Table 1: Preoperative baseline mBMEP parameters.

VariablesFL Lt (1)HL Lt (2)FL Rt (3)HL Rt (4)

Amplitude (μV)3770 ± 15183300 ± 11913590 ± 19904410 ± 1964
Latency (ms)4.0 ± 0.47.4 ± 0.53.9 ± 0.47.2 ± 0.6

(1) versus (3) and (2) versus (4): not statistically significant (Mann-Whitney -test).