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  • Title: Dilated Cerebral Arteriopathy in Classical Pompe Disease: A Novel Finding.
    Author: Viamonte M, Tuna I, Rees J.
    Journal: Pediatr Neurol; 2020 Jul; 108():117-120. PubMed ID: 32248988.
    Abstract:
    BACKGROUND: In Pompe disease, glycogen deposition results in an augmentation of blood flow and abnormal remodeling, with resultant weakening of the arterial walls, which may result in pathologic dilatation of the cerebral arteries. This complication is rare in patients with late-onset Pompe disease, but it has not been well-described in infantile-onset Pompe disease. The effect of enzyme replacement therapy on this process is not known. METHODS: We examined clinical and imaging data on two patients who exhibit cerebrovascular arteriopathy: a 14-year-old boy with infantile-onset Pompe disease on enzyme replacement therapy and a 23-year-old woman with late-onset Pompe disease who was also receiving enzyme replacement therapy. RESULTS: Our 14-year-old patient exhibits cerebrovascular arteriopathy, primarily proximal and vertebrobasilar, while the 23-year-old patient has a more diffuse pattern. The 14-year-old patient is unique because cerebral dolichoectasias have not been described in infantile-onset Pompe disease. The 23-year-old patient is notable given the age and history of enzyme replacement therapy since age 15 years. CONCLUSIONS: Dilative cerebral arteriopathy in infantile-onset Pompe disease is novel and similarly atypical is the diffuse vascular dilation seen in our young patient with late-onset Pompe disease, both receiving enzyme replacement therapy. We should be cognizant of the risk of cerebrovascular disease in Pompe disease regardless of the disease variant and enzyme replacement therapy status.
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