Objectives: Etiologic hypotheses in acute idiopathic peripheral facial palsy (AIPFP) mostly point to an immunologic dysfunction, probably virus-induced. Though various immunologic abnormalities are reported, the problem is still unsolved. We investigated intrathecal immunoglobulin synthesis in AIPFP as a clue for central nervous system (CNS) immunopathology.
Material And Methods: We studied IgG index in 24 patients with AIPFP, 10 with other neurological diseases (OND) and 17 with multiple sclerosis (MS). CSF and serum IgG were measured by radial immunodiffusion technique. IgG index is calculated according to Tibbling's formula.
Results: IgG indexes were abnormal in 6 patients with AIPFP, 3 with OND and 10 with MS patients. There was no statistical difference between AIPFP and OND groups, while marked difference existed between AIPFP and MS groups.
Conclusion: Though IgG indexes were high in 25% of AIPFP patients, statistical analyses did not show any significance of this finding. Lack of a positive result might reflect non-existence of an extensive immunologic pathology within CNS, excluding a very limited one.
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