Autozomálně dominantní
Caused by gain-of-function changes in one copy of KCNH1, a potassium channel in nerve cells. De novo variants are associated with epileptic encephalopathy, while inherited or mosaic variants have been linked to isolated epilepsy or febrile seizures.
Příznaky a projevy
Developmental delay, intellectual disability and epilepsy are common. Thumb and skeletal anomalies, and nail hypoplasia or aplasia, are reported. Facial dysmorphism is also a feature.
Co se diagnózou změní
Seizure management by a neurologist, developmental and educational support. Genetic counselling and parental testing guide recurrence risk.
Analyzované geny
Zahrnuje 2 příbuzných podtypů ↓Skrýt podtypy ↑
- Temple-Baraitser syndrome
- Zimmermann-Laband syndrome 1
