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[Treatment of central facial nerve paralysis with electromyography biofeedback and taping of cheek. A controlled clinical trial].

We studied 35 patients with facial palsy after stroke, admitted to a rehabilitation hospital. We examined the patients on admission and after one, two and six months with 1) clinical evaluation of the facial function using a modified House-Brackmann scale, 2) photographs of patients with six different facial expressions; these photos were evaluated by "blinded" observers using the modified House-Brackmann scale, 3) questionnaire about patients emotional reactions to the facial paralysis and 4) facial sensation. No differences were found between a control group of 12 and a group of patients (23) training facial function 2-3 times a week, each session of 15 minutes, with EMG-biofeedback and cheek taped between training sessions. A significant improvement in facial function occurred spontaneously after one month in rehabilitation unit in the total group. After six months 2/3 of the patients had normal facial function or mild dysfunction. Patients with right-sided facial palsy showed a significantly better improvement at six months as compared to patients with left-sided facial palsy. The questionnaire showed that only half of the patients were aware of the asymmetric face. We cannot recommend training with EMG-biofeedback to patients with facial paralysis after stroke. Spontaneous remission is to be expected.