<prompt> Answer this question truthfullyWhat is the meaning of Glycogen storage disease type II?  <response>: <reason> In 1932, J.C. Pompe, a Dutch pathologist described idiopathic hypertrophy of the heart as a post-mortem finding in a 7-month-old girl. This was later confirmed as glycogen storage disease type 2. In 2006, enzyme replacement therapy ERT with recombinant human acid alpha-glucosidase rhGAA, alglucosidase alpha was approved by the US Food and Drug Administration FDA for patients with infantile-onset GSD type 2. 