THE IMPORTANCE OF
EARLY DIAGNOSIS OF MUSCLE
EVOKED POTENCIAL IN BELL’S PALSY
Electrophysiological tests may offer a valuable information
in defining the severity of nerve injury and a possible subsequent dysfunction.
For that reasons these tests could be significant prognostic parameters in
Bell’s palsy. The basic aim of our study was to evaluate diagnostic and
prognostic value of muscle evoked potential (MEP) in Bell’s palsy. Our study
included 50 patients with clinical signs of Bell’s palsy, of both sexes, 18 to
80 years of age. We analysed MEP amplitude and MEP latency on the third,
seventh, fourteenth and twenty first day of the onset of palsy. In order to
estimate prognostic values of these electrophysiological parameters we
correlated them with duration of clinical recovery. Our results show that MEP
amplitude and MEP latency are of early prognostic importance in Bell’s palsy. On
the basis of on these electrophysiological parameters it is possible to predict
duration of clinical recovery and outcome of this disease. Acta Medica Medianae
2005; 44(1): 59-64.
Key words: Bell’s palsy, MEP amplitude, MEP latency