Abstract
Background
Alagille syndrome is a pediatric multisystem disease with increased prevalence of cerebrovascular disease. The spectrum of cerebrovascular disease in Alagille syndrome includes cerebral aneurysms, moyamoya arteriopathy and dolichoectasia. The prevalence of cerebrovascular disease in Alagille syndrome varies widely in the literature.
Objective
To determine the prevalence of cerebrovascular disease in our institution’s Alagille patient population by employing a full primary review of all available neuroimaging.
Materials and methods
An institutional review board-approved retrospective review of all Alagille syndrome patients seen at a tertiary care children’s hospital from January 2000 to January 2014 was performed. All neuroimaging studies were reviewed for arterial or venous abnormalities. The prevalence of arterial and venous abnormalities was calculated and clinical outcomes were determined.
Results
Fifty-two patients with Alagille syndrome ranging in age from 11 months to 27 years were studied. Nineteen (37%) had dedicated vascular neuroimaging. Six (32%) had cerebral arterial disease, 4 with dolichoectasia, 3 with aneurysm(s) and 2 with moyamoya arteriopathy. Three of the four patients with dolichoectasia had associated aneurysm(s). Venous anomalies were present in 4 (21%) patients. One patient with moyamoya arteriopathy underwent revascularization procedures. No deaths were attributable to cerebrovascular disease.
Conclusion
Cerebral vasculopathy is an important feature of Alagille syndrome and includes dolichoectasia, cerebral aneurysms and moyamoya arteriopathy. The high prevalence identified in our study suggests noninvasive vascular neuroimaging screening should be performed in this patient population. In addition to cerebral arterial abnormalities, alterations of venous development may be a feature of Alagille syndrome.
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Acknowledgements
This research was presented as an oral scientific presentation at the American Society of Neuroradiology 2015 meeting in Chicago, IL.
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Carpenter, C.D., Linscott, L.L., Leach, J.L. et al. Spectrum of cerebral arterial and venous abnormalities in Alagille syndrome. Pediatr Radiol 48, 602–608 (2018). https://doi.org/10.1007/s00247-017-4043-2
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DOI: https://doi.org/10.1007/s00247-017-4043-2