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Published in: American Journal of Cardiovascular Drugs 1/2024

24-12-2023 | Rivaroxaban | Original Research Article

Rivaroxaban Plasma Concentration and Clinical Outcomes on Older Patients with Non-valvular Atrial Fibrillation and Pulmonary Infection

Authors: Yan Yu, Haobin Li, Jing Liu, Qing Liang, Juan Xie, Guangchun Sun

Published in: American Journal of Cardiovascular Drugs | Issue 1/2024

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Abstract

Introduction

Infection may induce thrombotic and hemorrhagic events; however, it is currently unclear whether the inflammatory response affects the coagulation function and the clinical efficacy and safety of rivaroxaban in older patients with non-valvular atrial fibrillation (NVAF).

Objective

This project aimed to assess the effectiveness and safety of the non-vitamin K antagonist oral anticoagulant rivaroxaban in older patients with NVAF complicated by infection, and to provide a basis for possible drug dose adjustment.

Methods

A total of 152 NVAF patients aged ≥ 65 years admitted to the Fifth People’s Hospital of Shanghai from June 2020 to May 2022 were included in this prospective, observational study. The changes in steady-state plasma concentration of rivaroxaban and FXa inhibition rate were compared between patients with and without infection, and the impact on the occurrence of infection, thrombotic events, and bleeding events was compared through 1-year follow-up.

Results

Our results showed that patients in the infection group had abnormal inflammation markers, as well as an increased occurrence of bleeding and thrombotic events during hospitalization and follow-up. The high incidence of bleeding events in patients was closely related to the occurrence of infection, lymphocyte reduction, and increased neutrophil-lymphocyte ratio. The increase in thrombotic events was related to a decrease in rivaroxaban plasma concentration. Bleeding events in patients taking anticoagulant drugs are not necessarily due to drug accumulation.

Conclusions

Timely control of infection, assessment of bleeding and thrombotic risks, and selection of appropriate anticoagulation treatment strategies should be made in older NVAF patients who develop pulmonary infection.

Clinical Trials Registration

Chinese Clinical Trial Registry Number ChiCTR2000033144.
Appendix
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Metadata
Title
Rivaroxaban Plasma Concentration and Clinical Outcomes on Older Patients with Non-valvular Atrial Fibrillation and Pulmonary Infection
Authors
Yan Yu
Haobin Li
Jing Liu
Qing Liang
Juan Xie
Guangchun Sun
Publication date
24-12-2023
Publisher
Springer International Publishing
Published in
American Journal of Cardiovascular Drugs / Issue 1/2024
Print ISSN: 1175-3277
Electronic ISSN: 1179-187X
DOI
https://doi.org/10.1007/s40256-023-00622-4

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