[Bilateral peripheral facial paralysis and Guillain-Barré syndrome].

The Guillain-Barrè syndrome is a polyneuropathy of acute onset that initially tends to produce motor damage of the lower limbs, albumin-cytological dissociation in cerebrospinal fluid and electrophysiological findings suggestive of demyelination. This entity produces a wide variety of symptoms, including damage to the facial nerve in as many as half of all episodes, which means that this syndrome should be considered in the differential diagnosis of facial palsy, particularly bilateral and synchronous cases. In a review of six cases of Guillain-Barrè syndrome in which bilateral facial palsy occurred at some point, a history of immediate infection was confirmed in five, mainly related to Herpesvirinae and Campylobacter. One case began with bilateral palsy, whereas palsy appeared almost simultaneously with the rest of the symptoms in the other cases. High protein levels without cells in cerebrospinal fluid and electrophysiological patterns of slow facial nerve conduction were confirmed in every patient. Treatment with intravenous immunoglobulins resolved all episodes in less than six months. We conclude by reiterating the need for awareness of this syndrome in every case of peripheral VIIth nerve palsy, especially bilateral cases, although the associated symptoms were not very useful, if at all useful.