In the present study, this analysis included the time needed for the facial nerve suprastapedial lesion to transform to infrastapedial lesion, as assessed by the acoustic reflex determination, and the time needed for the HB scale score to reach 1, indicating recovery in the groups of patients diagnosed with borreliosis, Bell's palsy and HSV-1 infection.
A higher grade of facial palsy was found in 24 patients with absent acoustic reflex (suprastapedial nerve lesion) as compared with the group with acoustic reflex preserved (infrastapedial nerve lesion) on both initial and last visit.