[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).

METHOD: 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.

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

CONCLUSION

The decreased threshold level of DPOAE at 4 kHz in IDA patients should relate to sensorineural hearing loss directly.