Combined pharmacomechanical thrombectomy with selective catheter-directed thrombolysis in patients with acute proximal deep vein thrombosis.

Abstract

Background The aim of this study was to evaluate the characteristics and the outcomes of combined percutaneous pharmacomechanical thrombectomy with selective catheter-directed thrombolysis for acute iliofemoral deep vein thrombosis. Methods Between March 2018 and February 2020, a total of 37 patients (21 males, 16 females; mean age: 55±13.8 years; range, 21 to 79 years) with symptomatic acute iliofemoral vein thrombosis who underwent combined percutaneous pharmacomechanical thrombectomy and catheter-directed thrombolysis were retrospectively analyzed. All patients received a three-step therapy: (i) insertion of a temporary inferior vena cava filter, (ii) percutaneous pharmacomechanical thrombectomy via rotational mechanical thrombectomy device with an adjuvant 0.15 mg/kg recombinant tissue-type plasminogen activator alteplase, and (iii) catheter-directed thrombolysis with continuous 1 mg/h tissue-type plasminogen activator alteplase. Data including demographic characteristics of the patients, bleeding complications, technical success, and adjuvant angioplasty rates were analyzed. The Kaplan-Meier analysis was used to evaluate freedom from re-thrombosis at 3, 6, and 12 months of follow-up was calculated. Results The majority of the patients had left-sided (n=22, 59.4%) proximal deep vein thrombosis. Successful insertion of the inferior vena cava filter was achieved in 97.2% (n=36) of patients. The technical success rate was 89.1% (n=33). Adjuvant venous angioplasty was performed in four patients (10.8%) and no venous stents were used. No major bleeding was occurred, while minor bleeding was observed mostly in the form of hematuria (n=12, 32.4%). No mortality was observed. The 3, 6, and 12-month freedom from re-thrombosis rates were 96.3%, 92.6%, and 86.0%, respectively. Conclusion Combined percutaneous pharmacomechanical thrombectomy and catheter-directed thrombolysis seems to be an effective and safe treatment of the iliofemoral acute deep vein thrombosis with acceptable minor bleeding complications post-interventionally.