[Report on clinical positive evidence of the nerve excitability test in facial palsy (author's transl)].

Comparative studies of case controls of Bell's palsy, posttraumatic and postoperative palsies in relation to the clinical positive evidence of the nerve excitability test are demonstrated. While an absolutely parallel reaction of clinical function restitution and electrical excitability is observed in Bell's palsy and in posttraumatic late palsy, on the other hand this congruence will not be observed in postoperative palsies (in intact anatomical conduction of the nerve) in most of the investigated cases. In these cases the clinical restitution of isolated movements of the mimetic muscles has further improved than the excitability test demonstrates. The exact developmental mechanism remains still open.