Your Digestive System

What is the Difference Between GSID and CSID?

Genetic Sucrase-Isomaltase Deficiency vs. Congenital Sucrase-Isomaltase Deficiency

The terms “Congenital Sucrase-Isomaltase Deficiency (CSID)” and “Genetic Sucrase-Isomaltase Deficiency (GSID)” are exactly alike in every respect and both refer to the same disorder. The term “congenital” means present at birth, and most congenital disorders are discovered in infancy or early childhood. In recent years, many patients with CSID have been diagnosed in their teens or adulthood. CSID shares the same symptoms as many other gastrointestinal disorders, so these patients may have been misdiagnosed because they were never tested for CSID. Because the term “congenital” suggests an early childhood diagnosis, it is more accurate to call a disorder involving deficient sucrase activity Genetic Sucrase-Isomaltase Deficiency. The term Genetic Sucrase-Isomaltase Deficiency implies that the disorder may be diagnosed in infancy, in childhood, in teenage years or in adulthood.