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  • Title: Outcome after preoperative or intraoperative use of intra-arterial urokinase thrombolysis for acute popliteal artery thrombosis and leg ischemia.
    Author: Gabrielli R, Rosati MS, Carra A, Vitale S, Siani A.
    Journal: Thorac Cardiovasc Surg; 2015 Mar; 63(2):164-7. PubMed ID: 24911902.
    Abstract:
    OBJECTIVES: To evaluate the outcome of acute popliteal artery aneurysm (PAA) thrombosis and leg ischemia after preoperative or intraoperative use of intra-arterial urokinase thrombolysis. MATERIALS AND METHODS: From 2000 to 2009, 86 patients with acute leg ischemia (Rutherford grade IB to IIA) from PAA thrombosis were treated by immediate surgery including intraoperative thrombolysis (group A: 47 cases) or preoperative thrombolysis (group B: 39 cases) followed by acute (<24 hours) or elective surgery. Chi-square tests for categorical data and time to event provided two-sided p values with a level of significance at 0.05 and all confidence intervals (CIs) at the 95% level. RESULTS: The mean follow-up was 45 months. The 2-year primary patency was 61.7% (29/47) for group A and 43.6% (17/39) for group B (hazard ratio [HR] 1.85; 95% CI: 0.96 to 3.54; p = 0.06). The 2-year secondary patency was 70.2% (33/47) for group A and 53% (21/39) for group B (HR 1.86; 95% CI: 0.91 to 3.81; p = 0.08). One-month amputation rate was 18% in group A and 29% in group B (p < 0.001), and 12-month amputation rate was 19% (9/47) in group A and 44% (17/39) in B (p = 0.05). In group A, 28% of patients required fasciotomy and in group B, 59% (p < 0.05). Effective thrombolysis allowed 82% limb salvage patency in group B. No systemic or locoregional complications during thrombolysis were recorded, but four cases of worsening ischemia were recorded. CONCLUSION: Our results suggest that the immediate surgery with intraoperative thrombolysis improved the outcome of patients with acute leg ischemia due to PAA thrombosis in terms of limb salvage.
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