Introduction: Pompe disorder is a rare glycogen storage disorder that is due to a deficiency of the lysosomal alpha glycosidase enzyme. The heart, skeletal muscle, liver and nervous system can be affected from the lysosomal glycogen accumulation. Symptoms such as muscle weakness, hypotony, myopathy and respiratory failure develop. The onset may be at the infantile, adolescent or adult period depending on the enzyme level. The CK level is high in almost all patients. The diagnosis is made with enzyme level measurement and genetic analysis. Case report: We present a family with Pompe disease consisting of the asymptomatic mother and two siblings who presented with muscle weakness and respiratory failure and who had been followed-up with a diagnosis of muscular dystrophy for a long time.
Key words: ompe disease, acid maltase deficiency, myopathy
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