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Published on: January 27, 2015
Venous hypertension and craniosynostosis
1Hospital for Sick Children, London, WC1N 3H, UK. haywar@gosh.nhs.uk
Insights
Venous hypertension is a key factor in raised intracranial pressure for children with syndromic craniosynostosis. Understanding anomalous venous drainage patterns is crucial for effective treatment strategies in these complex cases.
Area of Science:
- Pediatric Neurosurgery
- Craniofacial Anomalies
- Vascular Development
Background:
- Syndromic craniosynostosis is associated with complex cerebral venous system anomalies.
- Abnormal venous drainage patterns contribute to elevated intracranial pressure in affected children.
- Potential causes include venous constriction, FGFR mutations, and persistent fetal venous patterns.
Purpose of the Study:
- To explore the role of venous hypertension in syndromic craniosynostosis.
- To describe anomalous cerebral venous drainage in children with this condition.
- To discuss the etiology and treatment implications of venous hypertension.
Main Methods:
- Review of human cerebral venous system development.
- Description of anomalous venous drainage patterns in syndromic craniosynostosis.
- Discussion of etiological theories and interrelationships between contributing factors.
Main Results:
- Venous hypertension is identified as a significant contributor to increased intracranial pressure.
- Specific patterns of anomalous venous drainage are detailed in relation to craniosynostosis.
- The interrelationship between venous hypertension and other factors like hydrocephalus is explained.
Conclusions:
- Venous hypertension plays a critical role in the pathophysiology of raised intracranial pressure in syndromic craniosynostosis.
- Understanding these venous anomalies is essential for managing affected children.
- Treatment strategies should consider venous hypertension as a primary factor in select cases.
Introduction:
This article addresses the relevance of venous hypertension to children born with, in particular, the "syndromic" forms of craniosynostosis. The development of the human cerebral venous system is summarised and the patterns of anomalous venous drainage seen in children with complex forms of craniosynostosis associated with raised intracranial pressure are described.
Aetiology:
The aetiology of these abnormal patterns is discussed under the general headings of "The constriction theory", "A primary role for FGFR mutations" and "Persistence of the foetal pattern of intracranial venous drainage."Venous hypertension (along with hydrocephalus, cranio-cerebral disproportion and airway obstruction) has an important role in the aetiology of raised intracranial pressure in severely affected children.
Treatment:
The inter-relationship between these factors is explained and then the treatment of those children whose raised intracranial pressure is considered to be due predominantly to venous hypertension is described.
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