[Postoperative mutism in children with the posterior fossa tumors]
Insights
Posterior fossa syndrome and cerebellar mutism syndrome occurred in 8.7% of pediatric neurosurgery patients. Researchers suggest this mutism may stem from neural connections rather than specific brain structures.
Area of Science:
- Pediatric Neurosurgery
- Neuroscience
- Neurology
Context:
- Analysis of 376 pediatric patients undergoing surgery for posterior fossa tumors between 1990-1999.
- Focus on the incidence and characteristics of postoperative posterior fossa syndrome and cerebellar mutism syndrome.
Purpose:
- To analyze the incidence and potential causes of cerebellar mutism syndrome following posterior fossa tumor surgery in children.
- To review existing literature on mutism development and identify predisposing factors.
- To propose a hypothesis regarding the underlying mechanisms of mutism.
Summary:
- A significant percentage (8.7%) of children developed posterior fossa syndrome and cerebellar mutism syndrome postoperatively.
- Literature review identified numerous predisposing factors for mutism but no specific anatomical lesions.
- The authors propose that mutism may result from functional disruptions in neural connections rather than localized anatomical damage.
Impact:
- Highlights the incidence of a specific postoperative neurological deficit in pediatric neurosurgery.
- Contributes to understanding the complex mechanisms of cerebellar mutism syndrome.
- Suggests a shift in focus towards functional connectivity in the study of post-surgical mutism.
Abstract:
Over 10 years (1990-1999), the Pediatric Department, Ukrainian Institute of Neurosurgery named after Academician A. P. Romodanov, operated on 376 children with posterior fossa tumors. Thirty two 8.7% children developed a posterior fossa syndrome and cerebellar mutism syndrome postoperatively. This paper gives a detailed analysis of the date available in the world literature on the incidence and causes of mutism, and mechanisms of its development. Many factors predisposing to mutism were identified, but no anatomic structures responsible for its formation were found. In the authors' opinion, mutism may not result from anatomic structures, but from the functioning of afferent or efferent connections to this brain region bilaterally.
