Vladimír Bzdúch, Katarína Brennerová, Darina Behúlová
Lysosomal storage disorders are a group of hereditary metabolic disorders that are most often caused by reduced or absent activity of specific lysosomal enzymes. From historical point of view enzyme replacement therapy (ERT) was proposed by Christian de Duve in 1964. Since 1991 Gaucher disease type I (non-neuronopathic) was the first lysosomal storage disease to be successfully treated by enzyme replacement therapy (ERT). This led to attempt to use ERT in the other lysosomal diseases. First patient in Slovakia with lysosomal storage disease was treated by ERT in 1999. She suffered from Gaucher diseases type 1 and therapy was very successful. On the basis of this 20th anniversary of such therapy in Slovakia we present case report of first patient and her sister. It was very important step for developing such treatment for other patients with lysosomal diseases in Slovakia.