The Hearing Outcomes of Cochlear Implantation in Waardenburg Syndrome

Table 2

Characteristics of the patients.

Patient number	Operation age	Clinical classification	The type of hearing loss	Anomalies of the inner ear	Genetic mutation	Hereditary form
1	2 y 3 mon	Type 4	Congenital	None	None	Sporadic
2	1 y 9 mon	Type 1	Congenital	IP2	N.A	Sporadic
3	2 y 2 mon	Type 1	Congenital	IP2	N.A	AD
4	2 y 2 mon	Type 1	Congenital	None	PAX3	AD
5	6 y 3 mon	Type 2	Progressive	None	N.A	AD

AD: autosomal dominant.
Patient one was not tested for all Waardenburg genes.