Related Experiment Video
Updated: May 10, 2026

Inducing Meningococcal Meningitis Serogroup C in Mice via Intracisternal Delivery
Published on: November 5, 2019
Intrathecal Colistin Induced Chemical Meningitis in a Case of Multi-Drug Resistant Acinetobacter baumannii Meningitis
Aysun Benli1, Serap Şimşek-Yavuz1, Haluk Eraksoy1
1Department of Infectious Diseases and Clinical Microbiology, İstanbul University School of Medicine, İstanbul, Turkey.
Abstract:
The possibility of encountering multi-drug resistant Gram-negative bacteria is higher in nosocomial meningitis. These bacteria are clinically important because of their higher mortality rate, and colistin is almost the only treatment option in resistant strains. However, intrathecal administration of colistin can result in chemical meningitis. We reported a case with chemical meningitis during the intravenous sulbactam plus colistin and intrathecal colistin therapy for multi-drug resistant Acinetobacter baumannii meningitis. Cerebrospinal fluid findings of the patient improved after discontinuation of intrathecal colistin therapy. This reversible complication may occur during intrathecal therapy. Discontinuation of intrathecal therapy or reducing the antibiotic dose will be the most appropriate approach to manage such cases.
Insights
Intrathecal colistin for resistant Gram-negative meningitis can cause chemical meningitis. Discontinuing this treatment improved cerebrospinal fluid findings, suggesting dose reduction or cessation as management strategies.
Area of Science:
- Neuroscience
- Infectious Diseases
- Pharmacology
Background:
- Nosocomial meningitis presents a significant challenge due to multi-drug resistant Gram-negative bacteria.
- Colistin is a critical treatment for infections caused by these resistant strains.
- Intrathecal colistin administration is sometimes necessary but carries risks.
Observation:
- A case of chemical meningitis occurred during treatment for multi-drug resistant *Acinetobacter baumannii* meningitis.
- The patient received intravenous sulbactam plus colistin and intrathecal colistin.
- Cerebrospinal fluid (CSF) findings improved upon cessation of intrathecal colistin.
Findings:
- Intrathecal colistin therapy can precipitate reversible chemical meningitis.
- This complication is characterized by changes in cerebrospinal fluid parameters.
- Discontinuation or dose reduction of intrathecal colistin is a viable management approach.
Implications:
- Clinicians should be vigilant for chemical meningitis during intrathecal colistin therapy.
- Early recognition and management, such as drug cessation, can reverse this complication.
- This highlights the need for careful dosing and monitoring in neuroinfectious disease treatment.
Related Concept Videos
Mechanism of Antibiotic Resistance in MRSA
Viral Meningitis
Clinical Significance of Antibiotic Resistance
Bacterial Meningitis I: Introduction
Bacterial Meningitis II: Pathophysiology
Brain Abscess l: Introduction

