Neuropediatrics 2006; 37(6): 350-358
DOI: 10.1055/s-2007-964904
Original Article

Georg Thieme Verlag KG Stuttgart · New York

Impact of Surgery and Adjuvant Therapy on Balance Function in Children and Adolescents with Cerebellar Tumors

B. Schoch1 , J. Konczak2 , 3 , A. Dimitrova4 , E. R. Gizewski5 , R. Wieland6 , D. Timmann4
  • 1Department of Neurosurgery, University of Duisburg-Essen, Essen, Germany
  • 2Human Sensorimotor Control Laboratory, University of Minnesota, Minneapolis, USA
  • 3Department of Neurology, University of Minnesota, Minneapolis, USA
  • 4Department of Neurology, University of Duisburg-Essen, Essen, Germany
  • 5Department of Neuroradiology, University of Duisburg-Essen, Essen, Germany
  • 6Department of Pediatric Hematooncology and Endocrinology, University of Duisburg-Essen, Essen, Germany
Further Information

Publication History

Received: August 7, 2006

Accepted after Revision: January 4, 2007

Publication Date:
14 March 2007 (online)

Abstract

Objectives: This study examined the effects of posterior fossa tumor surgery and concomitant irradiation and/or chemotherapy on the long-term recovery of balance function in children and adolescent patients. Subjects and Methods: 22 patients, treated during childhood for a benign (n = 14) or malignant cerebellar tumor (n = 8), were examined in chronic state (mean latency between surgery and testing: 7.7 years, range 3 - 17 years). Postural impairments were assessed with static and dynamic posturography. All cerebellar lesions were documented by standardized and normalized MRI data. Healthy age- and gender-matched subjects served as a control group. Results: Comparing the balance function of (i) children with or without affected cerebellar nuclei and (ii) children with and without adjuvant chemotherapy and/or radiotherapy revealed that damage to the cerebellar nuclei had more impact on neurological impairment than concomitant tumor therapy. Balance abnormalities were most pronounced when a lesion affected the fastigial nucleus. Chemotherapy with its neurological side effect was associated with enhanced postural sway in only two children with malignant tumors. Conclusions: The study results indicate that the sparing of the deep cerebellar nuclei had the greatest impact on the recovery of balance function in pediatric patients treated for both a benign or malignant cerebellar tumor.

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M.D. Beate Schoch

Department of Neurosurgery
University of Duisburg-Essen

Hufelandstr. 55

45122 Essen

Germany

Email: beate.schoch@uni-essen.de

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