• Kamlesh U Kukreja, Matthew P Lungren, Manish N Patel, Neil D Johnson, John M Racadio, Christopher Dandoy, and Cristina Tarango.
• Department of Radiology, Baylor College of Medicine & Texas Children's Hospital, 6701 Fannin St, Suite 470, Houston, TX 77030. Electronic address: drkamleshkukreja@yahoo.com.
• J Vasc Interv Radiol. 2014 Aug 1; 25 (8): 1158-64.

PurposeTo evaluate the technical feasibility and safety of percutaneous endovascular thrombolysis for extremity deep venous thrombosis (DVT) in children < 24 months old.Materials And MethodsA retrospective chart review of a clinical and imaging database was performed for pediatric patients who underwent endovascular therapy for DVT between January 2010 and July 2013. Indications, techniques, technical and clinical success, and complications were reviewed. Techniques for thrombolysis included catheter-directed therapy (CDT) using alteplase infusion via a multi-side hole catheter, mechanical thrombectomy, and angioplasty. Short-term outcomes were assessed using surgical and imaging follow-up examinations for patency of the targeted vessel. Patients included 11 children (mean age, 9 mo; range, 3 wk-23 mo) who consecutively underwent endovascular thrombolysis for upper extremity (n = 6) or lower extremity (n = 5) DVT. The most common indication was preservation of venous access for future cardiac surgery or medical therapy.ResultsThe most common risk factor was the presence of a central venous catheter (10 of 11 patients). All patients with upper extremity DVT had congenital heart disease. CDT and angioplasty were performed in all patients. Venous patency was established in all patients. A grade III (95%-100%) thrombolysis response was achieved in seven patients, and a grade II (50%-95%) thrombolysis response was achieved in four patients. A major complication of pulmonary embolism occurred in one patient with upper extremity thrombolysis and was managed by intravenous systemic alteplase and heparin. No recurrence of thrombosis was found on average follow-up of 11.8 months (range, 1-41 mo).ConclusionsPercutaneous endovascular thrombolysis for extremity DVT is safe and technically feasible in children < 24 months old.Copyright © 2014 SIR. Published by Elsevier Inc. All rights reserved.

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