Erschienen in:
01.03.2016 | Original Communication
Impact of Angiotensin-II receptor blockers on vasogenic edema in glioblastoma patients
verfasst von:
Antoine Kourilsky, Guillaume Bertrand, Renata Ursu, Jennifer Doridam, Ciprian Barlog, Thierry Faillot, Emmanuel Mandonnet, Catherine Belin, Christine Levy, Antoine F. Carpentier
Erschienen in:
Journal of Neurology
|
Ausgabe 3/2016
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Abstract
Glioblastoma patients often require chronic administration of steroids due to peri-tumoral edema. Preliminary studies showed that treatment with Angiotensin-II Receptor Blockers (ARBs) for high blood pressure might be associated with reduced peri-tumoral edema. In this study, we aim to radiologically assess the effect of ARBs on peri-tumoral edema. We conducted a cross-sectional survey on patients with newly diagnosed GBM. Patients treated with ARBs for high blood pressure were paired to non ARB-treated patients based on similar age, tumor location and tumor size. Patients taking steroids at the time of pre-operative Magnetic Resonance Imaging were excluded from the study. In each pair of patients, we compared the volumes of peri-tumoral hyper T2-Fluid Attenuated Inversion Recovery (FLAIR) signal and the Apparent Diffusion Coefficient (ADC) in the same area. Eleven (11) ARB-treated patients were selected and paired to 11 non ARB-treated controls. Volumes of peri-tumoral hyper T2-FLAIR signal were significantly lower in the ARB-treated group than in the non ARB-treated group (p = 0.02). Additionally, peri-tumoral ADCs were also significantly lower in the treated group (p = 0.02), suggesting that the peri-tumoral area in this group had less edematous features. These results suggest that ARBs may reduce the volume of peri-tumoral hyper T2-FLAIR signal by decreasing edema.