Risk Factors of Unplanned Readmission after Anterior Cervical Discectomy and Fusion: A Systematic Review and Meta-Analysis

다국어 초록 (Multilingual Abstract)

Purpose: With an increasing number of anterior cervical discectomy and fusion (ACDF) being conducted for degenerative cervi-cal disc disease, there is a rising interest in the related quality of management and healthcare costs. Unplanned readmission afterACDF affects both the quality of management and medical expenses. This meta-analysis was performed to evaluate the risk fac-tors of unplanned readmission after ACDF to improve the quality of management and prevent increase in healthcare costs.
Materials and Methods: We searched the databases of PubMed, EMBASE, Web of Science, and Cochrane Library to identify eli-gible studies using the searching terms, “readmission” and “ACDF.” A total of 10 studies were included.
Results: Among the demographic risk factors, older age [weighted mean difference (WMD), 3.93; 95% confidence interval (CI),2.30–5.56; p<0.001], male [odds ratio (OR), 1.23; 95% CI, 1.10–1.36; p<0.001], and private insurance (OR, 0.34; 95% CI, 0.17–0.69;p<0.001) were significantly associated with unplanned readmission. Among patient characteristics, hypertension (HTN) (OR,2.14; 95% CI, 1.41–3.25; p<0.001), diabetes mellitus (DM) (OR, 1.59; 95% CI, 1.20–2.11; p=0.001), coronary artery disease (CAD)(OR, 2.87; 95% CI, 2.13–3.86; p<0.001), American Society of Anesthesiologists (ASA) physical status grade >2 (OR, 2.13; 95% CI,1.68–2.72; p<0.001), and anxiety and depression (OR, 1.39; 95% CI, 1.29–1.51; p<0.001) were significantly associated with un-planned readmission. Among the perioperative factors, pulmonary complications (OR, 22.52; 95% CI, 7.21–70.41; p<0.001) wassignificantly associated with unplanned readmission.
Conclusion: Male, older age, HTN, DM, CAD, ASA grade >2, anxiety and depression, pulmonary complications were significantlyassociated with an increased occurrence of unplanned readmission after ACDF.

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