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What We Know About Intracranial Hypertension in Children With Syndromic Craniosynostosis
Priya N Doerga1, Robbin de Goederen1, Marie-Lise C van Veelen2
1Sophia Children's Hospital, Dutch Craniofacial Center, Department of Plastic and Reconstructive Surgery and Hand Surgery, Erasmus MC, University Medical Center.
Insights
Intracranial hypertension in syndromic craniosynostosis is multifactorial. Cognitive and behavioral issues in these patients are more likely linked to genetic factors than intracranial hypertension.
Area of Science:
- Neuroscience
- Genetics
- Pediatric Surgery
Background:
- Syndromic craniosynostosis (sCS) involves premature fusion of skull sutures, potentially leading to intracranial hypertension (ICH).
- Understanding the mechanisms of ICH and its impact on neurodevelopmental outcomes in sCS is crucial.
Purpose of the Study:
- To conduct a scoping review on the mechanisms of ICH in sCS.
- To explore whether cognitive and behavioral outcomes in sCS are primarily due to genetic factors or ICH.
Main Methods:
- A comprehensive literature search was performed across multiple databases (EMBASE, MEDLINE, Web of Science, Cochrane, Google Scholar).
- Selected articles underwent full-text review and data extraction.
- Analysis focused on ICH determination criteria and the Monro-Kellie doctrine components (cerebral blood volume, CSF, intracranial volume).
Main Results:
- Ninety full-text articles were analyzed from 1893 search results.
- Invasive intracranial pressure measurement is the gold standard for ICH diagnosis; ophthalmologic methods are the most researched noninvasive alternatives.
- The Monro-Kellie doctrine helps explain ICH development in sCS.
Conclusions:
- ICH in sCS arises from factors including skull growth deflection, sleep apnea, venous hypertension, and CSF flow/absorption issues.
- Cognitive and behavioral deficits in sCS are more strongly associated with genetic origins.
- Cortical thinning and visual impairments may result from ICH.
Objective:
A scoping review of literature about mechanisms leading to intracranial hypertension (ICH) in syndromic craniosynostosis (sCS) patients, followed by a narrative synopsis of whether cognitive and behavioral outcome in sCS is more related to genetic origins, rather than the result of ICH.
Methods:
The scoping review comprised of a search of keywords in EMBASE, MEDLINE, Web of science, Cochrane Central Register of Trials, and Google scholar databases. Abstracts were read and clinical articles were selected for full-text review and data were extracted using a structured template. A priori, the authors planned to analyze mechanistic questions about ICH in sCS by focusing on 2 key aspects, including (1) the criteria for determining ICH and (2) the role of component factors in the Monro-Kellie hypothesis/doctrine leading to ICH, that is, cerebral blood volume, cerebrospinal fluid (CSF), and the intracranial volume.
Results:
Of 1893 search results, 90 full-text articles met criteria for further analysis. (1) Invasive intracranial pressure measurements are the gold standard for determining ICH. Of noninvasive alternatives to determine ICH, ophthalmologic ones like fundoscopy and retinal thickness scans are the most researched. (2) The narrative review shows how the findings relate to ICH using the Monro-Kellie doctrine.
Conclusions:
Development of ICH is influenced by different aspects of sCS: deflection of skull growth, obstructive sleep apnea, venous hypertension, obstruction of CSF flow, and possibly reduced CSF absorption. Problems in cognition and behavior are more likely because of genetic origin. Cortical thinning and problems in visual function are likely the result of ICH.
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