01872caa a2200217   4500008004100000022001400041100002200055245007000077260000900147270013200156270003000288300001400318490002400332520107000356653006701426700002701493700002101520700002001541773005001561856004301611210629s9999    xx            000 0 und d  a1809-4864  aPrashanth Prabhu  0aEffect of Blood Group on Ultrahigh Frequency Auditory Sensitivity  c2018  aDepartment of Audiology, All India Institute of Speech and Hearing, Naimisham Campus Manasagangothri, Mysore, Karnataka, India   mprashanth.audio@gmail.com  a364–367  vVolume  22  Issue 4  aIntroduction: Individuals with blood group O are reported to have reduced otoacoustic emissions (OAEs) compared with individuals with different blood groups.Objective:The present study attempted to determine if the blood group has any effect on high-frequency auditory sensitivity using ultrahigh-frequency audiometry and ultrahigh-frequency distortion product otoacoustic emissions (DPOAEs).Methods:High-frequency thresholds and high-frequency DPOAEs were measured in 60 individuals with normal hearing and different blood groups.Results:The results of the study showed that there was a significant reduction in DPOAE amplitude for individuals with blood group O compared with individuals with other blood groups. However, there was no significant difference in ultrahigh-frequency thresholds across the blood groups.Conclusion:This reduction in OAE amplitude may be attributed to a lower number of healthy outer hair cells in individuals with blood group O. Further studies on larger groups of individuals are essential for a better generalization of the results.  anoise-induced hearing loss; ABO blood group system; audiometry  aAkhila Chandrashekhar   aJanani Cariappa   aNayanika Ghosh   aInternational archives of otorhinolaryngology  uhttps://doi.org/10.1055/s-0037-1613711