Abstract:Objective To explore the effects of intravenous thrombolysis with human urinary kallindinogenase and alteplase on neurological function and hemorheology in patients with acute cerebral infarction.Methods A total of 126 patients with acute cerebral infarction treated in our hospital from January 2018 to December 2021 were selected and randomly divided into the research group and the control group, with 63 cases in each group. The control group was treated with alteplase for intravenous thrombolysis, and the research group was additionally treated with human urinary kallindinogenase on the basis of alteplase. The patients in both groups were evaluated for hemorheological indexes, neurological function, activities of daily living, clinical efficacy and drug toxicity 14 days after the treatment.Results The differences of whole blood viscosity, plasma viscosity, platelet aggregation rate and hematocrit before and after the treatment were higher in the study group than in the control group (P < 0.05). NIHSS scores of the study group were lower than those of the control group after the treatment (P < 0.05). The proportion of favorable prognosis as evaluated via MRS scores and the differences of ADL and BI before and after the treatment were higher in study group than those in the control group (P < 0.05). The clinical response rate of the study group was higher than that of the control group (P < 0.05). There was no significant difference in the incidence of adverse reactions between the two groups (P > 0.05).Conclusions The combined treatment with human urinary kallindinogenase and alteplase improves hemorheology, the neurological function of patients, and activities of daily living with few safety concerns in patients with acute cerebral infarction.