Abstract: Objective: To search evidence-based nursing practices relevant to Bakri balloons in prevention and management of postpartum hemorrhage caused by placental previa at present and their effectiveness, and apply those practices to clinical nursing. Methods: Evidence-based methods were adopted to figure out the best evidence, which was then combined with the medical team members' clinical experience and patients' requirement to make review standards and clinical nursing norms of Bakri balloons and risk warning processes of postpartum hemorrhage. All medical staff were trained about the best practice as well as the above mentioned standards, norms and processes to ensure their application to Bakri balloons usage management. Indicators collected before and after the application of Bakri balloons, including the success rate of hemostasis, incidence of relevant complications (such as genital tract infection, balloons knockout and displacement, and hemorrhage after extubation), hospital stay and hemorrhage within 24 hours were compared and analyzed. Results: The success rate of hemostasis increased from 84.0% to 100.0% since the implementation of the evidence-based practice, with the incidence of complications decreased from 24.0% to 4.0%, which was significantly lower than before (P<0.05). Meanwhile, patients's hospital stays and the amount of hemorrhage within 24 hours both decreased after the implementation of the evidence-based practice with the differences being statistically significant (P<0.05). Conclusion: Bakri balloons were significantly useful in controlling hemorrhage caused by placenta previa, and application of evidence-based practices to women after their operations can obviously improve the success rate of hemostasis, reduce the incidence of complications and hemorrhage within 24 hours, and shorten their hospital stays.

Key words: postpartum hemorrhage; Bakri balloon; evidence-based nursing; effect