{"title":"Impact of self-expandable metal stent deployment site on stent dysfunction during EUS-guided hepaticogastrostomy.","authors":"Takeshi Ogura, Saori Ueno, Atsushi Okuda, Nobu Nishioka, Jun Sakamoto, Masanori Yamada, Masahiro Yamamura, Yuki Uba, Mitsuki Tomita, Nobuhiro Hattori, Junichi Nakamura, Kimi Bessho, Hiroki Nishikawa","doi":"10.1097/eus.0000000000000100","DOIUrl":null,"url":null,"abstract":"<p><strong>Background and objectives: </strong>Hyperplasia at the distal side of an EUS-guided hepaticogastrostomy (HGS) stent is one of the most frequent causes of stent dysfunction. However, risk factors for hyperplasia during EUS-HGS remain unclear. The aim of the present study was to determine the most appropriate stent site during EUS-HGS to obtain prolonged stent patency.</p><p><strong>Method: </strong>This study included 100 consecutive patients who underwent successful EUS-HGS using a partially covered, self-expandable, metal stent (PCSEMS) between January 2017 and September 2022. The patients were divided into 2 groups according to the distal site of the PCSEMS at the intrahepatic bile duct, the peripheral side group and the central side group.</p><p><strong>Results: </strong>There were 30 patients in the peripheral side group and 70 in the central side group. The diameter of the intrahepatic bile duct at the PCSEMS deployment site was significantly greater in the central side group (mean 7.90 mm) than in the peripheral side group (mean 4.25 mm; <i>P</i> < 0.05). Stent patency was significantly longer in the central side group than in the peripheral side group (median, 60 days <i>vs.</i> 144 days, <i>P</i> = 0.011), although overall survival was not significantly different. Hyperplasia was significantly more frequent in the peripheral side group. On multivariate analysis, the site of the PCSEMS (peripheral) was the only risk factor for stent dysfunction.</p><p><strong>Conclusions: </strong>In conclusion, the distal site of the PCSEMS deployed at the hepatic hilar site from the confluence between B2 and B3 might play a role in obtaining longer stent patency.</p>","PeriodicalId":11577,"journal":{"name":"Endoscopic Ultrasound","volume":"14 1","pages":"26-32"},"PeriodicalIF":4.4000,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11939943/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Endoscopic Ultrasound","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1097/eus.0000000000000100","RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/2/27 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"GASTROENTEROLOGY & HEPATOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Background and objectives: Hyperplasia at the distal side of an EUS-guided hepaticogastrostomy (HGS) stent is one of the most frequent causes of stent dysfunction. However, risk factors for hyperplasia during EUS-HGS remain unclear. The aim of the present study was to determine the most appropriate stent site during EUS-HGS to obtain prolonged stent patency.
Method: This study included 100 consecutive patients who underwent successful EUS-HGS using a partially covered, self-expandable, metal stent (PCSEMS) between January 2017 and September 2022. The patients were divided into 2 groups according to the distal site of the PCSEMS at the intrahepatic bile duct, the peripheral side group and the central side group.
Results: There were 30 patients in the peripheral side group and 70 in the central side group. The diameter of the intrahepatic bile duct at the PCSEMS deployment site was significantly greater in the central side group (mean 7.90 mm) than in the peripheral side group (mean 4.25 mm; P < 0.05). Stent patency was significantly longer in the central side group than in the peripheral side group (median, 60 days vs. 144 days, P = 0.011), although overall survival was not significantly different. Hyperplasia was significantly more frequent in the peripheral side group. On multivariate analysis, the site of the PCSEMS (peripheral) was the only risk factor for stent dysfunction.
Conclusions: In conclusion, the distal site of the PCSEMS deployed at the hepatic hilar site from the confluence between B2 and B3 might play a role in obtaining longer stent patency.
期刊介绍:
Endoscopic Ultrasound, a publication of Euro-EUS Scientific Committee, Asia-Pacific EUS Task Force and Latin American Chapter of EUS, is a peer-reviewed online journal with Quarterly print on demand compilation of issues published. The journal’s full text is available online at http://www.eusjournal.com. The journal allows free access (Open Access) to its contents and permits authors to self-archive final accepted version of the articles on any OAI-compliant institutional / subject-based repository. The journal does not charge for submission, processing or publication of manuscripts and even for color reproduction of photographs.