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Mixed bacterial meningitis: a complication of ventriculo- and lumboperitoneal shunts
Abstract:
Infectious complications of ventriculo- and lumboperitoneal shunts in two patients are presented. Cerebrospinal fluid infection due to aerobic and anaerobic enteric flora was characteristic of each case. Both infections occurred several months after shunt surgery and were associated with colonic perforation by the distal limb of the peritoneal catheter. These cases emphasize this unusual hazard of peritoneal shunts and demonstrate methods for diagnosis and effective therapy.
Insights
Infectious complications from ventriculoperitoneal and lumboperitoneal shunts can arise from colonic perforation months after surgery. Prompt diagnosis and therapy are crucial for managing these rare but serious shunt infections.
Area of Science:
- Neurosurgery
- Infectious Diseases
- Gastroenterology
Background:
- Ventriculoperitoneal (VP) and lumboperitoneal (LP) shunts are common treatments for hydrocephalus and other cerebrospinal fluid (CSF) disorders.
- While generally safe, shunt systems can be complicated by infections, posing significant risks to patients.
Observation:
- Two cases of infectious complications following VP/LP shunt placement are detailed.
- In both instances, infections were characterized by cerebrospinal fluid (CSF) contamination with enteric flora (both aerobic and anaerobic).
- These infections manifested several months post-operatively and were linked to perforation of the colon by the distal peritoneal catheter.
Findings:
- Colonic perforation by the distal shunt catheter is an identified, albeit uncommon, cause of shunt-related infection.
- The causative agents were enteric bacteria, indicating a direct or indirect breach from the gastrointestinal tract to the CSF system.
- The presented cases highlight the diagnostic challenges and therapeutic strategies for this specific type of shunt complication.
Implications:
- Highlights an unusual but critical hazard associated with peritoneal shunts, emphasizing the need for vigilance in long-term patient monitoring.
- Underscores the importance of considering gastrointestinal complications in the differential diagnosis of late-onset shunt infections.
- Demonstrates effective diagnostic approaches and therapeutic interventions for managing shunt infections secondary to colonic perforation.