Gram-negative bacillary meningitis therapy. Polyradiculitis following intralumbar aminoglycoside administration

Area of Science:

• Neuroscience
• Infectious Diseases
• Pharmacology

Background:

• Gram-negative bacillary meningitis poses significant risks, particularly in immunocompromised individuals, those with head trauma, or post-neurosurgery patients.
• Aminoglycoside antibiotics, including gentamicin and tobramycin, are established treatments for meningitis when administered systemically or into the cerebrospinal fluid (CSF).

Observation:

• A case study involved an acromegalic woman diagnosed with Klebsiella meningitis, who received both intralumbar and parenteral gentamicin and tobramycin sulfate.
• The patient exhibited objective signs of adhesive arachnoiditis and presented with symptoms indicative of polyradiculitis.

Findings:

• Discontinuation of aminoglycoside therapy led to a noticeable improvement in the patient's neurological symptoms.
• Reinitiation of aminoglycoside treatment resulted in a relapse of the neurological symptoms, suggesting a direct link to the medication.

Implications:

• Polyradiculitis is identified as a potential complication associated with the intralumbar administration of aminoglycoside antibiotics.
• This finding underscores the importance of monitoring for neurological adverse effects during aminoglycoside treatment, especially via intrathecal routes.