Enteroviral meningitis without pleocytosis in children

Ki Wook Yun; Eun Hwa Choi; Doo Sung Cheon; Jina Lee; Chang Won Choi; Hee Hwang; Beyong Il Kim; Kyoung Un Park; Sung Sup Park; Hoan Jong Lee
October 2012
Archives of Disease in Childhood;Oct2012, Vol. 97 Issue 10, p874
Academic Journal
Objectives This study aims to describe the clinical characteristics of enteroviral meningitis in association with the absence of cerebrospinal fluid (CSF) pleocytosis. Design This was a retrospective analysis of databases of patients diagnosed with enteroviral meningitis by CSF reverse transcription-PCR testing. Presence of CSF nonpleocytosis at each age group was analysed by use of the two criteria. Clinical variables were compared with regard to the presence of CSF pleocytosis. Multiple logistic regression analysis was used to identify factors that were associated with CSF pleocytosis. Setting Two hospitals in South Korea, between January 2008 and August 2011. Patients 390 infants and children with enteroviral meningitis. Interventions None. Main outcome measures Proportion of enteroviral meningitis without CSF pleocytosis. Results Among the 390 patients with enteroviral meningitis, 16-18% did not have CSF pleocytosis. In particular, CSF pleocytosis was not present in 68-77% of the neonates with enteroviral meningitis, demonstrating that the proportion of CSF pleocytosis decreased significantly with age ( p<0.001). In multivariate models, younger age (adjusted OR 0.981; 95% CI 0.973 to 0.989), lower peripheral white blood cell count (adjusted OR 0.843; 95% CI 0.791 to 0.899), and shorter interval between onset and lumbar puncture (adjusted OR 0.527; 95% CI 0.315 to 0.882) were associated with the absence of CSF pleocytosis in enteroviral meningitis. Conclusions This study demonstrated high proportion of non-pleocytic enteroviral meningitis in young infants and identified several clinical factors that contributed to the absence of CSF pleocytosis. We suggest that CSF enterovirus PCR testing is likely to detect more cases of enteroviral meningitis, especially in young infants.


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