Comparing the mechanical properties of a self-expandable metallic stent for colorectal obstruction: Proposed measurement method of axial force using a new measurement machine.
axial force
colorectal obstruction
mechanical property
radial force
self-expandable metallic stent
Journal
Digestive endoscopy : official journal of the Japan Gastroenterological Endoscopy Society
ISSN: 1443-1661
Titre abrégé: Dig Endosc
Pays: Australia
ID NLM: 9101419
Informations de publication
Date de publication:
Jan 2021
Jan 2021
Historique:
received:
18
12
2019
revised:
22
02
2020
accepted:
16
03
2020
pubmed:
21
3
2020
medline:
29
7
2021
entrez:
21
3
2020
Statut:
ppublish
Résumé
Colorectal stenting is widely performed using self-expandable metallic stents (SEMSs), but the mechanical properties have not been evaluated. Therefore, we conducted an in vitro study to evaluate the mechanical properties of colorectal SEMSs. Eighteen individual types and sizes of uncovered SEMSs were evaluated for their mechanical properties. Radial force was measured using a measurement machine. Axial force (AF) was measured by two methods: a conventional manual method and a new method using a measurement machine. The correlation of these two methods was evaluated. We also proposed an "AF zero border" that was defined as the angle at which the torque force disappeared. Radial force versus diameter curves and AF versus angle curves were influenced by the structure and the size of each stent. There was excellent correlation of AFs measured by the new and conventional manual method (y = 21.434x, R = 0.881, P < 0.0001). Colorectal SEMSs could be categorized into five subgroups according to the mechanical properties. Most hook-wired SEMSs had the AF of zero border. This is the first report to evaluate the mechanical properties of colorectal SEMSs, and these data may provide useful information for the clinical use and development of colorectal SEMS. Furthermore, the new measurement machine might standardize the measuring method of AF.
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
170-178Informations de copyright
© 2020 Japan Gastroenterological Endoscopy Society.
Références
Dohmoto M. New method: Endoscopic implantation of rectal stent in palliative treatment of malignant stenosis. Endoscopia Dig. 1991; 3: 1507-12.
Saida Y, Sumiyama Y, Nagao J et al. Stent endoprosthesis for obstructing colorectal cancers. Dis. Colon Rectum 1996; 39: 552-5.
Saida Y, Enomoto T, Takabayashi K et al. Outcomes of 141 cases of self-expandable metallic stent placements for malignant and benign colorectal strictures in a single center. Surg. Endosc. 2011; 25: 1748-52.
Yoshida S, Watabe H, Isayama H et al. Feasibility of a new self-expandable metallic stent for patients with malignant colorectal obstruction. Dig. Endosc. 2013; 25: 160-6.
Matsuzawa T, Ishida H, Yoshida S et al. A Japanese prospective multicenter study of self-expandable metal stent placement for malignant colorectal obstruction: Short-term safety and efficacy within 7 days of stent procedure in 513 cases. Gastrointest. Endosc. 2015; 82: 697-707.
Baron TH. Colonic stenting: A palliative measure only or a bridge to surgery? Endoscopy 2010; 42: 163-8.
Global Burden of Disease Cancer Collaboration, Fitzmaurice C, Abate D et al. Global, regional, and national cancer incidence, mortality, years of life lost, years lived with disability, and disability-adjusted life-years for 29 cancer groups, 1990 to 2016: A systematic analysis for the global burden of disease study. JAMA Oncol. 2018; 4: 1553-68.
Repici A, Fregonese D, Costamagna G et al. Ultraflex precision colonic stent placement for palliation of malignant colonic obstruction: A prospective multicenter study. Gastrointest. Endosc. 2007; 66: 920-7.
Repici A, De Caro G, Luigiano C et al. WallFlex colonic stent placement for management of malignant colonic obstruction: A prospective study at two centers. Gastrointest. Endosc. 2008; 67: 77-84.
Lee KM, Shin SJ, Hwang JC et al. Comparison of uncovered stent with covered stent for treatment of malignant colorectal obstruction. Gastrointest. Endosc. 2007; 66: 931-6.
Feo L, Schaffzin DM. Colonic stents: The modern treatment of colonic obstruction. Adv Ther. 2011; 28: 73-86.
Duda SH, Wiskirchen J, Tepe G et al. Physical properties of endovascular stents: An experimental comparison. J. Vasc. Interv. Radiol. 2000; 11: 645-54.
Isayama H, Nakai Y, Toyokawa Y et al. Measurement of radial and axial forces of biliary self-expandable metallic stents. Gastrointest. Endosc. 2009; 70: 37-44.
Hirdes MM, Vleggaar FP, de Beule M et al. In vitro evaluation of the radial and axial force of self-expanding esophageal stents. Endoscopy 2013; 45: 997-1005.
Isayama H, Nakai Y, Kogure H et al. Can we develop self-expandable metallic stents without consideration of mechanical properties? Endoscopy 2014; 46: 715.
Isayama H, Nakai Y, Hamada T et al. Understanding the mechanical forces of self-expandable metal stents in the biliary ducts. Curr. Gastroenterol. Rep. 2016; 18: 64.
Nakai Y, Isayama H, Kogure H et al. Risk factors for covered metallic stent migration in patients with distal malignant biliary obstruction due to pancreatic cancer. J. Gastroenterol. Hepatol. 2014; 29: 1744-9.
Nakai Y, Isayama H, Kawakubo K et al. Metallic stent with high axial force as a risk factor for cholecystitis in distal malignant biliary obstruction. J. Gastroenterol. Hepatol. 2014; 29: 1557-62.
Mbah N, Phillips P, Voor MJ, Martin RCG 2nd. Optimal radial force and size for palliation in gastroesophageal adenocarcinoma: A comparative analysis of current stent technology. Surg. Endosc. 2017; 31: 5076-82.
Saito S, Yoshida S, Isayama H et al. A prospective multicenter study on self-expandable metallic stents as a bridge to surgery for malignant colorectal obstruction in Japan: Efficacy and safety in 312 patients. Surg. Endosc. 2016; 30: 3976-86.
Tomita M, Saito S, Makimoto S et al. Self-expandable metallic stenting as a bridge to surgery for malignant colorectal obstruction: pooled analysis of 426 patients from two prospective multicenter series. Surg. Endosc. 2019; 33: 499-509.