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Published in: Journal of Neuro-Oncology 2/2019

01-11-2019 | Obesity | Clinical Study

Underweight and weight loss are predictors of poor outcome in patients with brain metastasis

Authors: Anna Lareida, Robert Terziev, Bettina Grossenbacher, Nicolaus Andratschke, Patrick Roth, Sabine Rohrmann, Rolf Stahel, Matthias Guckenberger, Emilie Le Rhun, Michael Weller, Fabian Wolpert

Published in: Journal of Neuro-Oncology | Issue 2/2019

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Abstract

Purpose

Overweight may be associated with favorable outcome whereas tumor cachexia may be associated with worse outcome in patients with metastatic cancer. Here we evaluate the association of abnormal body mass index and weight change with outcome in patients with brain metastasis.

Methods

Patients with a diagnosis of brain metastasis treated at the University Hospital Zurich (n = 703) were assessed for associations of body mass index, weight change, comorbidities and survival.

Results

Compared with patients with normal body mass index of 18.5–24.9 kg/m2 and a median overall survival of 9 months (95% confidence interval 7.5–10.5), overall survival was inferior in patients with body mass index < 18.5 kg/m2 (overall survival 6 months, 95% confidence interval 1.6–10.3, p = 0.04), but superior in patients with body mass index > 25 kg/m2 (overall survival 13 months, 95% confidence interval 11.0–15.0; p = 0.033). We report a median relative weight loss of 5% within the first 6 months of diagnosis of brain metastasis (95% confidence interval 3.3–6.5), and reduction exceeding the median was associated with an unfavorable outcome (weight loss < 5% 22.0 months, 95% confidence interval 19.2–24.8; weight loss > 5% 14.0 months, 95% confidence interval 11.9–16.).

Conclusion

High body mass index is associated with better, and underweight with worse outcome in patients with brain metastasis. Conversely, weight loss above median may predict poor outcome. Future studies need to address whether vigorous treatment of tumor cachexia, e.g. by specific nutrition management, might improve outcome of patients with brain metastasis. In contrast, regimens associated with weight loss such as ketogenic diet may be detrimental.
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Metadata
Title
Underweight and weight loss are predictors of poor outcome in patients with brain metastasis
Authors
Anna Lareida
Robert Terziev
Bettina Grossenbacher
Nicolaus Andratschke
Patrick Roth
Sabine Rohrmann
Rolf Stahel
Matthias Guckenberger
Emilie Le Rhun
Michael Weller
Fabian Wolpert
Publication date
01-11-2019
Publisher
Springer US
Published in
Journal of Neuro-Oncology / Issue 2/2019
Print ISSN: 0167-594X
Electronic ISSN: 1573-7373
DOI
https://doi.org/10.1007/s11060-019-03300-1

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