VARICELLA-ZOSTER VIRUS CNS DISEASE CLINICAL FEATURES IN UKRAINIAN PATIENTS. PROSPECTIVE STUDY

Abstract

Introduction: Herpes zoster (HZ), or shingles, is localized disease characterized by unilateral radicular pain and a vesicular rash limited to the area of skin innervated by a single dorsal root or cranial sensory ganglion. Whereas varicella, or chickenpox, results from primary exogenous varicella-zoster virus (VZV) infection, HZ is caused by reactivation of endogenous VZV that has persisted in latent form within sensory ganglia following an earlier episode of chickenpox. The aim: To explore the clinical features, diagnosis, and treatment of CNS injury caused by VZV infection in a prospective single center study from January 2014 to January 2018. Materials and methods: 117 adult patients, among which young women predominated with confirmed VZV infection were analyzed in the study. CSF and blood contents, antibody for herpes zoster M and G classes, and MRI scans have been studied, but the crucial diagnostic sign was the presence of specific viral DNA in the CSF or blood. The main clinical manifestations of the disease were ganglionitis and ganglioradiculoneuritis. Another brain lesion like uveitis, encephalitis and vasculitis were observed also. A clinical case of an unusual course of VZV-infection is given. Results and conclusions: The most common clinical variants of HZ were ganglionitis (69.7%). Cranial localization was observed in 31% of patients, spinal one – in 38.7%, injury to the meninges was found in 16.3% of patients.