Original Research Article
Year: 2016 | Month: February | Volume: 3 | Issue: 2 | Pages: 18-23
A Study to Predict Hearing Loss in Patients Undergoing Hemodialysis by Using DPOAE
S K Singh1, Rahul Kurkure2, Suresh Mokamati3, J R Galagali4
1Professor, Department of ENT, Armed Forces Medical College, Pune-411040.
2OIC ENT Department, MH Shillong, Meghalaya-793001.
3Resident, Department of ENT, Armed Forces Medical College, Pune-411040.
4Senior Advisor, Department of ENT, Command Hospital (Southern Command), Pune-411040.
Corresponding Author: Suresh Mokamati
Background: Chronic renal failure (CRF) is characterized by gradually progressive loss of renal function. Incidence of sensorineural hearing (SNHL) loss in patients with chronic renal failure and on regular haemodialysis ranges from 20 to 75%. This study was done to compare the effectiveness of distortion product otoacoustic emissions (DPOAE) in early detection of Haemodialysis associated hearing loss as compared to pure tone audiometry (PTA).
Methods: Single Center, prospective study over a 2 year period.50 subjects were evaluated for hearing before undergoing haemodialysis and after 3rd and 5th session of haemodialysis. The patients were evaluated for hearing by PTA and DPOAE.
Results: There was a significant difference in mean PTA thresholds and DPOAE amplitudes before and after 3 and 5 sessions of haemodialysis. Furthermore, patients' ears with normal PTA thresholds also had decreased DPOAE amplitudes.
Conclusion: DPOAEs seem to be more sensitive to incipient cochlear damage than behaviour thresholds in monitoring renal patients. Sensorineural hearing loss especially in high frequencies is frequent in patients under Haemodialysis.
Keywords: haemodialysis, otoacoustic emissions, pure tone audiometry.