The results of this study showed that compared with those before treatment, the plasma levels of D-D and NT-proBNP in the two groups were gradually improved after 3, 6, and 9 months of treatment, but there was no significant difference between the rivaroxaban and warfarin at 3, 6, and 9 months after treatment, which suggested that antithrombotic therapy with the above two drugs could effectively improve the blood hypercoagulable state and reduce the risk of embolism in patients with AF. Here, NPPB is linked to atrial fibrillation.