Contralateral suppression of TEOAE in diabetic children. Effects of 1.0 kHz and 2.0 kHz pure tone stimulation--preliminary study

Scandinavian Audiology. Supplementum
G NamyslowskiP Jarosz-Chobot

Abstract

The medial efferent system and its regulating outer hair cell function have not been previously studied in diabetic children. In this study, the group comprised 32 diabetic children, aged 6.0-16.0 years, with diabetes lasting 2.0-9.0 years, with normal tonal and impedance audiometry. A control group consisted of 30 healthy children with similar age and sex distribution. Contralateral stimulation (CS) was performed using 1.0 and 2.0 kHz pure tones on the level of 30 and 50 dB SL. Effects of CS on transient evoked otoacoustic emissions (TEOAE) elicited by click of a level equal to 70 and 60 dB SPL were investigated. Analysis included assessment of TEOAE amplitude and 0.8 kHz frequency bandwidth (0.8-FBW) amplitudes (signal/noise) centred at 1.0; 2.0; 3.0; 4.0; 5.0 kHz. TEOAE-RA recorded for stimulus 80, 70 and 60 dB SPL without CS were decreasing: average values respectively 7.3, 4.7 and 3.9 dB SPL. In the group of diabetic children TEOAE amplitudes, recorded for different click levels without CS, were similar to these recorded in healthy children. It suggested that normal function of the cochlea was preserved, mostly outer hair cells. However, the obtained effects of CS, in comparison with healthy children, were weaker and not s...Continue Reading

References

Apr 1, 1946·The Journal of Comparative Neurology·G L RASMUSSEN

❮ Previous
Next ❯

Citations

Jan 20, 2009·International Journal of Pediatric Otorhinolaryngology·Aslihan Kulekci UgurNebil Goksu

❮ Previous
Next ❯

Related Concepts

Related Feeds

Autoimmune Diabetes & Tolerance

Patients with type I diabetes lack insulin-producing beta cells due to the loss of immunological tolerance and autoimmune disease. Discover the latest research on targeting tolerance to prevent diabetes.