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Cerebellar mutism after posterior cranial fossa surgery
M Salvati1, L Cervoni, A Santoro
1Department of Neurological Sciences, Neurosurgery La Sapienza, University of Rome, Italy.
Journal of Neurosurgical Sciences
|March 1, 1996
Summary
Mutism is a rare complication following posterior fossa (PF) tumor removal. This study suggests an organic cerebellar cause for mutism after PF surgery, supported by observed dysarthria during speech recovery.
Area of Science:
- Neuroscience
- Pediatric Neurosurgery
- Oncology
Background:
- Posterior fossa (PF) tumors are surgically treated, but rare complications like mutism can occur.
- Mutism following PF surgery has been attributed to functional or organic causes.
- Medulloblastoma is a common pediatric brain tumor often located in the posterior fossa.
Observation:
- Three pediatric patients (ages 5-20) developed mutism after suboccipital craniectomy for medulloblastoma removal.
- No long tract or brainstem signs were observed in the affected patients.
- Dysarthria was noted during the speech recovery phase in these patients.
Findings:
- The study presents three cases of mutism post-posterior fossa surgery.
- A review of 24 similar reported cases suggests mutism is a rare sequel of cerebellar operations.
- The clinical presentation, particularly dysarthria during recovery, points towards an organic cerebellar etiology for the mutism.
Implications:
- Understanding the physiopathology of post-surgical mutism is crucial for patient management.
- This suggests that cerebellar pathways may be implicated in the generation of speech.
- Further research into the neurobiological underpinnings of mutism after posterior fossa surgery is warranted.