[Magnetic stimulation of the facial nerve: a new testing method].

Magnetic stimulation (MST) is the new method electrodiagnostic testing. The motor nerves are contrally stimulated proximally to the pathology. This technique enables to evaluate the function of the facial nerve immediately after onset. It can also be used to evaluate the function of the facial nerve in Bell's palsy. The technique is absolutely painless. The results suggest that MST provides a sensitive data of evaluation of facial palsy and will be a very valuable prognostical test.