European Journal of Pediatrics

, Volume 174, Issue 4, pp 449–458 | Cite as

Clinical course and sequelae for tick-borne encephalitis among children in South Moravia (Czech Republic)

  • Lenka Krbková
  • Hana Štroblová
  • Jana Bednářová
Original Article
First Online:
Received:
Revised:
Accepted:

Abstract

This study of 170 children in the Czech Republic examines the clinical course and sequelae for tick-borne encephalitis. Evaluated were demographic and epidemiological data, signs and symptoms at admission, clinical course during hospital stay and laboratory findings. Cerebrospinal fluid was analysed for white blood cells, protein, impairment of blood–cerebrospinal fluid (CSF) barrier and tick-borne encephalitis virus (TBEV)-specific antibodies. Subjective complaints and objective neurological deficits were investigated. Tick bites were reported in 74 % of the children. The illness had a biphasic clinical course in 58 % of cases. The second phase was characterized by headache in 98 %, high fever in 86 % (more than 38.5 °C), vomiting in 64 % and meningeal signs in 92 % of children. Meningitis (77 %) dominated over meningoencephalitis (13 %). Inflammatory changes in CSF were found in 90 % of children. Immunoglobulin M (IgM) antibodies against TBEV in serum were found early in the infection in 99 %. IgM positivity lasted up to 1,126 days. Neurocognitive abnormalities were found in 19 (11 %) of children. Acquired aphasia, lasting tremor of the upper extremities, speech impairment, inversion of sleep and wakefulness, abnormal hyperkinetic movements and vertigo were found to be permanent but not progressing. Severe sequelae persisted in two children (1 %) while in three (2 %) were classified as mild or moderate.

Conclusion: Tick-borne encephalitis in children has a benign course with minimal sequelae. Meningitis with biphasic course is the prevalent involvement and the duration of IgM antibodies in serum and index of positivity are not decisive for postencephalitic disorders.

Keywords

Tick-borne encephalitis Children Cerebrospinal fluid Neurological sequelae 

Abbreviations

CSF

Cerebrospinal fluid

CT

Computer tomography

EEG

Electroencephalograph

ELISA

Enzyme-linked immunosorbent assay

HGA

Human granulocytic anaplasmosis

FSME

Frühsommer Meningoencephalitis (Tick-borne encephalitis)

ICU

Intensive care unit

IgM

Immunoglobulin M

IgG

Immunoglobulin G

LNB

Lyme neuroborreliosis

MRI

Magnetic resonance imaging

Pos

Positive

SAS

Statistical analysis software

TBE

Tick-borne encephalitis

TBEV

Tick-borne encephalitis virus

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Notes

Acknowledgments

We thank Michal Kyr for statistical analysis of all data and physicians Lenka Klapacova and Iva Capovova who contributed data for this study.

Conflict of interest

The authors declare that they have no conflict of interest and that the study was not sponsored.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Lenka Krbková
    • 1
  • Hana Štroblová
    • 2
  • Jana Bednářová
    • 2
  1. 1.Department of Children’s Infectious Diseases, Faculty of Medicine and University HospitalMasaryk UniversityBrnoCzech Republic
  2. 2.Department of MicrobiologyUniversity HospitalBrnoCzech Republic

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