الفهرس 
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Abstract
Bell’s palsy is acute, unilateral, idiopathic, peripheral facial nerveparalysis, it is one of the most common neurologic disorders affecting the cranialnerves. Patients with facial paralysis can have impaired interpersonalrelationships and may experience profound social distress, depression, andsocial alienation, for this reasons early management is necessary to hasten therecovery process and minimize the risk of complications. This study aimed to compare between value of Facial Nerve Antidromic Evoked Potential andBlink reflex in prognosis of patients with early Bell’s palsy . This study included 30 patients withearly diagnosed unilateral Bell’spalsy,the patients were divided into three groups (mild ,moderate ,severe) according to Yanagihara grading system.All the patients were subjected to the following: 1-Demographic data collection :(Name, Age, Sex and Occupation). 2-History taking :(Complaint ,present history and duration of illness). 3-Examination: Local facial nerve assessment (facial muscle function was assessed clinically at onset of illness,after 4 months ,after 6 months using the stennert system score) 4-Electrophysiological study in the form of Facial Nerve Antidromic Evoked Potential and blink reflex,both done at onset of illness ,after 4 months and after 6 months. The results of this study couldsummarized as follows: 1- There was statistically significant difference between different grades of facial paralysis as regard the electrophysiological findings( FNAEP,blink reflex) at onset of illness ,after 4 and 6 months. 2- There was statistically significant difference between different grades of facial recovery outcome regarding the electrophysiological findings ( FNAEP , blink reflex) after 4 and 6 months. 3- There was close relationship between LD and AD and clinical recovery rate(CRR) after 4 and 6 months. 4- There was close relationship between blink reflex and clinical recovery rate(CRR) after 4 and 6 months 5- Latency difference(LD) and Amplitude difference( AD)are both helpful in detecting prognosis of bell’s palsy. 6- Facial Nerve Antidromic Evoked Potential(FNAEP) is more sensitive than blink reflex in detecting the prognosis of bell’s palsy. The results of this study leads to the following conclusions: 1-Different grades of facial paralysis showed significant improvement in electrophysiological studies (FNAEP and blink refex) at end of study , the severity of clinical grades of paresis was statistically significantly decreased in the three groups at the end of the study but the improvement was more superior in the patients with mild and moderate facial nerve paralysis than severe cases. 2-FNAEP is more accurate than blink reflex in detecting prognosis in patientswith early Bell’s palsy.