Abstract IDENTIFICATION of the site of a lesion responsible for the hearing impairment associated with Rh incompatibility has been attempted through both histologic and audiologic studies. The findings from such investigations are contradictory. On one hand, human tissue studies suggest that icteric pigment deposits have resulted in dysfunction of the central auditory system.1 Such observations have led a number of professional workers to suggest that when a hearing loss occurs as a result of an Rh mismatch it is of the central type. In contrast, two investigators who employed a battery of differential audiological measures with a sample of Rh subjects have obtained profiles of results which are most like those seen in the presence of a cochlear lesion.1,2 However, Carhart3 has suggested that these results are actually the product of damage in the cochlear nuclei which cause behavior that: ... mimic cochlear lesions in many respects and which, References 1. Matkin, N.D., and Carhart, R.: Auditory Profiles Associated with Rh Incompatibility , Arch Otolaryng 84:502-513, 1966.Crossref 2. Blakeley, R.: Erythroblastosis and Perceptive Hearing Loss: Responses of Athetoids to Tests of Cochlear Function , J Speech Hearing Res 2:5-15, 1959. 3. Carhart, R.: Probable Mechanisms Underlying Kernicteric Hearing Loss , Acta Otolaryng , (Suppl 221) , 1967. 4. Flower, R.M.; Viehweg, R.; and Ruzicka, W.R.: The Communicative Disorders of Children with Kernicteric Athetosis: I. Auditory Disorders , J Speech Hearing Dis 31:41-59, 1966, p 58. 5. Goldstein, R.: " Electrophysiologic Audiometry ," in Modern Developments in Audiology , J. Jerger (ed.), New York: Academic Press, 1963. 6. Hardy, W., and Pauls, M.: Significance of Problems of Conditioning in GSR Audiometry , J Speech Hearing Dis 24:123-126, 1959, p 126. 7. Goodhill, V.: Rh Child: Deaf or 'Aphasic'? I. Clinical and Pathologic Aspects of Kernicteric Nuclear Deafness , J Speech Hearing Dis 21:407-410, 1956. 8. Rosen, J.: Rh Child: 'Deaf or Aphasic'? IV. Variations in the Auditory Disorders of the Rh Child , J Speech Hearing Dis 21:418-422, 1956. 9. Byers, R.K.; Paine, R.S.; and Crothers, B.: Extrapyramidal Cerebral Palsy with Hearing Loss Following Erythroblastosis , Pediatrics 15:248-254, 1955, p 251. 10. Carhart, R., and Jerger, J.: Preferred Method for Clinical Determination of Pure Tone Thresholds , J Speech Hearing Dis 24:330-345, 1959. 11. O'Neill, J.J., and Oyer, H.J.: " Psychogalvanic Skin Resistance Audiometry ," in Applied Audiometry , New York: Dodd, Mead and Company, Inc., 1966. 12. Doerfler, L., and McClure, C.: The Measure ment of Hearing Loss in Adults by Galvanic Skin Response , J Speech Hearing Dis 19:184-189, 1954. 13. Grings, W.; Lowell, E.; and Rushford, G.: Role of Conditioning in GSR Audiometry with Children , J Speech Hearing Dis 24:380-390, 1959. 14. Perlstein, M.A.: The Late Clinical Syndrome of Posticteric Encephalopathy , Pediat Clin N Amer 7:665-687, 1960. 15. Carhart, R.: "Audiologic Tests: Questions and Speculations," Proceedings of the Conference on Deafness in Childhood, F. McConnel and D. Ward (ed.), Vanderbilt University Press, (to be published).
Archives of Otolaryngology – American Medical Association
Published: Apr 1, 1968