Vascular stenting for palliation of superior vena cava obstruction in non-small-cell lung cancer patients: A future 'standard' procedure?

Background: Stenting is a relatively new option in the management of superior vena cava obstruction (SVCO), but available data often concern non-malignant and/or various malignant diseases. Objective: The aim of this study was to assess the efficacy of vascular stenting as a first-choice treatment in SVCO in the exclusive setting of NSCLC. Patients and Methods: Retrospective study of NSCLC patients with SVCO treated in the past year. Demographic data, disease characteristics, etiologic and palliative treatment (use of vascular stenting) were recorded as well as treatment outcome and survival. Results: 17 patients were recruited. Eight had vascular stenting while 9 did not. Except for stenting, there was no difference between the two groups (median age 54 years; 80% men; 53% stage IIIB and 47% stage IV). Stenting (median length 60 mm) achieved complete resolution of SVCO more frequently (75 vs. 25%, p = 0.05) and faster (2 vs. 21 days, p = 0.002) without immediate or delayed complication. All patients with stents received anticoagulation therapy. Relapse rate after complete response (33 g, 50%, p = 0.6) was lower and time to relapse (6.5 g, 2 months) was longer for patients undergoing stenting, without reaching statistical significance. Median overall survival was not statistically different (8 and 5 months, p = 0.06). Conclusions: This study demonstrated the effectiveness of vascular stenting for SVCO in NSCLC patients. The high response rate, quick effect and safety of vascular stenting make this palliative treatment a candidate as a potential standard procedure. The results, however, must be confirmed in a prospective randomized trial including quality of life assessment.