Table 1.

Clinical etiology, device: nucleus 24-electrodes.

CI listener	IAZ	IBB	IBF	IBK	IBP	IBU	IAJ	IBR
Etiology	Unknown	Progressive sensori-neural	Hereditory	Hereditory	Hereditory	Bacterial meningitis	Unknown	Progressive sensori-neural
Age (years)	77	45	62	57	70	64	65	56
Use duration (months)	R(49)	R(57)	R(63)	R(48)	R(25)	R(86)	R(84)	R(7)
	L(72)	L(36)	L(45)	L(48)	L(96)	L(79)	L(168)	L(4)
Stimulation rate per channel (Hz)	1200	1800	900	1800	1800	900	1200	900