Biliary metal stent patency rate: long term national analysis

MATKULČÍK, Peter, Michal UHER, Tomáš ROHAN, Matej STRAKA and Tomáš ANDRAŠINA. Biliary metal stent patency rate: long term national analysis. In CIRSE 2021. 2021.

Basic information

• Original name: Biliary metal stent patency rate: long term national analysis
• Authors: MATKULČÍK, Peter (703 Slovakia, guarantor, belonging to the institution), Michal UHER (203 Czech Republic, belonging to the institution), Tomáš ROHAN (203 Czech Republic, belonging to the institution), Matej STRAKA (703 Slovakia, belonging to the institution) and Tomáš ANDRAŠINA (703 Slovakia, belonging to the institution).
• Edition: CIRSE 2021, 2021.

Other information

• Original language: English
• Type of outcome: Conference abstract
• Field of Study: 30224 Radiology, nuclear medicine and medical imaging
• Country of publisher: Germany
• Confidentiality degree: is not subject to a state or trade secret
• WWW: URL
• RIV identification code: RIV/00216224:14110/21:00120212
• Organization unit: Faculty of Medicine
• Keywords in English: biliary tract; metal stent; malignancy; survival analysis; cholangiocarcinoma

Abstract

urpose: To evaluate biliary metal stent patency rate in biliary malignancies related to the frequency of biliary metal stent insertion in the hospital. Materials and Methods: All reported patients with biliary tract malignancy treated with metal stent insertion in Czechia in 2010-2018 were enrolled in this retrospective analysis. According to frequency of metal stent insertion hospitals in Czechia were divided into 3 groups (over 54; 20-54; less than 20 metal stent implantations). Except metal stent patency rate (log rank test), possible risk factors like age, gender, anatomical location of biliary cancer and its stage were analyzed (uni and multivariate analysis, Cox-regression). Results: 562 patients with median biliary metal stent patency rate of 4.2 months (95%CI 3.5-4.9) while 106 patients underwent metal stent recanalization and 456 patients died without recanalization. Metal stent patency rate was signifcantly better in hospitals with 55 and more implanted stents compared to hospitals with 20-54 and less than 20 implanted stents during the study period (median patency 5.8 vs 3.2 vs 3.7 months, p=0.004 and p=0.012). Worse patency rate was further observed in gall bladder cancer (HR 1.431(95%CI 1.152-1.778), p=0.001) and advanced stages of biliary malignancy (HR in TNM stage 2,3 and 4 were 1.447(95%CI 1.044-2.005), 1.257(95%CI 0.885-1.784), and 1.914(95%CI 1.410-2.598)). Conclusion: Reported biliary metal stent patency rate in biliary cancer was signifcantly better in hospitals with higher frequency of metal stent implantations.

Links

• MUNI/A/1342/2020, interní kód MU: Name: Význam radiologických intervencí a pokročilých zobrazovacích metod v diagnostice a léčbě onkologických pacientů II

Investor: Masaryk University

• NU21-08-00561, research and development project: Name: Využití ireverzibilní elektroporace a vysokofrekvenční ireverzibilní elektroporace k léčbě okluzí metalických stentů

Investor: Ministry of Health of the CR, Subprogram 1 - standard