Abstract: Objective To analyze the efficacy of Yiqi Huoxue Decoction in the treatment of pregnancy-related uterine arteriovenous malformations (UAVM), and to explore the application value of ultrasonography in conservative treatment of pregnancy-related UAVM. Methods A total of 78 patients diagnosed with pregnancy-related UAVM and conforming to conservative treatment principles from January 2019 to June 2022 were collected by ultrasound examination and clinical manifestations. They were randomly divided into the treatment group (31 cases) and the control group (47 cases) by coin throwing method. The control group was treated with conventional therapy, and the treatment group was treated with Yiqi Huoxue Decoction on the basis of conventional treatment. The longest treatment period of both groups was 8 weeks. The differences in cure rate, improvement of clinical symptoms and changes of ultrasonic indexes between the two groups were observed. Results There was no significant difference in the cure rate between the treatment group and the control group (P> 0.05), but the duration of complete disappearance of clinical symptoms in the treatment group was significantly lower than that in the control group, and the duration of disappearance of malformed blood vessels in the uterus in the treatment group was also significantly lower than that in the control group through ultrasonic examination, both of which had significant statistical significance (P< 0.05). Conclusion Yiqi Huoxue Decoction is effective in the treatment of pregnancy related UAVM, and ultrasound examination is of great value in its diagnosis, treatment options and monitoring of treatment effects.

Key words: Yiqi Huoxue decoction, pregnancy-related uterine arteriovenous malformation, ultrasonography, curative effect