Clinical and Pathogenic Subgroups in Pediatric Lyme Neuroborreliosis
Overview
This study of 190 children with Lyme neuroborreliosis (LNB) identified meningitis and isolated cranial neuropathy (iCN) as the most common clinical presentations. Distinct clinico-pathogenic subgroups were characterized, with iCN showing localized peripheral nervous system involvement and milder immune responses compared to meningitis and meningoradiculitis, which involved systemic CNS and PNS inflammation.
Background
Lyme neuroborreliosis is a neurological manifestation of Lyme disease caused by Borrelia burgdorferi, affecting both peripheral and central nervous systems. It is a common presentation in children, typically occurring weeks after a tick bite, with symptoms ranging from facial palsy to meningitis. Diagnosis relies on neurological signs, cerebrospinal fluid pleocytosis, and intrathecal antibody production, but can be challenging due to variable antibody detectability. Understanding distinct clinical and immunological subgroups in pediatric LNB is essential for improving diagnosis and management.
Data Highlights
Clinical Manifestation
Number of Patients
Percentage (%)
Meningitis
115
60.5
Isolated Cranial Neuropathy (iCN)
55
28.9
Meningoradiculitis
15
7.9
Severe CNS Manifestations (e.g., myelitis, vasculitis)
5
2.7
Facial Palsy
136
71.6
History of Erythema Migrans
33
17.4
Key Findings
Meningitis was the most frequent LNB manifestation (60.5%), followed by isolated cranial neuropathy (28.9%) and meningoradiculitis (7.9%).
Facial palsy occurred in 71.6% of patients, making it the most common specific clinical sign.
Isolated cranial neuropathy patients exhibited lower cerebrospinal fluid inflammation and weaker Borrelia-specific antibody responses compared to meningitis and meningoradiculitis groups.
Intrathecal antibody production targeted primarily VlsE, p41, and OspC antigens, with broader antibody responses observed in blood than in CSF.
Severe CNS manifestations such as acute myelitis and cerebral vasculitis were rare, occurring in 2.7% of cases.
Distinct clinico-pathogenic subgroups suggest iCN represents a localized peripheral nervous system disease, whereas meningitis and meningoradiculitis involve systemic CNS and PNS inflammation.
Clinical Implications
Recognition of distinct LNB subgroups can enhance diagnostic accuracy by correlating clinical presentation with immunological profiles. Patients presenting with isolated cranial neuropathy may require different diagnostic and management approaches due to their localized disease and milder immune response. Awareness of the broad clinical spectrum, including rare severe CNS complications, is important for timely diagnosis and treatment in pediatric patients.
Conclusion
Pediatric Lyme neuroborreliosis presents with diverse clinical and immunological features, with distinct subgroups reflecting different patterns of nervous system involvement. These insights can guide improved diagnostic strategies and tailored management for affected children.
References
University Children's Hospital Zurich Study 2006-2020 -- Characterization of Unique Clinical and Pathogenic Subgroups in Pediatric Lyme Neuroborreliosis
by Semjon Sidorov, Beat M Greiter, Ester Osuna, Annette Hackenberg, Michelle Seiler, Roland Martin, Martina Marchesi, Stefanie von Felten, Adrian Egli, Christoph Berger, Patrick M Meyer Sauteur
A retrospective cohort study of more than 520,000 hospitalized patients found no clinically meaningful improvement in deterioration or mortality with early treatment targeting community-acquired pneumonia.
