Retrospective analysis of complications associated with metallic esophageal stents implanted under fluoroscopy inside malignant stenoses

MATKULČÍK, Peter, Tomáš ROHAN, Michal UHER, Tomáš ANDRAŠINA and Matej STRAKA. Retrospective analysis of complications associated with metallic esophageal stents implanted under fluoroscopy inside malignant stenoses. In CIRSE 2022. 2022. Available from: https://dx.doi.org/10.1007/s00270-022-03246-4.

Basic information

• Original name: Retrospective analysis of complications associated with metallic esophageal stents implanted under fluoroscopy inside malignant stenoses
• Authors: MATKULČÍK, Peter (703 Slovakia, guarantor, belonging to the institution), Tomáš ROHAN (203 Czech Republic, belonging to the institution), Michal UHER (203 Czech Republic), Tomáš ANDRAŠINA (703 Slovakia, belonging to the institution) and Matej STRAKA (703 Slovakia, belonging to the institution).
• Edition: CIRSE 2022, 2022.

Other information

• Original language: English
• Type of outcome: Conference abstract
• Field of Study: 30224 Radiology, nuclear medicine and medical imaging
• Country of publisher: Spain
• Confidentiality degree: is not subject to a state or trade secret
• WWW: URL
• RIV identification code: RIV/00216224:14110/22:00129690
• Organization unit: Faculty of Medicine
• Doi: http://dx.doi.org/10.1007/s00270-022-03246-4
• Keywords in English: esophageal carcinoma; metal stent; complications; retrospective analysis

Abstract

Purpose: To identify risk factors that could potentially predict late complications associated with metallic stents in malignant esophageal stenosis. Material and methods: Retrospective analysis of patients with metallic stent implantation for malignant esophageal stenosis between 2005 and 2019. The incidence and type of complications (stent dislodgement, stent obstruction, fistula) were investigated according to the type (Ella, Wallflex, Boubella, Egis), stent length, implanting surgeon, patient age, patient survival, adjuvant chemotherapy or radiotherapy, characteristics of the malignant stenosis (length, width, contour), and extent of prestenotic dilatation. Radiological parameters were evaluated from fluoroscopy of the esophagus before and after stent implantation; other information was obtained from the hospital information system. Among statistical methods, Mann-Whitney test and t-test were used for continuous variables, Chi-squared test for categorical variables, and Kaplan-Meier and log-rank test for survival analysis. Results: The study included 115 esophageal metallic stents in 96 consecutive patients. There were 37 stents in the proximal esophagus (32.2%) and 78 stents in the distal esophagus (67.8%). Complications were observed in 25 (21.7%) stents. Median survival from stent implantation was 132 days. A significantly higher risk of stent dislocation was observed with shorter stents (96±16 vs 116±24 mm; p=0.008). Other parameters were not significantly associated with complication rates. Conclusion: Stent length was the only observed statistically significant factor in the complication rate of metallic stents implanted in malignant esophageal stenosis, with shorter stents having a significantly higher risk of dislocation than longer stents.

Links

• MUNI/A/1388/2021, interní kód MU: Name: Význam radiologických intervencí a pokročilých zobrazovacích metod v diagnostice a léčbě pacientů s maligním onemocněním

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