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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Adachi J, Nishikawa R, Hirose T, Matsutani M (2005) Mixed neuronal-glial tumor of the fourth ventricle and successful treatment of postoperative mutism with bromocriptine: case report. Surg Neurol 63:375–379
Caner H, Altinörs N, Benli S, Calişaneller T, Albayrak A (1999) Akinetic mutism after fourth ventricle choroid plexus papilloma: treatment with a dopamine agonist. Surg Neurol 51:181–184
Catsman-Berrevoets CE, van Dongen HR, Zwetsloot CP (1992) Transient loss of speech followed by dysarthria after removal of posterior fossa tumour. Dev Med Child Neurol 34:1102–1109
Clerico A, Sordi A, Ragni G, Festa A, Cappelli C, Maini CL (2002) Brief report: transient mutism following posterior fossa surgery studied by single photon emission computed tomography (SPECT). Med Pediatr Oncol 38:445–448
Dailey AT, McKhann GM 2nd, Berger MS (1995) The pathophysiology of oral pharyngeal apraxia and mutism following posterior fossa tumor resection in children. J Neurosurg 83:467–475
Echiverri HC, Tatum WO, Merens TA, Coker SB (1988) Akinetic mutism: pharmacologic probe of the dopaminergic mesencephalofrontal activating system. Pediatr Neurol 4:228–230
Gudrunardottir T, Morgan AT, Lux AL, Walker DA, Walsh KS, Wells EM, Wisoff JH, Juhler M, Schmahmann JD, Keating RF, Catsman-Berrevoets C, Iceland Delphi Group (2016) Consensus paper on post-operative pediatric cerebellar mutism syndrome: the Iceland Delphi results. Childs Nerv Syst 32(7):1195–1203
Infeld B, Binns D, Lichtenstein M, Hopper JL, Davis SM (1997) Volumetric analysis of cerebral hypoperfusion on SPECT: validation and reliability. J Nucl Med 38(9):1447–1453
Küper M, Timmann D (2013) Cerebellar mutism. Brain Lang 127(3):327–333
Liberatore M, Morreale M, Megna V, Collorone S, Chondrogiannis S, Drudi FM, Anagnostou C, Civitelli L, Francia A, Maffione AM, Marzola MC, Rubello D (2015) Role of brain perfusion SPECT with 99mTc HMPAO in the assessment of response to drug therapy in patients with autoimmune vasculitis: a prospective study. N Am J Med Sci 7:135–142
Mapelli L, Pagani M, Garrido JA, D’Angelo E (2015) Integrated plasticity at inhibitory and excitatory synapses in the cerebellar circuit. Front Cell Neurosci 9:169
Pitsika M, Tsitouras V (2013) Cerebellar mutism. J Neurosurg Pediatr 12(6):604–614
Shyu C, Burke K, Souweidane MM, Dunkel IJ, Gilheeney SW, Gershon T, Khakoo Y (2011) Novel use of zolpidem in cerebellar mutism syndrome. J Pediatr Hematol Oncol 33:148–149
van Baarsen KM, Grotenhuis JA (2014) The anatomical substrate of cerebellar mutism. Med Hypotheses 82(6):774–780
van Dongen HR, Catsman-Berrevoets CE, van Mourik M (1994) The syndrome of “cerebellar” mutism and subsequent dysarthria. Neurology 44:2040–2046
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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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