Refractory atypical trigeminal neuralgia associated with reactivated herpesvirus infection: pathogenetic link and efficacy of combination antiviral therapy
2022
Maltsev, Dmitry | Fedirko, Volodymyr
The purpose of this study is to diagnose herpesvirus infections in refractory atypical trigeminal neuralgia, to assess pathogenetic links, and to explore the efficacy of antiviral treatment. In a prospective controlled study, 95 patients with trigeminal neuralgia received antiviral therapy (valacyclovir + alpha2b-interferon) (experimental group, EG). Other patients refused to receive treatment (control group 1 (CG1), n = 31). Control group 2 (CG2) included 32 healthy individuals of the same age and sex. Herpesvirus infection was diagnosed in blood leukocytes by PCR (Biocom, Russian Federation). Serum concentrations of IgM, IgA and IgG to HSV-1/2, VZV (ELISA, Vector-Best, Russian Federation) were determined. Reactivation of herpesvirus infections was observed in the EG in 87% of cases. The heterogeneity of herpesvirus-associated damage of trigeminal nerves and anatomically related areas of the central nervous system (CNS) has been demonstrated. The treatment applied was effective for herpesvirus infection (77%) and pain (61%) and ineffective for immunity correction (26% of cases). Atypical refractory trigeminal neuralgia is associated with herpesvirus infections that reactivate due to minor immunodeficiencies. Antiviral treatment suppresses herpesviruses and reduces the intensity of pain.
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