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KMID : 1001920140560030237
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Journal of Korean Neurosurgical Society
2014 Volume.56 No. 3 p.237 ~ p.242
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Microsurgical Treatment and Outcome of Pediatric Supratentorial Cerebral Cavernous Malformation
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Noh Jung-Hoon
Cho Kyung-Rae
Yeon Je-Young
Seol Ho-Jun
Shin Hyung-Jin
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Abstract
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Objective: The purpose of this study was to investigate the clinical features and outcomes of pediatric cavernous malformation (CM) in the central nervous system.
Methods: Twenty-nine pediatric patients with supratentorial CM underwent microsurgical excision. In selected cases, transparent tubular retractor system (TTRS) was used to reduce retraction injury and intraoperative neuromonitoring (IONM) was held to preserve functioning cortex. Patients’ demographics and symptoms were reviewed and surgical outcomes were discussed.
Results: The main initial clinical manifestations included the following : seizures (n=13, 45%), headache (n=7, 24%), focal neurological deficits (n=3, 10%), and an incidental finding (n=6, 21%). Overt hemorrhage was detected in 7 patients (24%). There were 19 children (66%) with a single CM and 10 (34%) children with multiple CMs. In 7 cases with deep-seated CM, we used a TTRS to minimize retraction. In 9 cases which location of CM was at eloquent area, IONM was taken during surgery. There was no major morbidity or mortality after surgery. In the 29 operated children, the overall long-term results were satisfactory : 25 (86%) patients had no signs or symptoms associated with CMs, 3 had controllable seizures, and 1 had mild weakness.
Conclusion: With the assistance of neuronavigation systems, intraoperative neuromonitoring, and TTRS, CMs could be targeted more accurately and excised more safely. Based on the satisfactory seizure outcome achieved, complete microsurgical excision in children is recommended for CMs presenting with seizures but removal of hemosiderin-stained areas seems to be unnecessary.
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KEYWORD
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Cavernous malformation, Hemosiderin deposit, Neuronavigation, Transparent tubular retractor
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