Journal
JOURNAL OF NEURO-ONCOLOGY
Volume 144, Issue 2, Pages 377-384Publisher
SPRINGER
DOI: 10.1007/s11060-019-03240-w
Keywords
Brain metastases; Cancer; Fatigue; Multidimensional fatigue inventory; Patient reported outcomes; Radiosurgery
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Funding
- ZonMw, the Netherlands organization for health research and development [842003008]
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Purpose Fatigue is a common and distressing symptom in cancer patients which negatively affects patients' daily functioning and health-related quality of life. The aim of this study was to assess multidimensional fatigue in patients with brain metastases (BM) before, and after Gamma Knife radiosurgery (GKRS). Methods Patients with BM, an expected survival > 3 months, and a Karnofsky Performance Status >= 70 and 104 Dutch non-cancer controls were recruited. The Multidimensional Fatigue Inventory (MFI), measuring general fatigue, physical fatigue, mental fatigue, reduced activity and reduced motivation, was used. Baseline levels of fatigue between patients and controls were compared using independent-samples t-tests. The course of fatigue over time, and clinical and psychological predictors thereof, were analyzed using linear mixed models (within-group analyses). Results Ninety-two, 67 and 53 patients completed the MFI at baseline, and 3 and 6 months after GKRS. Before GKRS, patients with BM experienced significantly higher levels of fatigue on all subscales compared to controls (medium to large effect sizes). Over 6 months, general and physical fatigue increased significantly (p = .009 and p < .001), and levels of mental fatigue decreased significantly (p = .027). No significant predictors of the course of fatigue over time could be identified. Conclusions Fatigue is a major problem for patients with BM. Different patterns over time were observed for the various aspects of fatigue in patients with BM. Information on the various aspects of fatigue is important because fatigue may negatively affect patients' functional independence, health-related quality of life, and adherence to therapy.
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