House-Brackmann and Yanagihara Grading Scores in Relation to Electroneurographic Results in the Time Course of Bell's Palsy

1998 ◽  
Vol 118 (6) ◽  
pp. 783-789 ◽  
Author(s):  
Mats Engström, Lars Jonsson, Margar
2002 ◽  
Vol 111 (7) ◽  
pp. 616-622 ◽  
Author(s):  
Naohito Hato ◽  
Hisanobu Kisaki ◽  
Nobumitu Honda ◽  
Hirotaka Takahashi ◽  
Shingo Murakami ◽  
...  

Herpes simplex virus type 1 (HSV-1) has been proven to be a cause of Bell's palsy; however, the underlying pathophysiology of the facial nerve paralysis is not fully understood. We established a mouse model with facial nerve paralysis induced by HSV-1 infection simulating Bell's palsy and investigated the pathophysiology of the facial nerve paralysis. The time course of the R1 latency in the blink reflex tests paralleled the recovery of the facial nerve paralysis well, whereas electroneurographic recovery tended to be delayed, compared to that of the paralysis; these responses are usually seen in Bell's palsy. On histopathologic analysis, intact, demyelinated, and degenerated nerves were intermingled in the facial nerve in the model. The similarity of the time course of facial nerve paralysis and the electrophysiological results in Bell's palsy and the model strongly suggest that the pathophysiological basis of Bell's palsy is a mixed lesion of various nerve injuries.


1974 ◽  
Vol 7 (2) ◽  
pp. 407-409
Author(s):  
W. Hugh Powers
Keyword(s):  

2012 ◽  
Vol 73 (S 02) ◽  
Author(s):  
L. M. Marques ◽  
J. Pimentel ◽  
P. Escada ◽  
G. Neto D'Almeida

Sign in / Sign up

Export Citation Format

Share Document