Abstract Audiometric tests were administered to 16 patients with intra-axial brain stem lesions. Eight patients showed some audiometric loss in one or both ears. Maximum speech intelligibility (PB) scores were at least 80% in 10 patients. In the remaining, depressed PB maximum performance was found either on both ears or on the ear contralateral to the site of lesion. Performance-intensity (PI) functions for PB words yielded a consistent difference between ears across all intensity levels in nine patients. Performance on synthetic sentence identification (SSI) materials was disporportionately poor for sentences in the presence of ipsilateral competing speech messages (ICM). In the presence of contralateral competing speech messages (CCM), SSI performance generally remained within the normal range. A relatively greater performance deficit for the ICM task than for the CCM task was an important characteristic of brain stem disorder. References 1. Jerger J: Audiological manifestations of lesions in the auditory nervous system . Laryngoscope 70:417-425, 1960.Crossref 2. Jerger J: Auditory tests for disorders of the central auditory mechanism , in Fields WS, Alford BR (eds): Neurological Aspects of Auditory and Vestibular Disorders . Springfield, Ill, Charles C Thomas, 1964, pp 77-93. 3. Parker W, Decker R, Richards N: Auditory function and lesions of the pons . Arch Otolaryngol 87:228-240, 1968.Crossref 4. Liden G: The scope and application of current audiometric tests . J Laryngol Otol 83:507-520, 1969.Crossref 5. Korsen-Bengtsen M: Auditory patterns in diseases of the acoustic nerve, brain stem, and cortex , in Rojskaer C (ed): Speech Audiometry . Odense, Denmark, Second Danavox Symposium, 1970, pp 184-190. 6. Antonelli A, Calearo C, DeMetri T: On the auditory function in brain stem diseases . Int Aud 2:55-61, 1963.Crossref 7. Miller M, Daly J: Cerebellar atrophy simulating acoustic neurinoma . Arch Otolaryngol 85:383-386, 1967.Crossref 8. Shapiro I: Progression of auditory signs in pontine glioma . Laryngoscope 79:201-212, 1969.Crossref 9. Antonelli A: Sensitized speech tests: Results in brain stem lesions and diffusive CNS diseases , in Rojskaer C (ed): Speech Audiometry . Odense, Denmark, Second Danavox Symposium, 1970, pp 130-139. 10. Horrax G: Differential diagnosis of tumors: Primarily pineal, primarily pontile . Arch Neurol Psychiatr 17:179-192, 1927.Crossref 11. Sloan P, Persky A, Saltzman M: Midbrain deafness: Tumor of the midbrain producing sudden and complete deafness . Arch Neurol Psychiatr 49:237-243, 1943.Crossref 12. Eichel B, Hedgecock L, Williams H: A review of the literature on the audiologic aspect of neuro-otologic diagnosis . Laryngoscope 76:1-29, 1966. 13. Jerger J: Diagnostic significance of SSI test procedures: Retrocochlear site , in Rojskaer C (ed): Speech Audiometry . Odense, Denmark, Second Danavox Symposium, 1970, pp 163-175. 14. Owens E: Bekesy tracings and site of lesion . J Speech Hear Dis 29:456-468, 1964. 15. Katz J: Audiologic diagnosis: Cochlea to cortex . Menorah Med J 1:25-38, 1970.Crossref 16. Owens E: Audiologic evaluation in cochlear versus retrocochlear lesions . Acta Otolaryngol (suppl 283) , 1971, p 45. 17. Courville C: Intracranial tumors . Bull Los Angeles Neurol Soc 32:43-46, 1967. 18. Carhart R, Jerger J: Preferred method for clinical determination of puretone thresholds . J Speech Hear Dis 24:330-345, 1959. 19. Jerger J, Speaks C, Trammell J: A new approach to speech audiometry . J Speech Hear Dis 33:318-328, 1968. 20. Jerger J: Diagnostic audiometry , in Jerger J (ed): Modern Developments in Audiology , ed 2. New York, Academic Press, 1973, pp 75-115. 21. Egan J: Articulation testing methods . Laryngoscope 58:955-991, 1948.Crossref 22. Calearo C, Antonelli A: Audiometric findings in brain stem lesions . Acta Otolaryngol 66:305-319, 1968.Crossref 23. Nakamura T: A supplement to auditory findings in cases of brain tumor . Otorhinolaryngol Clin 57:347-365, 1964. 24. Chladek V: Audiometric diagnosis of brain stem lesions . Excerpta Med 11:22, 1969. 25. Greisen O, Rasmussen P: Stapedius muscle reflexes and otoneurological examinations in brain stem tumors . Acta Otolaryngol 70:366-370, 1970.Crossref 26. Parker W, Decker R, Gardner W: Auditory function and intracranial lesions . Arch Otolaryngol 76:425-435, 1962.Crossref 27. Jerger J, Jerger S: Diagnostic significance of PB word functions . Arch Otolaryngol 93:573-580, 1971.Crossref
Archives of Otolaryngology – American Medical Association
Published: May 1, 1974
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