Overview
Invasive infections caused by Streptococcus agalactiae (GBS) in nonpregnant adults are rare but can involve the central nervous system (CNS), leading to severe complications such as meningitis, spinal epidural abscess, and ischemic stroke 1.Diagnosis
Clinical Presentation: Neurological symptoms including fever, altered mental status, focal neurological deficits 1.
Laboratory Tests: Blood cultures, cerebrospinal fluid (CSF) analysis, and imaging studies (MRI, CT) to identify CNS involvement 1.
Imaging: MRI or CT scans crucial for detecting abscesses, infarcts, or signs of meningitis 1.
CSF Analysis: Elevated white blood cell count, protein levels, and positive Gram stain/culture in cases of meningitis 1.Management
Antibiotics: Initial empirical therapy with broad-spectrum antibiotics followed by targeted therapy based on susceptibility testing; often includes beta-lactams like penicillin or ceftriaxone 1.
Surgical Intervention: Required for complications like spinal epidural abscess or abscess drainage 1.
Supportive Care: Management of complications such as respiratory support, anticoagulation for embolic events, and rehabilitation 1.Special Populations
Pregnancy: Not directly addressed in the provided abstract 1.
Pediatrics: Focus is on nonpregnant adults; neonatal and maternal infections are noted but not detailed 1.
Elderly: No specific mention of increased risk or unique management in elderly patients 1.
Comorbidities: Patients with underlying conditions like endocarditis may have higher mortality; specific management adjustments not detailed 1.Key Recommendations
Early Identification and Empiric Antibiotic Therapy: Initiate broad-spectrum antibiotics promptly in suspected cases of invasive GBS infection, especially with neurological symptoms (Evidence: Moderate) 1.
Imaging and CSF Analysis for CNS Involvement: Utilize MRI/CT scans and CSF analysis to diagnose CNS complications accurately (Evidence: Moderate) 1.
Surgical Consultation for Abscesses: Consider surgical intervention for patients with confirmed spinal epidural abscess or other localized abscesses (Evidence: Weak) 1.References
1 Oyanguren B, Esteban L, Guillán M, de Felipe A, Alonso Cánovas A, Navas E et al.. Central nervous system involvement in adult patients with invasive infection caused by Streptococcus agalactiae. Neurologia (Barcelona, Spain) 2015. link