Early Prognostic Diagnosis of Bell's Palsy
1991 Volume 1991 Issue Supplement51 Pages 102-110
Details
1991 Volume 1991 Issue Supplement51 Pages 102-110
Among cases of Bell's palsy (diagnosed within 2 weeks after onset, complete remission and more than 6 months' management in our out-patient-department),287 cases regularly followed up by electroneuronography (ENoG), percutaneous nerve excitability test (NET), stapedial reflex (SR), lacrimation (LAC), and electrogustometry (EGM) were evaluated. Furthermore, the relationship between the prognosis and the above laboratory data within 2weeks after onset were analyzed statistically.
The prognosis could be predicted by only ENoG for over 90% cases. When ENoG was over or equal to 15%,99.1% of cases showed complete recovery. Unfortunately, other examinations did not reveal data helpful in determining the prognosis of Bell's palsy owing to broad variations. When ENoG was less than 15%, the following examinations were useful for those patients with ENoG <15%, that is, the difference between right and left was less than 3.5 mA on NET and early appearance on SR. The cases showing normal EGM or LAC also showed a good prognosis.
