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Ventricular sepsis and abdominally related complications in children with cerebrospinal fluid shunts
Insights
Shunt complications in children can arise from infected cerebrospinal fluid (CSF) descending or abdominal bacteria ascending into the shunt system. Prompt treatment, including shunt removal and antibiotics, is crucial for recovery.
Area of Science:
- Pediatric Surgery
- Neurosurgery
- Infectious Diseases
Background:
- Cerebrospinal fluid (CSF) shunts are vital for managing hydrocephalus in children.
- Shunt-related abdominal complications, including sepsis, can be serious and require prompt intervention.
Purpose of the Study:
- To analyze the incidence, modes of development, and outcomes of shunt-related abdominal complications in pediatric patients.
- To identify risk factors and effective treatment strategies for these complications.
Main Methods:
- Retrospective review of 300 pediatric patients undergoing CSF-peritoneal shunt placement or revision over 10 years.
- Analysis of complication types, causative organisms, shunt systems used, and treatment outcomes.
Main Results:
- 15% of patients developed shunt-related abdominal complications, including ventricular sepsis.
- Complications arose from descending infected CSF or ascending abdominal bacteria.
- Raimondi spring-reinforced catheters were associated with a higher rate of severe septic complications (71%).
- Gram-positive bacteria were linked to descending CSF infections, while gram-negative bacteria were associated with ascending infections.
- Appendicitis did not lead to shunt infections.
- Aggressive treatment, including shunt removal and antibiotics, resulted in no deaths.
Conclusions:
- Shunt-related abdominal complications have distinct infectious pathways requiring tailored management.
- Specific shunt systems may carry higher risks for severe sepsis.
- Effective treatment strategies can lead to favorable outcomes, with many patients able to have shunts reestablished.
Abstract:
In a retrospective study of 300 children who underwent placement or revision of cerebrospinal fluid (CSF)-peritoneal shunts during a 10-year period, 15 (5%) developed shunt-related abdominal complications with ventricular sepsis and two developed acute perforated appendicitis. Abdominal complications and associated shunt infections suggested two potential modes of development: (1) descent of contaminated CSF from an infected shunt into the abdomen (CSF ascites--four patients, CSF pseudocysts--four patients, and shunt-induced abscess/peritonitis--five patients); and (2) ascent of bacteria into the shunt from an abdominal source (visceral perforation by the shunt catheter--two patients and acute perforated appendicitis--two patients). Three types of shunt systems were placed during the study period; five of the seven (71%) most serious septic complications were associated with the use of Raimondi spring-reinforced catheters. Bacteria isolated in this series were associated with differing modes of sepsis: those involving descent of bacteria into the abdomen from an infected shunt were predominantly gram-positive, cutaneous microorganisms, whereas those associated with ascent of bacteria from the abdomen into the shunt were mixed, gram-negative intestinal microorganisms. Appendicitis did not result in shunt infections. Aggressive treatment resulted in no operative or complication-related deaths. Removal of the shunt catheter from the abdomen and intravenous antibiotics were essential for eradication of sepsis; laparatomy was required only for cases with suspected peritonitis. In eight of the 17 (47%) patients, reestablishment of CSF-peritoneal shunts was performed after resolution of shunt-related complications. In recent years improved shunting materials and supportive care have reduced the incidence of the most serious of these complications.