The study of distortion products otoacoustic emissions in pseudo-anacousia.
- Author:
Yan WANG
1
Author Information
1. Beijing Institute of Forensic Medicine & Science, Beijing 100040.
- Publication Type:Journal Article
- MeSH:
Audiometry, Pure-Tone;
Auditory Threshold;
Deafness/physiopathology*;
Diagnosis, Differential;
Evoked Potentials, Auditory, Brain Stem;
Forensic Medicine;
Hearing Loss, Sensorineural/physiopathology*;
Humans;
Otoacoustic Emissions, Spontaneous
- From:
Journal of Forensic Medicine
2003;19(1):22-26
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE:To explore the technique that distinguish pseudo-anacousia.
METHODS:60 cases were divided into three groups (normal group, deafness sensorineura group and pretending hearing loss group). They all had been tested by distortion products otoacoustic emissions technique.
RESULTS:(1) The DPOAE incidence of normal group is 94.00%. the DPOAE incidence of deafness sensorineura group is 22.00%. There were significant differences at statistics in DPOAE incidence (P < 0.01). those proved that patients (deafness sensorineura group) were in hearing problem. (2) The DPOAE incidence of pretending hearing loss group is 93.00%, there were no significant differences at statistics in DPOAE incidence between normal group and pretending hearing loss group (P > 0.01), furthermore when behavior threshold is over 50 dBHL, DPOAE incidence is no score.
CONCLUSION:This study shows the technique can distinguish pretending hearing loss. The application of DPOAE can be used as a new tool in cases assessment of clinic forensic medicine.
