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Year : 2011  |  Volume : 17  |  Issue : 2  |  Page : 58-62

Etiopathogenesis of lower motor neuron facial palsy: Our experience

Departments of ENT and Plastic Surgery, Government Medical College, Kozhikode, Kerala, India

Correspondence Address:
M Venugopal
Department of ENT, Government Medical College, Trivandrum, Kerala
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0971-7749.91037

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Introduction : Facial nerve is the seventh cranial nerve having important functions, and hence its paralysis can lead to a great deal of mechanical impairment and emotional embarrassment. Etiopathogenisis of lower motor neuron facial palsy is still a diagnostic challenge and the literature has shown varying results pertaining to the same. This study was designed to sketch out the prevalence of disease causation and the profile of peripheral facial palsy patients presenting to the ENT department at Government Medical College, Kozhikode. Materials and Methods : A prospective study involving 60 patients with facial nerve palsy, presented during the period November 2006 to October 2008, was undertaken. Detailed analysis of etiopathogenesis, age and sex distribution, severity of palsy, anatomical levels and follow up for 1 year was done. Results : Trauma, both iatrogenic and non-iatrogenic, was the most widespread etiology in our study, followed by Bell's palsy which is described as the commonest cause in world literature. Majority of the patients belonged to the age group of 31-40 years and there was slight male preponderance Non-iatrogenic facial palsy following road traffic accident was common in young males, while females dominated in infectious palsies. Majority of cases reported with grade III palsy, followed by grade IV. High-resolution computed tomography of temporal bone is exceedingly sensitive in delineating facial canal. Conclusions : Data analysis shows similarity with the existing literature except a novel trend towards amplified incidence of trauma surpassing Bell's palsy. The need for comprehensive history taking, meticulous clinical examination, judicious investigations and appropriate intervention is substantiated by the study.

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