Efficacy of Catheter-directed Thrombolysis on Post-burn Deep Venous Thrombosis of Lower Extremity

OBJECTIVE: To observe the clinical effect of catheter-directed thrombolysis on deep venous thrombosis (DVT) of lower extremity after burn. STUDY DESIGN: An observational study. PLACE AND DURATION OF STUDY: Invasive Technology Department, Binzhou City Center Hospital, China, from January 2015 to November 2017. METHODOLOGY: Eighty-two patients with lower extremity DVT after burn were selected as the study object. All patients received catheter-directed thrombolysis and the clinical efficacy was evaluated. The blood coagulation parameters including plasma prothrombin time (PT), activated partial thromboplastin time (APTT), thrombin time (TT), and fibrin original (FIB) and inflammatory response factors including interleukin (IL)-6, C-reactive protein (CRP) and D-dimer were compared before and after treatment. RESULTS: All interventional surgeries that the patients received were successful. The effective rate of catheter-directed thrombolysis was 98.78% (81 cases). After 6 days of treatment, compared with that before treatment, serum PT, APTT and TT were up-regulated (all p <0.001) and FIB was down-regulated (p <0.001). After 6 days of treatment, the levels of serum IL-6, CRP and D-dimer were lower than those before treatment (all p <0.001). No visceral hemorrhage occurred after 1 week of treatment. CONCLUSION: Catheter-directed thrombolysis of patients with lower extremity DVT after burn produces a good effect. It can improve the coagulation function and reduce the level of inflammatory response factors in patients with high safety.