Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2009
Surgical considerations in fourth ventricular ependymoma with the transcerebellomedullary fissure approach in focus.
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Shimoji Kazuaki, Miyajima Masakazu, Karagiozov Kostadin, Yatomi Kenji, Matsushima Toshio, Arai Hajime
Аннотация
INTRODUCTION: Within the existing consensus for the best management of pediatric infratentorial ependymomas (PIE), surgery is the most important stage, where complete removal should be the perfect aim, before complementing it with chemo- or radiotherapy. That, however, remains a challenge even for the most skillful surgeons because of the vicinity of important brainstem and cranial nerve structures involved and is particularly difficult in lateral extensions.
MATERIALS AND METHODS: The paper analyzes the current trends of PIE treatment with emphasis on resection difficulties created by lateral extensions. Anatomical analysis and clinical application of the cerebellomedullary fissure dissection has created specific approaches, providing safe route to the lateral recess and cerebellopontine area by dividing safely tenia and tonsils and biventer lobes retraction.
DISCUSSION AND CONCLUSION: Bilateral and unilateral approaches have been developed. This approach prevents the damage of transvermian access and the resulting cerebellar mutism in some cases. Indications, technique and benefits of transcerebellomedullary fissure types of approaches are discussed.
MATERIALS AND METHODS: The paper analyzes the current trends of PIE treatment with emphasis on resection difficulties created by lateral extensions. Anatomical analysis and clinical application of the cerebellomedullary fissure dissection has created specific approaches, providing safe route to the lateral recess and cerebellopontine area by dividing safely tenia and tonsils and biventer lobes retraction.
DISCUSSION AND CONCLUSION: Bilateral and unilateral approaches have been developed. This approach prevents the damage of transvermian access and the resulting cerebellar mutism in some cases. Indications, technique and benefits of transcerebellomedullary fissure types of approaches are discussed.