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Published on: February 14, 2011
[Nervous system lesions in patients with ixodid tick-borne borreliosis]
Abstract:
Previous studies indicated that in the Perm Region there are two pathogen species: B. garinii and B. afzelii which cause the disease mainly with neurological and dermatological manifestations. In 1990-1994, in the Perm Region 646 patients with Ixodes tick-borne borreliosis (ITBB), including 535 with erythema migrans, 54 without it, and 57 with late chronic disease were studied. Damages to the central and peripheral nervous systems were detected at all stages of an infectious process. The prevalent clinical manifestations are encephalitis, encephalomyeloradiculoneuropathies, mono- and polyneuropathies. These abnormalities are more frequently formed in patients with its erythema-free type both in the acute period of the disease and in the late period of infection. A varying spectrum of neurological syndromes and their significant incidence determine the resemblance of ITBB in Russia and West Europe. The clinical findings are in good agreement with the results of etiological structural studies of ITBB in the region.
Insights
Ixodes tick-borne borreliosis (ITBB) in Russia
Area of Science:
- Medical Microbiology
- Neurology
- Epidemiology
Context:
- The Perm Region in Russia is endemic for Ixodes tick-borne borreliosis (ITBB).
- Previous etiological studies identified Borrelia garinii and Borrelia afzelii as the primary causative agents.
- ITBB commonly presents with neurological and dermatological symptoms.
Purpose:
- To investigate the clinical manifestations and neurological involvement in patients with Ixodes tick-borne borreliosis (ITBB) in the Perm Region.
- To correlate clinical findings with etiological data and compare ITBB presentation in Russia with Western Europe.
Summary:
- A study of 646 patients with ITBB in the Perm Region (1990-1994) revealed central and peripheral nervous system involvement at all disease stages.
- Prevalent neurological manifestations included encephalitis, encephalomyeloradiculoneuropathies, and neuropathies, particularly in patients without erythema migrans.
- The spectrum and incidence of neurological syndromes in Russian ITBB cases resemble those observed in Western Europe.
Impact:
- Highlights the significant neurological burden of ITBB in the Perm Region.
- Underscores the importance of recognizing diverse neurological presentations, especially in erythema migrans-negative cases.
- Provides valuable epidemiological and clinical data for understanding and managing ITBB in Russia and potentially other regions.
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