Safety and Efficacy of Ultra-high-dose, Short-term Thrombolysis with rt-PA for Acute Lower Limb Ischemia

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Abstract

Objectives The evaluation of success and complication rates of ultra high-dose recombinant tissue plasminogen activator (rt-PA) administered over a short time frame in the treatment of acute lower limb ischemia. Methods This was a prospective single-center study. The outcome of treatment in 97 patients with acute limb ischemia (<14 days) with the use of catheter directed rt-PA infusion was evaluated. The mean total dose of rt-PA was 54.1 mg (50-60 mg) and was administered for a mean of 2.51 hours (2-4 hours). Thrombolytic success was defined as 95% thrombolysis of an occluded segment with return of antegrade flow. Thirty-day complication and amputation-free survival rates were calculated. Results Thrombolytic success was achieved in 83.5%. Overall clinical success was 88.7%. The 30-day amputation-free survival rate was 93.8%. Major bleeding complications occurred in 10 patients (10.3%). There were two deaths (2.1%) and four amputations (4.1%). Long-term amputation-free survival was 70%. Conclusions Administration of ultra-high doses of rt-PA over a short time period gives promising results. Such delivery improves patient tolerance by rapid restoration of limb perfusion; however further studies are required to confirm these results. © 2013 European Society for Vascular Surgery. Published by Elsevier Ltd. All rights reserved.

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Falkowski, A., Poncyljusz, W., Samad, R. A., & Mokrzyński, S. (2013). Safety and Efficacy of Ultra-high-dose, Short-term Thrombolysis with rt-PA for Acute Lower Limb Ischemia. European Journal of Vascular and Endovascular Surgery, 46(1), 118–123. https://doi.org/10.1016/j.ejvs.2013.04.016

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