Hearing outcomes of vestibular schwannoma patients managed with 'wait and scan': predictive value of hearing level at diagnosis

TY - JOUR

T1 - Hearing outcomes of vestibular schwannoma patients managed with 'wait and scan': predictive value of hearing level at diagnosis

AU - Stangerup, S-E

AU - Tos, M

AU - Thomsen, J

AU - Caye-Thomasen, P

PY - 2010/5/1

Y1 - 2010/5/1

N2 - Aims: This study aimed to evaluate the predictive value of both hearing level (at various frequencies) and speech discrimination for forecasting hearing outcome after a period of observation, in patients with vestibular schwannoma.Subjects: Over a 33-year period, 1144 patients with vestibular schwannoma were allocated to wait and scan management, with annual magnetic resonance imaging and audiological examination. Two complete pure tone and speech discrimination audiograms were available for 932 patients.Results: The predictive value of initial hearing level better than 10dB for forecasting hearing outcome after observation increased from 59 per cent at 250Hz to 94 percent at 4000Hz. At diagnosis, hearing level of 10dB or better at 4000Hz was found in only 18 of the 932 VS ears, while good speech discrimination was found in 159 patients (17 per cent). Of the latter patients, 138 maintained good hearing after observation.Conclusion: In vestibular schwannoma patients, good high frequency hearing and good speech discrimination at diagnosis are useful tools in predicting good hearing after observation.

AB - Aims: This study aimed to evaluate the predictive value of both hearing level (at various frequencies) and speech discrimination for forecasting hearing outcome after a period of observation, in patients with vestibular schwannoma.Subjects: Over a 33-year period, 1144 patients with vestibular schwannoma were allocated to wait and scan management, with annual magnetic resonance imaging and audiological examination. Two complete pure tone and speech discrimination audiograms were available for 932 patients.Results: The predictive value of initial hearing level better than 10dB for forecasting hearing outcome after observation increased from 59 per cent at 250Hz to 94 percent at 4000Hz. At diagnosis, hearing level of 10dB or better at 4000Hz was found in only 18 of the 932 VS ears, while good speech discrimination was found in 159 patients (17 per cent). Of the latter patients, 138 maintained good hearing after observation.Conclusion: In vestibular schwannoma patients, good high frequency hearing and good speech discrimination at diagnosis are useful tools in predicting good hearing after observation.

U2 - 10.1017/s0022215109992611

DO - 10.1017/s0022215109992611

M3 - Journal article

SN - 0144-2945

VL - 124

SP - 490

EP - 494

JO - The Journal of laryngology and otology. Supplement

JF - The Journal of laryngology and otology. Supplement

IS - 5

ER -