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Sudden benzodiazepine-induced resolution of post-operative pediatric cerebellar mutism syndrome: a clinical-SPECT study

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Abstract

Post-operative pediatric cerebellar mutism syndrome (PPCMS) is a clinical syndrome arising from cerebellar injury and characterized by absence of speech and other possible symptoms and signs. Rare reports described some benefit after administration of dopamine agonist therapy, but no treatment has proven efficacy. In this paper, we report on the dramatic, sudden resolution of PPCMS induced by midazolam administration in a boy who underwent posterior fossa surgery for choroid plexus papilloma of the fourth ventricle. In addition to clinical improvement, post-midazolam single-photon emission computed tomography also demonstrated amelioration of brain perfusion.

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Acknowledgments

Prof. Ferdinando Nicoletti (Department of Physiology and Pharmacology, University Sapienza of Rome, Italy) is heartily acknowledged for his precious contribution and suggestions. Dr. Marina Manzo is fully acknowledged for performing neuropsychological tests.

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Correspondence to Francesco Nicita.

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Table S1

Mean and standard deviation (SD) of percentage of maximum count rate registered on the encephalon and calculated for all the selected ROI. Comparison between the values obtained during the different SPECT shows progressive improvement of perfusion on the left parietal and occipital lobes and of basal ganglia (values in bold). Abbreviation list: CNl = left caudate nucleus left; CNr = right caudate nucleus; FLl = left frontal lobe; FLr = right frontal lobe; OLl = left occipital lobe; OLr = right occipital lobe; PLl = left parietal lobe; PLr = right parietal lobe; TLl = left temporal lobe; TLr = right temporal lobe (DOC 38 kb)

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Nicita, F., Paiano, M., Liberatore, M. et al. Sudden benzodiazepine-induced resolution of post-operative pediatric cerebellar mutism syndrome: a clinical-SPECT study. Acta Neurochir 159, 475–479 (2017). https://doi.org/10.1007/s00701-016-3059-y

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  • DOI: https://doi.org/10.1007/s00701-016-3059-y

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