• World Neurosurg · Oct 2015

    Affective Symptoms and White Matter Changes in Brain Tumor Patients.

    • Andre Richter, Cristoph M Woernle, Niklaus Krayenbühl, Spyridon Kollias, and David Bellut.
    • Department of Psychiatry, University Hospital of Zurich, University of Zurich, Zürich, Switzerland. Electronic address: andre.richter@uzh.ch.
    • World Neurosurg. 2015 Oct 1;84(4):927-32.

    BackgroundAffective symptoms are frequent in patients with brain tumors. The origin of such symptoms is unknown; either focal brain injury or reactive emotional distress may be responsible. This cross-sectional pilot study linked depressive symptoms and anxiety to white matter integrity. The objective was to test the hypothesis of a relationship between tissue damage and brain function in patients with brain tumors and to provide a basis for further studies in this field.MethodsDiffusion tensor imaging was performed in 39 patients with newly diagnosed supratentorial primary brain tumor. Patients completed the Beck Depression Inventory, and examiners rated them on the Hamilton Depression Rating Scale (HDRS). State and trait anxiety were measured using the State-Trait Anxiety Inventory. Correlations between fractional anisotropy (FA) and psychological measures were assessed on the basis of regions of interest; the defined regions of interest corresponded to clearly specified white matter tracts.ResultsStatistical analysis revealed correlations between FA in the left internal capsule and scores on the HDRS, Beck Depression Inventory, and State-Trait Anxiety Inventory (P < 0.05). HDRS scores were also correlated with FA in the right medial uncinate fasciculus, and state anxiety scores were significantly correlated with FA in the left lateral and medial uncinate fasciculus (P < 0.05).ConclusionsOur results suggest that neurobiologic mechanisms related to the integrity of tissue in specific white matter tracts may influence affective symptoms in patients with brain tumors, and these mechanisms can be investigated with diffusion tensor imaging. However, prospective observational studies are needed to investigate further the links between brain structures and the severity of affective symptoms in this patient population.Copyright © 2015 Elsevier Inc. All rights reserved.

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