The effect of coronary artery bypass grafting procedure on audiovestibular system

Aim: Coronary artery bypass grafting surgery may affect end-organ perfusion. Our aim was to examine the effect of this method on audiovestibular system.Material and Methods: Patients who had CABG were called and invited. Pure tone audiometric test, c-and o-VEMP tests were performed for all participants.Results: The results at 250, 500, 2000 and 4000 Hz differed for the left ears (p=0,013, p=0,045, p=0,028, p=0,045 ) and in the right ears, p13 (p = 0.040) were differentiated among the groups and the p13-n23 amplitude was lower in the bypass group (p=0,013). In the left ear results , p13-n23 amplitude (p= 0.007) and n10-p15 amplitudes (p = 0.006) differed between the groups, and the right ear n10-p15 amplitudes were lower in the bypass group (p = 0,005). Mean n10 (p=0,006) and p15 latency were high in the bypass patients (p= 0,005).Discussion: CBAG may affect balance-connected mechanisms at varied levels and intensity.