Retrospektivní analýza komplikací asociovaných s kovovými jícnovými stenty zavedenými pod skiaskopickou kontrolou do maligních stenóz jícnu

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Title in English Retrospective analysis of complications associated with metallic esophageal stents implanted under fluoroscopy inside malignant stenoses
Authors

MATKULČÍK Peter ROHAN Tomáš UHER Michal HUSTÝ Jakub DASTYCH Milan ANDRAŠINA Tomáš

Year of publication 2021
Type Article in Periodical
Magazine / Source Česká radiologie
MU Faculty or unit

Faculty of Medicine

Citation
Web http://www.cesradiol.cz/detail.php?stat=758
Keywords self expandable metal stent; esophageal cancer; complications; survival analysis
Description Aim: To identify risk factors, that can possibly allow to predict late complications associated with metallic stents in malignant esophageal stenoses. Method: Retrospective analysis of patients with implanted metallic stent in malignant esophageal stenoses in years 2005-2019. Frequency and type of complications (dislocation, stent obstruction, fistulae) were observed in dependence on type (Ella, Wallflex, Boubella, Egis) length of stent, implanting operator, age of patient, survival of patient, adjuvant chemotherapy or radiotherapy, malignant stenosis character, extent of prestenotic dilatation. Radiologic parameters were evaluated from contrast swallow before and after stent implantation, remaining information were gathered from the hospital information system. From the statistical methods, the Mann-Whitney test and the t-test were used for the continuous variables, the Chi-squared test for the categorical variables and the Kaplan-Meier and the log-rank test for the survival analysis. Results: In years 2005-2019, there were 115 metal stents implanted (median 1 per patient). In proximal esophagus, there were 37 stents (32.2%), 78 (67.8%) in distal esophagus. In 25 (21.7%) stents, complications were observed. Median survival rate from stent implantation was 132 days. Significantly higher risk of dislocation was observed in shorter stents (96 ± 16 vs. 116 ± 24 mm; p = 0.008). Other parameters were not significantly associated with the frequency of complications. Conclusion: Stent length was the only observed statistically significant factor in complications rate of metallic stents implanted in malignant esophageal stenoses, where in shorter stents, the risk of dislocation was significantly higher than in longer stents.
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