号
R57 [消化系及腹部疾病];
学科分类号
摘要
Background: Efforts to understand the properties of self-expandable metallic stents (SEMSs) through their mechanical properties have progressed. Among them, radial force (RF) is well known as an expanding force, but axial force (AF) has not been measured before. Correlations of these properties to clinical results are not well known. Objective: We measured RF and AF of 14 different SEMSs and discussed the results in terms of clinical implications. Design: Experimental study. Subjects: Measurement of RF and AF of 14 different covered and uncovered SEMSs. Methods: RF was measured with an RF measurement machine manufactured by Machine Solution, and AF was measured with in-house equipment. Results: Measurements of U in the process of expansion showed characteristic patterns closely related to the Structures and materials of SEMSs. Results of AF measurement can be classified into 3 groups: high, medium, and low AF, depending on the type of SEMS. AF decreased with an increase of the length of stents. A plot of RF against AF revealed 3 distinguished RF/AF, combinations and indicated the importance of understanding the properties by not only U or AF individually but also by RF/AF combination. Limitations: In vitro study using measurement equipment. Conclusion: It was demonstrated that a combination of RF and AF is more effective than RF or AF individually in understanding the clinical implications of SEMSs. More work is needed to correlate mechanical properties with clinical results by designing model experiments. (Gastrointest Endosc 2009;70:37-44.)
引用
收藏
页码:37 / 44
页数:8
相关论文
共 50 条
[21]   Fully covered self-expandable metallic stents in the management of complex biliary leaks: preliminary data - a case series [J].
Wang, A. Y. ;
Ellen, K. ;
Berg, C. L. ;
Schmitt, T. M. ;
Kahaleh, M. .
ENDOSCOPY, 2009, 41 (09) :781-786
[22]   Fully covered self-expandable metal stents for treatment of benign biliary strictures [J].
Kaffes, Arthur J. ;
Liu, Ken .
GASTROINTESTINAL ENDOSCOPY, 2013, 78 (01) :13-21
[23]   Self-expandable metallic stents for malignant gastric outlet obstruction [J].
Ivo Boškoski ;
Andrea Tringali ;
Pietro Familiari ;
Massimiliano Mutignani ;
Guido Costamagna .
Advances in Therapy, 2010, 27 :691-703
[24]   Tracheal Self-Expandable Metallic Stents: A Comparative Study of Three Different Stents in a Rabbit Model [J].
Serrano, Carolina ;
Lostale, Fernando ;
Rodriguez-Panadero, Francisco ;
de Blas, Ignacio ;
Laborda, Alicia ;
Angel de Gregorio, Miguel .
ARCHIVOS DE BRONCONEUMOLOGIA, 2016, 52 (03) :123-130
[25]   Self-expandable metallic stents for malignant gastric outlet obstruction [J].
Boskoski, Ivo ;
Tringali, Andrea ;
Familiari, Pietro ;
Mutignani, Massimiliano ;
Costamagna, Guido .
ADVANCES IN THERAPY, 2010, 27 (10) :691-703
[26]   Angle of covered self-expandable metallic stents after placement is a risk factor for recurrent biliary obstruction [J].
Tanoue, Kojiro ;
Maruyama, Hirotsugu ;
Ishikawa-Kakiya, Yuki ;
Kinoshita, Yosuke ;
Hayashi, Kappei ;
Yamamura, Masafumi ;
Ominami, Masaki ;
Nadatani, Yuji ;
Fukunaga, Shusei ;
Otani, Koji ;
Hosomi, Shuhei ;
Tanaka, Fumio ;
Kamata, Noriko ;
Nagami, Yasuaki ;
Taira, Koichi ;
Watanabe, Toshio ;
Fujiwara, Yasuhiro .
WORLD JOURNAL OF HEPATOLOGY, 2022, 14 (05) :992-1005
[27]   The Role of Self-Expandable Metallic Stents in the Treatment of Malignant Strictures in all Segments of the Gastrointestinal Tract [J].
Cagatay, A. K. ;
Sayar, Suleyman ;
Kilic, Ebru Tarikci ;
Kahraman, Resul ;
Ozturk, Oguzhan ;
Ozdil, Kamil .
INDIAN JOURNAL OF PALLIATIVE CARE, 2023, 29 (01) :64-69
[28]   A novel fully covered self-expandable segmental metallic stents for the treatment of refractory esophageal stenosis [J].
Bi, Yonghua ;
Ren, Jianzhuang ;
Li, Jindong ;
Yu, Zepeng ;
Han, Xinwei ;
Wu, Gang .
JOURNAL OF THORACIC DISEASE, 2019, 11 (04) :1363-1369
[29]   Efficacy and Safety of Fully Covered Self-Expandable Metallic Stents in Biliary Complications After Liver Transplantation: A Preliminary Study [J].
Traina, Mario ;
Tarantino, Ilaria ;
Barresi, Luca ;
Volpes, Riccardo ;
Gruttadauria, Salvatore ;
Petridis, Ioannis ;
Gridelli, Bruno .
LIVER TRANSPLANTATION, 2009, 15 (11) :1493-1498
[30]   Cholecystitis after Placement of Covered Self-Expandable Metallic Stents in Patients with Distal Malignant Biliary Obstructions [J].
Watanabe, Masafumi ;
Okuwaki, Kosuke ;
Woo, Jun ;
Kida, Mitsuhiro ;
Imaizumi, Hiroshi ;
Iwai, Tomohisa ;
Yamauchi, Hiroshi ;
Kaneko, Toru ;
Hasegawa, Rikiya ;
Kurosu, Takahiro ;
Minato, Naoki ;
Haradome, Hiroki ;
Koizumi, Wasaburo .
CLINICAL ENDOSCOPY, 2021, 54 (04) :589-595