Comparative Associations of Baseline Frailty Status and Age With Postoperative Mortality and Duration of Hospital Stay Following Metastatic Brain Tumor Resection

Authors

Alis J. Dicpinigaitis, School of Medicine, New York Medical College, Valhalla, NY, 10595, USA.
Simon Hanft, Department of Neurosurgery, Westchester Medical Center at New York Medical College, Valhalla, NY, 10595, USA.
Jared B. Cooper, Department of Neurosurgery, Westchester Medical Center at New York Medical College, Valhalla, NY, 10595, USA.
Chirag D. Gandhi, Department of Neurosurgery, Westchester Medical Center at New York Medical College, Valhalla, NY, 10595, USA.
Syed Faraz Kazim, Department of Neurosurgery MSC10 5615, University of New Mexico Health Science Center, 1 University of New Mexico, Albuquerque, NM, 87106, USA.
Meic H. Schmidt, Department of Neurosurgery MSC10 5615, University of New Mexico Health Science Center, 1 University of New Mexico, Albuquerque, NM, 87106, USA.
Fawaz Al-Mufti, Department of Neurosurgery, Westchester Medical Center at New York Medical College, Valhalla, NY, 10595, USA.Follow
Christian A. Bowers, Department of Neurosurgery MSC10 5615, University of New Mexico Health Science Center, 1 University of New Mexico, Albuquerque, NM, 87106, USA. CABowers@salud.unm.edu.

Author Type(s)

Faculty

Journal Title

Clinical & Experimental Metastasis

First Page

303

Last Page

310

Document Type

Article

Publication Date

4-1-2022

Department

Neurosurgery

Second Department

Neurology

Abstract

Metastatic brain tumors are the most common intracranial neoplasms diagnosed in the United States. Although baseline frailty status has been validated as a robust predictor of morbidity and mortality across various surgical disciplines, evidence within cranial neurosurgical oncology is limited. Adult metastatic brain tumor patients treated with resection were identified in the National Inpatient Sample during the period of 2015-2018. Frailty was quantified using the 11-point modified frailty index (mFI-11) and its association with clinical endpoints was evaluated through complex samples multivariable logistic regression and receiver operating characteristic (ROC) curve analyses. Among 13,650 metastatic brain tumor patients identified (mean age 62.8 years), 26.8% (n = 3665) were robust (mFI = 0), 31.4% (n = 4660) were pre-frail (mFI = 1), 23.2% (n = 3165) were frail (mFI = 2), and 15.8% (n = 2160) were severely frail (mFI ≥ 3). On univariable assessment, these cohorts stratified by increasing frailty were significantly associated with postoperative complications (13.6%, 15.9%, 23.9%, 26.4%; p < 0.001), mortality (1.2%, 1.4%, 2.7%, 3.2%; p = 0.028), and extended length of stay (eLOS) (15.7%, 22.5%, 28.9%, 37.7%; p < 0.001). Following multivariable logistic regression analysis, frailty (by mFI-11) was independently associated with postoperative mortality (aOR 1.34, 95% CI 1.08, 1.65) and eLOS (aOR 1.26, 95% CI 1.17, 1.37), while increasing age was not associated with these endpoints. ROC curve analysis demonstrated superior discrimination of frailty (by mFI-11) in comparison with age for both mortality (AUC 0.61 vs. 0.58) and eLOS (AUC 0.61 vs. 0.53). Further statistical assessment through propensity score adjustment and decision tree analysis confirmed and extended the findings of the primary analytical models. Frailty may be a more robust predictor of postoperative outcomes in comparison with age following metastatic brain tumor resection.

Recommended Citation

Dicpinigaitis, A. J., Hanft, S., Cooper, J. B., Gandhi, C. D., Kazim, S. F., Schmidt, M. H., Al-Mufti, F., & Bowers, C. A. (2022). Comparative Associations of Baseline Frailty Status and Age With Postoperative Mortality and Duration of Hospital Stay Following Metastatic Brain Tumor Resection. Clinical & Experimental Metastasis, 39 (2), 303-310. https://doi.org/10.1007/s10585-021-10138-3