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Age at Initial Consultation for Craniosynostosis: Comparison Across Different Patient Characteristics
Mitchel Seruya, MD1, Albert Oh, MD2, Michael Boyajian, MD2, John Myseros, MD2, Amanda Yaun, MD2, Robert Keating, MD2, Gary Rogers, MD, JD, MBA, MPH2. 1Georgetown University Hospital, Washington, DC, USA, 2Children's National Medical Center, Washington, DC, USA.
BACKGROUND: The severity and dysmorphology that results from the premature fusion of one or more cranial suture is not uniform. Less striking phenotypes may be more easily missed on routine screening, possibly leading to delayed diagnosis and treatment. The purpose of this study was to compare the age at initial presentation for the different forms of craniosynostosis. METHODS: The authors reviewed the records of all patients who underwent open craniofacial repair of craniosynostosis at a single institution from 1996-2009. Relationships between type of suture fusion and age at initial consultation were compared. RESULTS: 211 patients (136 males, 75 females) were identified. Indications included sagittal (n=96), metopic (n=39), unicoronal (n=33), bicoronal (n=24), multisutural (n=15), bilambdoidal (n=3), and unilambdoidal (n=1) synostoses. 17 patients (8.1%) had a craniosynostosis syndrome and 5 (2.4%) had a syndrome or disorder not typically associated with craniosynostosis (X-linked hypophosphatemic rickets [n=3], achondroplasia [n=1], and Beckwith Wiedemann [n=1]). Median age at initial consultation was 4.1 months; there was no gender difference. Patients with X-linked hypophosphatemic rickets presented at a significantly older age than nonsyndromic patients or those with a known craniosynostosis syndrome (Table I). Those with multisutural synostosis presented at a significantly older age than patients with sagittal or bicoronal synostosis (Table II). CONCLUSIONS: Patients with multisutural involvement or X-linked hypophosphatemic rickets had a significant delay in presentation for craniosynostosis. The latter group of patients may especially benefit from routine surveillance for craniosynostosis given their advanced age at diagnosis. TABLE I. Age at Initial Consultation versus Disorder or Syndrome | | | Group | Disorder / Syndrome | Median age at consult (months) * | 1 | Nonsyndromic (N=189) | 4.1‡ | 2 | Craniosynostosis syndrome (N=17) | 4.0† | 3 | XLHR (N=3) | 32.3 | XLHR = X-linked Hypophosphatemic Rickets * Significant intergroup difference on Kruskal-Wallis test (p < 0.05). ‡ Significant difference on Mann-Whitney test comparing group 1 versus group 3. (p < 0.05) † Significant difference on Mann-Whitney test comparing group 2 versus group 3 (p < 0.05). |
TABLE II. Age at Initial Consultation versus Type of Affected Suture(s)
| | | Group | Type | Median age at consult (months)* | 1 | Sagittal | 3.2‡ | 2 | Metopic | 4.4 | 3 | Unicoronal | 4.6 | 4 | Bicoronal | 4.1† | 5 | Multiple | 10.7 | Note: 4 patients with lambdoidal synostosis not included in analysis due to low power. * Significant intergroup difference on Kruskal-Wallis test (p < 0.05). ‡ Significant difference on Mann-Whitney test comparing group 1 versus group 5. (p < 0.05) † Significant difference on Mann-Whitney test comparing group 4 versus group 5 (p < 0.05). |
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