Abstract:Abstract: Objective To explore the effect of Probucol on activated partial thromboplastin time (APTT), fibrinogen and hemorheology in patients with progressive cerebral infarction. Methods Eighty cases with progressive cerebral infarction from January 2014 to January 2015 in our hospital were chosen as research objects. They were randomly divided into study group and control group with 40 cases in each group. The control group was treated with simple routine drugs, the study group had the same treatment plus Probucol. APTT, fibrinogen and hemorheology of the patients were evaluated before and after treatment and compared between the two groups. Results The total effective rate of the study group was significantly higher than that of the control group (P < 0.05). In the study group APTT was prolonged after treatment. APTT on the 30th day after treatment was longer than that on the 15th day after treatment. After treatment, APTT of the study group was significantly longer than that of the control group (P < 0.05). The fibrinogen level of the study group was lower after treatment than before treatment, and the fibrinogen level on the 30th day after treatment was lower than that on the 15th day after treatment. The fibrinogen level after treatment in the study group was significantly lower than that in the control group (P < 0.05). After treatment, the plasma viscosity, whole blood high-shear viscosity and whole blood low-shear viscosity of the study group decreased, which were lower on the 30th day after treatment than on the 15th day after treatment. The plasma viscosity, whole blood high-shear viscosity and whole blood low-shear viscosity of the study group were significantly reduced compared to the control group with statistical difference (P < 0.05). Conclusions The curative effect of Probucol on patients with cerebral infarction is significant. Probucol can significantly prolong APTT and lower fibrinogen level, reduce blood viscosity, whole blood high-shear viscosity and low-shear viscosity, and is worthy of clinical application.