Αρχειοθήκη ιστολογίου

Τρίτη 15 Αυγούστου 2017

Outcomes of Pharmacomechanical Catheter-directed Thrombolysis for Acute and Subacute Inferior Vena Cava Thrombosis: A Retrospective Evaluation in a Single Institution

Publication date: Available online 8 August 2017
Source:European Journal of Vascular and Endovascular Surgery
Author(s): K. Ye, J. Qin, M. Yin, X. Liu, X. Lu
Objective/BackgroundThe objective was to assess the mid-term results of pharmacomechanical catheter-directed thrombolysis (PCDT) for symptomatic acute and subacute inferior vena cava (IVC) thrombosis; the risk factors of early thrombosis recurrence and iliocaval patency were also evaluated.MethodsFrom January 2010 to December 2015, 54 patients (33 men; mean age 47.1 years) with symptomatic acute and subacute IVC thrombosis were treated with PCDT. Primary technical success (clot lysis ≥ 50% after PCDT), stent-assisted technical success (residual stenosis < 30% after stenting), clinical success (freedom from thrombosis recurrence within 30 days), complications, frequency of post-thrombotic syndrome (PTS; Villalta score ≥ 5), and iliocaval patency were recorded at follow-up evaluation. A multivariate regression model was used to determine predictors of early thrombosis reoccurrence and iliocaval patency.ResultsThe primary technical success and the stent-assisted technical success were 63% (n = 34/54) and 100% (n = 54/54) respectively. There were 11 patients (20%) with immediate recurrent thrombosis requiring repeat PCDT. Minor bleeding complications occurred in seven patients, and one patient with major bleeding needed a blood transfusion. The occurrence of PTS at a mean of 26 months (range 1–60 months) was 13% (7/54). The 3-year primary and secondary iliocaval patency was 63% and 81%, respectively. On multivariate analysis, active malignancy was predictive of immediate IVC thrombosis recurrence (hazard ratio [HR] 5.8, 95% confidence interval [CI] 1.7–19.8; p = .01), whereas the pre-existing filter played a protective role against iliocaval re-occlusion (HR 0.3, 95% CI 0.1–0.8; p = .01).ConclusionsPCDT is safe and effective in managing symptomatic acute and subacute IVC thrombosis. Active malignancy is predictor of thrombosis re-occurrence, whereas the presence of a filter is associated with a higher rate of iliocaval patency at mid-term follow-up.



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