儿童EB病毒脑炎27例

Clinical study on 27 children with Epstein-Barr virus encephalitis

目的 探讨儿童EB病毒脑炎 (EBE)临床特点及诊断依据。方法 对 2 7例经荧光定量PCR(FQ PCR)及巢氏PCR方法检测脑脊液病毒阳性而确诊的EBE与 2 6例单纯疱疹病毒脑炎 (HSE)患儿临床及脑脊液资料进行回顾性分析。结果 13例患儿FQ PCR检测EB DNA结果为 (2 .82± 2 .0 3)× 10 3 拷贝 ;EBE患儿脑脊液白细胞异常较HSE少 (P <0 .0 5 )。结论 在儿童病毒性脑炎中EBE并不少见 ,约占 10 % ,且多单独出现而非传染性单核细胞增多症 (IM)的一部分。EBE临床表现无特异性 ,脑脊液EB DNA检测是诊断EBE敏感而可靠的方法。

Objective To explore the clinical characteristics and diagnosis of Epstein-Barr(EB) virus encephalitis(EBE) in children. Methods The verification of EBE was based on detection of EBV DNA in cerebrospinal fluid (CSF) by fluorogenic quantitative PCR(FQ-PCR) and Nest-PCR. The clinical and CSF changes of 27 EBE cases and 26 controls were analyzed and compared. Results EB-DNA in CSF by FQ-PCR of 13 cases of EBE was (2.82±2.03)×10 3copies.There was no significant difference in clinical manifestations between EBE and HSE groups, except that WBC in CSF of EBE was lower than those of HSE.Conclusions EBE is not infrequent, about 10 % of encephalitis in children. EBE is always present independently, which is not a complication of infectious mononucleosis(IM).Detection of EBV-DNA in CSF is a sensitive and specific test for diagnosing of EBE. Early treatment may be beneficial to the prognosis of EBE.