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To evaluate the safety and efficacy of pharmacomechanical thrombolysis (PMT) performed for patients with relative contraindications.From June 2014 to December 2016, 112 patients with acute or subacute proximal deep vein thrombosis (DVT) were enrolled in this study. 60 patients (including 27 acute DVT patients and 33 subacute DVT patients) were treated with catheter-directed thrombolysis (CDT), and 52 patients with relative contraindications (including 25 acute DVT patients and 27 subacute DVT patients) with PMT. Assessment of venous recanalization was conducted using venography the time Inferior vena cava filter is removed, and complications were used to compare safety and efficacy between the groups.The outcomes of acute DVT patients no matter which kind of therapy performed, CDT or PMT, were significant better than subacute DVT patients (PCDT = .04 and PPMT = .01). However, there was no significant difference between CDT acute group and PMT acute group or between CDT subacute group and PMT subacute group (Pacute = .80 and Psubacute = .84). For complications of all patients, there was no mortality and major bleeding occurred.PMT could be a safe and effective management for DVT patients with relative contraindications, and the acute DVT may achieve better outcomes when they receive CDT or PMT.