Peer-reviewed article
Neurodevelopmental Outcomes Among Nonsyndromic Craniosynostosis Subtypes.
John Y Ha, Claire Semerjian, Krystal L Tomei, Howard D Wang ·
Summary
Written by AI, not yet AICS's view · claude-haiku-4-5-20251001This study compared neurodevelopmental outcomes in children with different types of nonsyndromic craniosynostosis (a condition where skull bones fuse prematurely) against unaffected controls. Children with all three subtypes showed higher rates of intellectual disability and motor delays. Metopic craniosynostosis was associated with the most severe developmental problems including speech disorders and autism, while sagittal craniosynostosis had the highest rates of intracranial pressure abnormalities but milder developmental outcomes.
Key points
- All craniosynostosis subtypes had significantly elevated rates of intellectual disability compared to controls (sagittal: RR=6.17, metopic: RR=7.00, coronal: RR=9.20)
- Motor delays were elevated across all subtypes (sagittal: RR=1.26, metopic: RR=1.63, coronal: RR=1.70)
- Metopic craniosynostosis showed the most severe neurodevelopmental profile with elevated speech/language disorders (RR=1.39), learning disorders (RR=1.82), and autism spectrum disorder (RR=1.98)
- Sagittal craniosynostosis had the highest rates of intracranial pressure abnormalities (RR=16.20) but the mildest developmental and behavioral profile
- Study included 3,517 children with sagittal, 1,776 with metopic, and 379 with coronal craniosynostosis
Limitations
This is a retrospective cohort study using administrative data, which cannot establish causation or account for all confounding factors. The study focuses on medical outcomes in children who received diagnoses and treatment, and may not represent all children with craniosynostosis or those from low-resource settings.
Abstract
BACKGROUND: Nonsyndromic craniosynostosis (NSCS) has been associated with higher rates of cognitive, developmental, and motor delays. This study compares neurodevelopmental outcomes among different NSCS subtypes. METHODS: A retrospective cohort study was performed using a large multi-institutional database. Patients with sagittal (SCS), metopic (MCS), and coronal (CCS) craniosynostosis were propensity-score matched 1:1 with age-matched unaffected controls. Outcomes included psychiatric and behavioral disorders, intellectual disability, speech and language disorders, neurodevelopmental disorders [autism spectrum disorder, attention-deficit hyperactivity disorder (ADHD)], learning disorders, motor disorders, and intracranial pressure (ICP) abnormalities. RESULTS: Final cohorts included 3,517 children with SCS (mean age: 7.9 ± 4.4 y), 1776 with MCS (9.0 ± 5.2 y), and 379 with CCS (9.8 ± 6.1 y). All subtypes had significantly higher rates of intellectual disability (SCS: RR = 6.17; MCS: RR = 7.00; CCS: RR = 9.20) and motor delays (SCS: RR = 1.26; MCS: RR = 1.63; CCS: RR = 1.70) compared with controls. Metopic craniosynostosis demonstrated the most severe profile, with elevated rates of speech and language disorders (RR = 1.39), overall neurodevelopmental disorders (RR = 1.22), specific learning disorders (RR = 1.82), and autism spectrum disorder (RR = 1.98). Intracranial pressure abnormalities were highest in SCS (RR = 16.20), yet SCS showed rates of psychiatric disorders and neurodevelopmental diagnoses comparable to or lower than controls. CONCLUSION: Intellectual disability and motor delays are elevated across all NSCS subtypes. Metopic craniosynostosis carries the most severe neurodevelopmental phenotype. Despite the highest ICP rates, SCS is associated with the mildest developmental and behavioral profile.