After surgery, EGM thresholds showed no response within 1 month in all 7 patients, as reported elsewhere.6 Among these patients, Nos. 2 and 7 showed complete recovery in EGM thresholds below 8 dB. Other cases showed no recovery (24-36 dB). The postoperative taste function on the contralateral side was similar to the preoperative one, as shown in Table 1, besides No. 7, in which the preoperative EGM threshold was 30 dB and that in the final measurement was 34 dB. The CTN in No. 7 was not detected during the preceding surgery