• Tumors that press on the auditory nerve can cause a latency increase that is detectable from the scalp by electric response audiometry (BERA). The response delay is best seen by comparing the Jewett wave V, or P5, latencies for the two ears. This interaural latency difference is normally less than 0.2 msec, but was 0.4 msec or greater for 35 acoustic tumor cases and for seven of ten other temporal bone tumors. Acoustic tumor size can be estimated from the amount of latency delay.
(Arch Otolaryngol 103:181-187, 1977)
Weldon A. Selters, Derald E. Brackmann. Acoustic Tumor Detection With Brain Stem Electric Response Audiometry. Arch Otolaryngol. 1977;103(4):181–187. doi:10.1001/archotol.1977.00780210037001
* * Maintenance Notice * *
Maintenance will be performed from 11:00pm CT December 16, 2017 to 4:00pm CT December 17. Please be advised that your site/services may be periodically unavailable during this maintenance window.