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Self-Expandable Metal Stent Use to Palliate Malignant Esophagorespiratory Fistulas in 88 Patients.
PURPOSE: To identify predictors associated with clinical outcomes (initial clinical failure, stent patency, and survival) after self-expandable metal stent (SEMS) placement for malignant esophagorespiratory fistulas (ERFs).
MATERIALS AND METHODS: Using logistic and Cox regression analyses, this study reviewed 88 patients (mean age 59.4 y ± 8.4; 84 men [95.5%] and 4 women [4.5%]) who underwent fluoroscopic SEMS placement for palliating malignant ERF from January 2000 to December 2016.
RESULTS: Technical success was achieved in all patients. Initial clinical success was achieved in 78.4% (69/88; 95% confidence interval [CI], 68.7%-85.7%). Among the 69 patients in whom initial clinical success was achieved, aspiration symptoms recurred in 37.7% (26/69; 95% CI, 27.2%-49.5%). Overall major complication rate was 25.0% (22/88; 95% CI, 17.1%-35.0%). Cumulative stent patency and cumulative survival rates at 1, 3, 6, and 12 months were 72.8%, 38.9%, 32.4%, and 21.6% and 81.4%, 51.9%, 30.5%, and 13.3%, respectively. Stricture of the upper esophagus was an independent predictor of initial clinical failure (odds ratio, 3.760; 95% CI, 1.207-11.811) and shorter stent patency (hazard ratio [HR], 2.036; 95% CI, 1.170-3.544). Initial clinical failure was an independent predictor of shorter survival (HR, 2.902; 95% CI, 1.587-5.305).
CONCLUSIONS: SEMS placement offers sufficient short-term relief despite considerable major complications. Stricture of the upper esophagus is an independent predictor of initial clinical failure and shorter stent patency. Initial clinical failure is an independent predictor of shorter survival.
MATERIALS AND METHODS: Using logistic and Cox regression analyses, this study reviewed 88 patients (mean age 59.4 y ± 8.4; 84 men [95.5%] and 4 women [4.5%]) who underwent fluoroscopic SEMS placement for palliating malignant ERF from January 2000 to December 2016.
RESULTS: Technical success was achieved in all patients. Initial clinical success was achieved in 78.4% (69/88; 95% confidence interval [CI], 68.7%-85.7%). Among the 69 patients in whom initial clinical success was achieved, aspiration symptoms recurred in 37.7% (26/69; 95% CI, 27.2%-49.5%). Overall major complication rate was 25.0% (22/88; 95% CI, 17.1%-35.0%). Cumulative stent patency and cumulative survival rates at 1, 3, 6, and 12 months were 72.8%, 38.9%, 32.4%, and 21.6% and 81.4%, 51.9%, 30.5%, and 13.3%, respectively. Stricture of the upper esophagus was an independent predictor of initial clinical failure (odds ratio, 3.760; 95% CI, 1.207-11.811) and shorter stent patency (hazard ratio [HR], 2.036; 95% CI, 1.170-3.544). Initial clinical failure was an independent predictor of shorter survival (HR, 2.902; 95% CI, 1.587-5.305).
CONCLUSIONS: SEMS placement offers sufficient short-term relief despite considerable major complications. Stricture of the upper esophagus is an independent predictor of initial clinical failure and shorter stent patency. Initial clinical failure is an independent predictor of shorter survival.
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