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Original Articles
- Evaluation of the mechanical properties of current biliary self-expandable metallic stents: axial and radial force, and axial force zero border
- Wataru Yamagata, Toshio Fujisawa, Takashi Sasaki, Rei Ishibashi, Tomotaka Saito, Shuntaro Yoshida, Shizuka No, Kouta Inoue, Yousuke Nakai, Naoki Sasahira, Hiroyuki Isayama
- Clin Endosc 2023;56(5):633-649. Published online April 10, 2023
- DOI: https://doi.org/10.5946/ce.2022.201
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Graphical Abstract
Abstract
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ePub - Background
/Aims: Mechanical properties (MPs) and axial and radial force (AF and RF) may influence the efficacy and complications of self-expandable metallic stent (SEMS) placement. We measured the MPs of various SEMSs and examined their influence on the SEMS clinical ability.
Methods
We evaluated the MPs of 29 types of 10-mm SEMSs. RF was measured using a conventional measurement device. AF was measured using the conventional and new methods, and the correlation between the methods was evaluated.
Results
A high correlation in AFs was observed, as measured by the new and conventional manual methods. AF and RF scatterplots divided the SEMSs into three subgroups according to structure: hook-and-cross-type (low AF and RF), cross-type (high AF and low RF), and laser-cut-type (intermediate AF and high RF). The hook-and-cross-type had the largest axial force zero border (>20°), followed by the laser-cut and cross types.
Conclusions
MPs were related to stent structure. Hook-and-cross-type SEMSs had a low AF and high axial force zero border and were considered safest because they caused minimal stress on the biliary wall. However, the increase in RF must be overcome. -
Citations
Citations to this article as recorded by
- Characteristics of four commonly used self-expanding biliary stents: an in vitro study
Jiaywei Tsauo, Yan Fu, Yue Liu, Xiaowu Zhang, He Zhao, Xiao Li
European Radiology Experimental.2024;[Epub] CrossRef - Outcomes of 6‐mm diameter fully covered self‐expandable metal stents for preoperative biliary drainage in pancreatic cancer
Hiroki Nakagawa, Tsuyoshi Takeda, Takeshi Okamoto, Takafumi Mie, Akiyoshi Kasuga, Takashi Sasaki, Masato Ozaka, Takahisa Matsuda, Yoshinori Igarashi, Naoki Sasahira
DEN Open.2024;[Epub] CrossRef - Late-onset Rupture of the Intrahepatic Pseudoaneurysm Developed by Endoscopic Ultrasonography-guided Hepaticogastrostomy: A Case Report and Literature Review
Tesshin Ban, Yoshimasa Kubota, Takuya Takahama, Shun Sasoh, Satoshi Tanida, Makoto Nakamura, Tomoaki Ando, Takashi Joh
Internal Medicine.2024;[Epub] CrossRef - Dosimetric characteristics of self-expandable metallic and plastic stents for transpapillary biliary decompression in external beam radiotherapy
Yoshihiro Ueda, Kenji Ikezawa, Tomohiro Sagawa, Masaru Isono, Shingo Ohira, Masayoshi Miyazaki, Ryoji Takada, Takuo Yamai, Kazuyoshi Ohkawa, Teruki Teshima, Koji Konishi
Physical and Engineering Sciences in Medicine.2024;[Epub] CrossRef - Radial force and wire structure determine the onset of covered self‐expandable metal stent migration in endoscopic ultrasound‐guided hepaticogastrostomy: Measurement of sliding‐resistance force using a porcine model
Takehiko Koga, Hiroshi Yamada, Yusuke Ishida, Naoaki Tsuchiya, Takanori Kitaguchi, Keisuke Matsumoto, Makoto Fukuyama, Norihiro Kojima, Fumihito Hirai
Journal of Hepato-Biliary-Pancreatic Sciences.2024;[Epub] CrossRef - Biliary stents for active materials and surface modification: Recent advances and future perspectives
Yuechuan Li, Kunshan Yuan, Chengchen Deng, Hui Tang, Jinxuan Wang, Xiaozhen Dai, Bing Zhang, Ziru Sun, Guiying Ren, Haijun Zhang, Guixue Wang
Bioactive Materials.2024; 42: 587. CrossRef - Manufacturing, Processing, and Characterization of Self-Expanding Metallic Stents: A Comprehensive Review
Saeedeh Vanaei, Mahdi Hashemi, Atefeh Solouk, Mohsen Asghari Ilani, Omid Amili, Mohamed Samir Hefzy, Yuan Tang, Mohammad Elahinia
Bioengineering.2024; 11(10): 983. CrossRef - Understanding mechanical properties of biliary metal stents for wise stent selection
Seok Jeong
Clinical Endoscopy.2023; 56(5): 592. CrossRef - How to reduce fistula formation after self-expandable metallic stent insertion for treating malignant esophageal stricture?
Kwang Bum Cho
Clinical Endoscopy.2023; 56(6): 735. CrossRef
- Characteristics of four commonly used self-expanding biliary stents: an in vitro study
- 3,554 View
- 228 Download
- 8 Web of Science
- 9 Crossref
- Risk Factors for Prolonged Hospital Stay after Endoscopy
- Toshihiro Nishizawa, Shuntaro Yoshida, Osamu Toyoshima, Tatsuya Matsuno, Masataka Irokawa, Toru Arano, Hirotoshi Ebinuma, Hidekazu Suzuki, Takanori Kanai, Kazuhiko Koike
- Clin Endosc 2021;54(6):851-856. Published online March 16, 2021
- DOI: https://doi.org/10.5946/ce.2020.292
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Abstract
PDFPubReaderePub
- Background
/Aims: The recovery room used after endoscopy has limited capacity, and an efficient flow of the endoscopy unit is desired. We investigated the duration of hospital stay after endoscopy and the risk factors for prolonged hospital stay among outpatients.
Methods
We retrospectively studied consecutive patients who underwent esophagogastroduodenoscopy or colonoscopy at the Toyoshima Endoscopy Clinic. We collected data on age, sex, body weight, midazolam and pethidine dosage, respiratory depression during endoscopy, and duration of hospital stay after endoscopy (scope out to check out). Risk factors for prolonged hospital stay (>100 minutes) were identified using multiple logistic regression analysis.
Results
We enrolled 3,898 patients, including 3,517 (90.2%) patients tested under sedation and 381 (9.8%) patients tested without sedation. Overall, 442 (11.3%) patients had prolonged stay (>100 min). The mean time difference between sedation group and non-sedation group was 44.2 minutes for esophagogastroduodenoscopy and 39.1 minutes for colonoscopy. Age (odds ratio [OR], 1.025; 95% confidence interval [CI], 1.014−1.036), female sex (OR, 1.657; 95% CI, 1.220−2.249), and midazolam dose (OR, 1.019; 95% CI, 1.013−1.026) were independently associated with prolonged hospital stay after esophagogastroduodenoscopy, with similar results for colonoscopy.
Conclusions
Old age, female sex, and midazolam dose were independent risk factors for prolonged hospital stay after endoscopy. -
Citations
Citations to this article as recorded by- Timing of Endoscopic Intervention for Esophageal Food Impaction and Its Impact on Patient Outcomes
Mark S. Obri, Momin Samad, Suhib Alhaj, Ammad Chaudhary, Sheema Rehman, M. Ramzi Almajed, Courtney Rose, Lonni Schultz, Kevin Harris, Suraj Suresh
Digestive Diseases and Sciences.2024;[Epub] CrossRef - Drugs used for sedation in gastrointestinal endoscopy
Jun Kyu Lee
Journal of the Korean Medical Association.2022; 65(11): 735. CrossRef - TXI (Texture and Color Enhancement Imaging) for Serrated Colorectal Lesions
Toshihiro Nishizawa, Osamu Toyoshima, Shuntaro Yoshida, Chie Uekura, Ken Kurokawa, Munkhbayar Munkhjargal, Miho Obata, Tomoharu Yamada, Mitsuhiro Fujishiro, Hirotoshi Ebinuma, Hidekazu Suzuki
Journal of Clinical Medicine.2021; 11(1): 119. CrossRef
- Timing of Endoscopic Intervention for Esophageal Food Impaction and Its Impact on Patient Outcomes
- 3,892 View
- 101 Download
- 3 Web of Science
- 3 Crossref
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