[Changes of distortion product otoacoustic emissions in the patients with iron deficient anaemia].
OBJECTIVE
To observe the changes of distortion product otoacoustic emissions (DPOAE) in the patients with iron deficient anaemia (IDA).


METHODS
Sixty cases who were taken health physical examination at ZhaBei District Central Hospital were divided into two groups, the normal group (30 cases, 60 ears) and the IDA group (30 patients, 60 ears) depend on the results of examination of hemoglobin and serum ferritin. The changes of DPOAEs at 4 kHz were observed.


RESULTS
A statistically significant decrease of DPOAE threshold level compared with the normal controls was seen at 4 kHz in the patients with IDA.


CONCLUSIONS
The decreased threshold level of DPOAE at 4 kHz in IDA patients should relate to sensorineural hearing loss directly.
Shen
Feng
F
Department of Otolaryngology, Jingan District Central Hospital, Shanghai, 200040, China.
Sun
Aihua
A
Ye
Qing
Q
Bi
Jie
J
Chen
Jue
J
Zhang
Ting
T
Chen
Zhenxin
Z
Fang
Zhen
Z
D000293:Adolescent; D000328:Adult; D000368:Aged; D018798:Anemia, Iron-Deficiency / Q000097:blood / Q000503:physiopathology*; D001301:Audiometry, Pure-Tone; D001309:Auditory Threshold; D016022:Case-Control Studies; D003051:Cochlea / Q000503:physiopathology; D005260:Female; D005293:Ferritins / Q000097:blood; D006454:Hemoglobins / Q000032:analysis; D006801:Humans; D008297:Male; D008875:Middle Aged; D017084:Otoacoustic Emissions, Spontaneous; D055815:Young Adult
D006454:Hemoglobins; D005293:Ferritins