Unilateral Auditory Neuropathy Caused by Cochlear Nerve Deficiency

Table 1

Audiological characteristics and radiological findings in patients with CND.

Subject	Age (years)	Gender	Affected ear	PTA	Tym type	EOAE	ABR	CM	Risk factors for SNHL	Other Ear diseases	CN
1	23	M	Left	NR	A	Present	NR	Present	None	None	Absent
2	14	M	Right	97 dB HL	A	Present	Present*	Present	parotitis	None	Small
3	4	M	Right	NA	A	Present	NR	Present	None	None	Absent
4	7	F	Left	NR	B	Absent	NR	Present	None	OME	Absent
5	10	F	Left	NR	A	Present	NR	Present	None	None	Absent
6	2	F	Left	NA	A	Present	NR	Present	None	None	Absent
7	3	M	Right	NA	A	Present	NR	Present	None	None	Absent
8	5	M	Left	NR	A	Present	NR	Present	None	None	Absent

PTA: pure tone average, Tym: tympanogram, EOAE: evoked otoacoustic emissions, ABR: auditory brainstem response, SNHL: sensorineural hearing loss, CN: cochlear nerve, NR: no response, and NA: not available. *ABR threshold was 97 dB nHL; OME: otitis media with effusion.