Question: Is Romano-Ward syndrome inherited ?
Answer: This condition is typically inherited in an autosomal dominant pattern, which means one copy of the altered gene in each cell is sufficient to cause the disorder. In most cases, an affected person inherits the mutation from one affected parent. A small percentage of cases result from new mutations in one of the genes described above. These cases occur in people with no history of Romano-Ward syndrome in their family.
Source: GHR