caa a22 4500 386346534 CHVBK 20180307111813.0 cr unu---uuuuu 161130e198909 xx s 000 0 eng 10.1017/S0022215100110242 doi S0022215100110242 pii (NATIONALLICENCE)cambridge-10.1017/S0022215100110242 Contralateral auditory brainstem response abnormalities in acoustic neuroma [Elektronische Daten] Contralateral Auditory Brainstem Response (ABR) findings in a series of 79 patients with unilateral acoustic neuroma are presented. Sixty-four patients (81 per cent) had a normal contralateral ABR, thirteen (16.4 per cent) had latency abnormalities contralaterally and in two patients (206 per cent) no consistent responses could be recorded despite good hearing. Abnormalities in the contralateral ABR were analysed and five patients had abnormal III-V interwave intervals, in seven patients the I-III intervals were abnormal and in one patient, only the fifth wave was present and of abnormal latency. The tumour size was assessed by computed axial tomography (CT) and the relationship between tumour size and contralateral ABR findings established. Large tumours (>2.5 cm.) were associated with contralateral ABR abnormalities in 25.6 per cent of the patients, medium tumours (1.0-2.5 cm.) with ABR abnormalities in 14 per cent and there were no abnormalities in the small group (intracanalicular). The implications for interpretation of ABR recordings contralateral to an acoustic neuroma are discussed in relation to brainstem compression and its effect on the wave generator sites. Copyright © JLO (1984) Limited 1989 Moffat D. A. Cambridge Baguley D. M. Cambridge Hardy D. G. Cambridge Tsui Y. N. Cambridge The Journal of Laryngology & Otology Cambridge University Press 103/9(1989-09), 835-838 0022-2151 103:9<835 1989 103 JLO https://doi.org/10.1017/S0022215100110242 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0022215100110242 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Moffat D. A. Cambridge NATIONALLICENCE 700 1- Baguley D. M. Cambridge NATIONALLICENCE 700 1- Hardy D. G. Cambridge NATIONALLICENCE 700 1- Tsui Y. N. Cambridge NATIONALLICENCE 773 0- The Journal of Laryngology & Otology Cambridge University Press 103/9(1989-09), 835-838 0022-2151 103:9<835 1989 103 JLO CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge