Objective To observe the therapeutic effects of early intravenous thrombolysis with recombinant tissue-type plasminogen activator in acute cerebral infarction within 4.5 h.Methods We selected 125 cases of patients with acute cerebral infarction within 4.5 honset from June 2015 to December 2016.Patients were divided into thrombolytic therapy group(65 cases)and control group(60 cases).Thrombolytic therapy group was treated with rt-PA intravenous thrombolysis and conventional treatment,the control group was tr...