Romano-Ward Syndrome

**Definition:** A form of long QT syndrome that is without congenital deafness. It is caused by mutation of the KCNQ1 gene which encodes a protein in the VOLTAGE-GATED POTASSIUM CHANNEL.

**Tree numbers:** - C14.280.067.565.720 - C14.280.123.625.720 - C16.131.240.400.715.720 - C23.550.073.547.720

**Synonyms:** - Long QT Syndrome 1 - Ward-Romano Syndrome - Long QT Syndrome Type 1 - Ventricular Fibrillation with Prolonged QT Interval