末梢性顔面神経麻痺の予後早期診断について

抄録

The prognostic values of several tests of the facial nerve function (electroneurography, nerve excitability test, lacrimation test and stapedial reflex test) in the early stages of facial palsy were investigated in 110 cases of facial palsy. The efficacy of facial nerve decompression was also discussed from the standpoint of the time course of recovery in both surgical and non-surgical cases. Results are summarized as follows.
Electroneurography and the nerve excitability test accurately predicted the outcome of palsy at an early stage. Full recovery of facial palsy could be expected within about one and a half months when the value of electroneurography had reached the level of 60%.
Recovery of surgical cases was a little better than those of non-surgical cases, whose prognosis had been considered to be as poor as the former before treatment. This difference was more distinctly observed in the long term follow-up. With respect to the timing of operation, recovery was clearly better in those operated within the 20th day after the onset of palsy than those operated after the 21th day. Decompression was not very effective in preventing postparetic malfunction.