Sound-induced facial synkinesis following facial nerve paralysis.

Facial synkinesis (or synkinesia) (FS) occurs frequently after paresis or paralysis of the facial nerve and is in most cases due to aberrant regeneration of (branches of) the facial nerve. Patients suffer from inappropriate and involuntary synchronous facial muscle contractions. Here we describe two cases of sound-induced facial synkinesis (SFS) after facial nerve injury. As far as we know, this phenomenon has not been described in the English literature before. Patient A presented with right hemifacial palsy after lesion of the facial nerve due to skull base fracture. He reported involuntary muscle activity at the right corner of the mouth, specifically on hearing ringing keys. Patient B suffered from left hemifacial palsy following otitis media and developed involuntary muscle contraction in the facial musculature specifically on hearing clapping hands or a trumpet sound. Both patients were evaluated by means of video, audio and EMG analysis. Possible mechanisms in the pathophysiology of SFS are postulated and therapeutic options are discussed.

Grau de percepção e incômodo quanto à condição facial em indivíduos com paralisia facial periférica na fase de seqüelas / Degree of perception and discomfort regarding facial condition in subjects with peripheral facial paralysis in sequelae stage

OBJETIVO: Correlacionar a auto-avaliação da condição facial do paciente, o grau de incômodo quanto às seqüelas e de prejuízo em atitudes diárias com os dados encontrados na avaliação fonoaudiológica. MÉTODOS: Participaram da pesquisa 29 indivíduos, de ambos os sexos, média de idade de 46 anos, com média de 5,9 sessões de fonoterapia. Realizou-se avaliação fonoaudiológica da simetria e da movimentação da face e verificou-se a presença de sincinesias e contraturas por meio de instrumento publicado e padronizado. Além disso, realizou-se uma entrevista por meio de perguntas fechadas que permitiram a graduação da opinião do paciente quanto à sua própria face e influência desse problema em suas atividades sociais e profissionais. RESULTADOS: Encontrou-se concordância quanto à auto-avaliação do paciente e a avaliação fonoaudiológica (p=0,0029), porém essa correlação não esteve presente em pacientes com menos de três sessões de fonoterapia. Não houve correlação significante entre o grau de sincinesia/contratura e o grau de incômodo referido pelo paciente, assim como o prejuízo em atividades sociais e profissionais não foi associado ao grau de paralisia, sincinesia, ou contratura. No entanto, houve correlação fraca com tendência à significação (r=-0,3250/p=0,085) quando comparou-se a auto-avaliação do paciente com o grau de prejuízo referido. CONCLUSÕES: A autopercepção da condição facial nem sempre é concordante entre o profissional e o paciente, sendo que essa concordância aumenta em pacientes com maior tempo de terapia. Por outro lado, o impacto da condição facial na vida do paciente parece não depender do grau das seqüelas.

PURPOSE: To correlate the self-evaluation of patients with facial paralysis regarding their facial condition, the level of sequelae discomfort and the negative consequences in daily activities, with the results found in clinical assessment. METHODS: Twenty-nine subjects of both genders, with average age of 46 years and an average of 5.9 therapy sessions participated in this study. A clinical evaluation of facial symmetry and movement was carried out, verifying the presence of synkinesis and contractures using a facial grading system proposed by a standardized and published instrument. Moreover, an interview with closed questions was carried out, in order to measure the patient's opinion regarding how his own face influences his professional and social activities. RESULTS: There was an accordance regarding the patient's self evaluation and the clinical assessment (p=0,0029), but this correlation was not found in patients with less than three sessions of the speech therapy. No significant correlation was found between the degree of synkinesis/contracture and the level of discomfort reported by the patient. Furthermore, the negative consequences in professional and social activities were not associated to the degree of facial paralysis, synkinesis or contracture. However, there was a weak correlation tending to significance (r=-0,3250/p=0,085) when the self evaluation was compared to the reported negative consequences. CONCLUSIONS: The patient's self perception of the facial condition is not always in agreement with the professional's assessment, although this agreement increases in patients with longer intervention periods. On the other hand, the impact of the facial condition in the patient's life does not depend on the degree of sequelae.