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Pompe Disease 

Pompe Disease
Chapter:
Pompe Disease
Author(s):

Ans T. van der Ploeg

and Pascal Laforêt

DOI:
10.1093/med/9780199972135.003.0055
Page of

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date: 20 July 2019

Pompe disease, also named acid maltase deficiency and glycogen storage disease type II (GSDII), is a rare autosomal recessive disorder caused by the deficiency of the glycogen-degrading lysosomal enzyme acid α‎-glucosidase. The clinical spectrum of this disease is broad, varying from a lethal infantile-onset generalized myopathy including cardiomyopathy, to late-onset slowly progressive muscle weakness mimicking limb-girdle muscular dystrophy. Respiratory insufficiency is a frequent complication and the main cause of death. The prognosis of Pompe disease has changed considerably with the use of enzyme replacement therapy using recombinant acid α‎-glucosidase (alglucosidase alfa), which has been widely available since 2006. Improvements in survival and major motor achievements can be observed in patients with infantile forms, and recent studies demonstrate improvement of walking distance and stabilization of pulmonary function in late-onset forms. A longer-term study of the safety and efficacy of ERT, based on data gathering across the complete spectrum of Pompe disease via national or international patient registries, is needed in order to formulate more precise guidelines for treatment.

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