Abstract
Background
For elderly patients who are about to undergo surgery, research on the effects of preoperative medication on postoperative outcomes is rare, especially preoperative discontinuation-requiring medication (PDRM) which needed to be discontinued because of its increased risk of postoperative complications.
Aim
To investigate whether preoperative medication (PDRM and polypharmacy) is associated with postoperative length of hospital stay (LOS) in elderly patients undergoing hip fracture surgery.
Methods
Patients aged ≥ 65 who were scheduled for hip (limited to femoral tuberosity) fracture surgery were included. Baseline characteristics, preoperative medication and postoperative LOS were collected from the electronic medical record. The primary outcome was postoperative LOS.
Results
A total of 369 hip fracture patients were included. There were 188 and 122 patients exposed to PDRM and polypharmacy, respectively. Multivariate analysis models were constructed using significant factors for prolonged postoperative hospital stay from univariate analysis: Model I (body mass index (BMI), Charlson comorbidity index (CCI) ≥ 7, creatinine clearance rate (Ccr) < 60 and PDRM) and Model II (BMI, Ccr ≥ 7, Ccr < 60 and polypharmacy). CCI was the most significant factor. Its adjusted odds ratio was as large as 2.7 and attributable risk was 63%. In preoperative medication use, both polypharmacy and PDRM showed significant association with postoperative LOS.
Conclusion
The present study supported the impact of PDRM on postoperative LOS in geriatric hip fracture patients. The results added a further aspect to preoperative medication optimization in elderly patients undergoing hip fracture surgery.
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Acknowledgements
We would like to thank Dr. Tianlong Wang (M.D., Ph.D., Department of Anesthesia, Xuanwu Hospital, Capital Medical University) for his contributions to the study design. We would also like to thank Dr. Kun Yang (Evidence-based medicine center, Xuanwu Hospital, Capital Medical University) for his contributions to statistical analysis. Finally, we would like to thank Dr. Chao Kong (M.D., Department of Orthopedic, Xuanwu Hospital, Capital Medical University) for his assistance with the data collection process.
Funding
This research was supported by Beijing Municipal commission of Health and Family Planning (No. PXM2017_026283_000002). The content is solely the responsibility of the authors and does not necessarily represent the official views of Beijing Municipal commission of Health and Family Planning. It had any role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; or preparation, review, or approval of the manuscript.
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JS: study design, data collection, statistical analysis and manuscript writing. YY: data collection and statistical analysis. CW: study design and statistical analysis. YC: study design. SY: study design.
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All authors declare that they have no competing interests. This study was approved by the Ethical review committee of Beijing Xuanwu Hospital, Capital Medical University. This work was performed at Beijing Xuanwu Hospital of Capital Medical University and National Clinical Research Center for Geriatric Diseases.
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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee at which the studies were conducted (the ethics committee of Xuanwu Hospital of Capital Medical University Approval 临研审 No. 086 (2018)) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
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This study was approved by the ethics committee of Xuanwu Hospital of Capital Medical University Approval (临研审No. 086【2018】). IRB waived the requirement for informed consent from the patients.
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This study is a retrospective observational study using existing data from medical records. IRB waived the requirement for informed consent from the patients according to the ethical guidelines for medical and health research involving human subjects in China.
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Shen, J., Yu, Y., Wang, C. et al. Association of preoperative medication with postoperative length of stay in elderly patients undergoing hip fracture surgery. Aging Clin Exp Res 33, 641–649 (2021). https://doi.org/10.1007/s40520-020-01567-3
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DOI: https://doi.org/10.1007/s40520-020-01567-3