A Rare Case of Primary Pyogenic Ventriculitis in a Patient with Community-acquired Meningitis

Area of Science:

• Neuroscience
• Infectious Diseases
• Critical Care Medicine

Background:

• Pyogenic ventriculitis involves inflammation of the ependymal lining of the cerebral ventricular system, characterized by suppurative fluid.
• While predominantly affecting neonates and children, it can occur in adults, particularly the elderly, often as a healthcare-associated complication.
• Primary pyogenic ventriculitis, though rare, is a critical differential diagnosis in bacterial meningitis cases unresponsive to standard antibiotic treatment.

Observation:

• This case report details a rare instance of primary pyogenic ventriculitis in an elderly diabetic male, stemming from community-acquired bacterial meningitis.
• The patient's condition did not improve with initial antibiotic therapy, necessitating further investigation.

Findings:

• Multiplex polymerase chain reaction (PCR) was instrumental in identifying the causative pathogen.
• Repeated neuroimaging studies were essential for monitoring disease progression and treatment response.
• A prolonged course of antibiotics was administered for successful management.

Implications:

• This case underscores the importance of considering primary pyogenic ventriculitis in the differential diagnosis of bacterial meningitis, especially in elderly or immunocompromised individuals.
• The successful outcome highlights the value of advanced diagnostic tools like multiplex PCR and the necessity of persistent, extended antibiotic therapy.
• Effective management requires a high index of suspicion, prompt diagnosis, and a comprehensive treatment strategy involving repeated assessments and prolonged antimicrobial administration.