Test Retest Repeatability of Contralateral Inhibition of Transient Evoked Otoacoustic Emissions

Abstract

The test retest repeatability of transient evoked otoacoustic emission (TEOAE) was assessed for single probe-fit and multiple probe-fit modes in 30 male participants. In single probe-fit mode inhibition of TEOAEs amplitudes were measured twice without altering the position of the probe. In multiple probe-fit mode inhibition magnitudes were measured across different days. The global TEOAE amplitude and amplitude inhibition were measured in both the modes. High reliability was found for TEOAE amplitude for both modes. However, reliability estimates were less for inhibition magnitudes. Inhibition in the single probe-fit mode had higher reliability than the multiple probe-fit mode. Amplitude inhibition had the highest reliability and hence this measure of medial olivocochlear reflex (MOCR) should be considered for all clinical interpretations.