title: Clinical features, outcomes, and cerebrospinal fluid findings in adult patients with central nervous system (CNS) infections caused by varicella-zoster virus: comparison with enterovirus CNS infections.
abstract: Varicella-zoster virus (VZV) is known to be associated with central nervous system (CNS) infections in adults. However, the clinical characteristics of VZV CNS infections are not well characterized. The aim of this study was to compare the clinical manifestations, outcomes, and cerebrospinal fluid (CSF) findings in patients with VZV CNS infections with those in patients with enterovirus (EV) CNS infections. This retrospective cohort study was performed at a 2,700-bed tertiary care hospital. Using a clinical microbiology computerized database, all adults with CSF PCR results positive for VZV or EV that were treated between January 1999 and February 2013 were identified. Thirty-eight patients with VZV CNS infection and 68 patients with EV CNS infection were included in the study. Compared with the EV group, the median age in the VZV group was higher (VZV, 35 years vs. EV, 31 years; P = 0.02), and showed a bimodal age distribution with peaks in the third and seventh decade. Encephalitis was more commonly encountered in the VZV group (VZV, 23.7% vs. EV, 4.4%; P = 0.01). The median lymphocyte percentage in the CSF (VZV, 81% vs. EV, 36%; P < 0.001) and the CSF protein level (VZV, 100 mg/dl vs. EV, 46 mg/dl; P < 0.001) were higher in the VZV group. Compared with patients with EV CNS infection, patients with VZV CNS infection developed encephalitis more often and exhibited more intense inflammatory reaction. Nevertheless, both VZV and EV CNS infections were associated with excellent long-term prognosis.
authors.affiliation: Department of Infectious Diseases, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea.
authors.forename: Hyo-Lim
authors.initials: HL
authors.lastname: Hong
authors.forename: Eun Mi
authors.initials: EM
authors.lastname: Lee
authors.forename: Heungsup
authors.initials: H
authors.lastname: Sung
authors.forename: Joong Koo
authors.initials: JK
authors.lastname: Kang
authors.forename: Sang-Ahm
authors.initials: SA
authors.lastname: Lee
authors.forename: Sang-Ho
authors.initials: SH
authors.lastname: Choi
mesh_terms: D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D002555:Cerebrospinal Fluid / Q000737:chemistry* / Q000166:cytology* / Q000821:virology; D015331:Cohort Studies; D018792:Encephalitis, Viral / Q000453:epidemiology / Q000473:pathology* / Q000821:virology*; D004770:Enterovirus / Q000302:isolation & purification; D004769:Enterovirus Infections / Q000473:pathology* / Q000821:virology; D005260:Female; D006562:Herpes Zoster / Q000473:pathology* / Q000821:virology; D014645:Herpesvirus 3, Human / Q000302:isolation & purification; D006801:Humans; D008214:Lymphocytes / Q000276:immunology; D008297:Male; D011506:Proteins / Q000032:analysis; D012189:Retrospective Studies; D016896:Treatment Outcome; D055815:Young Adult
chemical_list: D011506:Proteins
keywords: central nervous system infection; enterovirus; varicella-zoster virus