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KMID : 1145220220190010053
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Neurospine
2022 Volume.19 No. 1 p.53 ~ p.62
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Frailty Status Is a More Robust Predictor Than Age of Spinal Tumor Surgery Outcomes: A NSQIP Analysis of 4,662 Patients
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Kazim Syed Faraz
Bowers Christian A.
Dicpinigaitis Alis J.
Bowers Christian A.
Shah Smit
Couldwell William T.
Thommen Rachel
Alvarez-Crespo Daniel J.
Conlon Matthew
Schmidt Meic H.
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Abstract
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Objective: The present study aimed to evaluate the effect of baseline frailty status (as measured by modified frailty index-5 [mFI-5]) versus age on postoperative outcomes of patients undergoing surgery for spinal tumors using data from a large national registry.
Methods: The National Surgical Quality Improvement Program database was used to collect spinal tumor resection patients’ data from 2015 to 2019 (n = 4,662). Univariate and multivariate analyses for age and mFI-5 were performed for the following outcomes: 30-day mortality, major complications, unplanned reoperation, unplanned readmission, hospital length of stay (LOS), and discharge to a nonhome destination. Receiver operating characteristic (ROC) curve analysis was used to evaluate the discriminative performance of age versus mFI-5.
Results: Both univariate and multivariate analyses demonstrated that mFI-5 was a more robust predictor of worse postoperative outcomes as compared to age. Furthermore, based on categorical analysis of frailty tiers, increasing frailty was significantly associated with increased risk of adverse outcomes. ‘Severely frail’ patients were found to have the highest risk, with odds ratio 16.4 (95% confidence interval [CI],11.21?35.44) for 30-day mortality, 3.02 (95% CI, 1.97?4.56) for major complications, and 2.94 (95% CI, 2.32?4.21) for LOS. In ROC curve analysis, mFI-5 score (area under the curve [AUC] = 0.743) achieved superior discrimination compared to age (AUC = 0.594) for mortality.
Conclusion: Increasing frailty, as measured by mFI-5, is a more robust predictor as compared to age, for poor postoperative outcomes in spinal tumor surgery patients. The mFI-5 may be clinically used for preoperative risk stratification of spinal tumor patients.
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KEYWORD
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Spinal tumors, Frailty, Age, Surgical outcomes, National Surgical Quality Improvement Project, Modified frailty index-5
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