Overview
Meningococcal pericarditis is a rare but severe complication of meningococcal infection characterized by the presence of purulent fluid in the pericardial cavity, often leading to cardiac tamponade 1.Diagnosis
Clinical Presentation: Suspected sepsis progressing to signs of cardiac tamponade 1.
Laboratory Tests: Countercurrent immunoelectrophoresis (CIE) of pericardial fluid positive for meningococcus 1.
Imaging: Echocardiography essential for diagnosis and monitoring fluid reaccumulation 1.Management
Initial Treatment: Pericardiocentesis for immediate relief of tamponade 1.
Antibiotics: Initiate targeted antibiotic therapy (e.g., penicillin G for group B meningococcus) 1.
Chronic Drainage: Use of modified percutaneous catheters for prolonged drainage guided by echocardiography 1.
Duration: Continue antibiotics for an extended period (e.g., additional 10 days post-drainage cessation) 1.Special Populations
Pediatrics: Effective management with percutaneous techniques observed in infants 1.Key Recommendations
Perform pericardiocentesis promptly in cases of suspected meningococcal pericarditis with cardiac tamponade 1 (Evidence: Strong).
Utilize modified percutaneous catheters for chronic pericardial fluid drainage, guided by echocardiography to avoid surgical intervention 1 (Evidence: Moderate).
Extend antibiotic therapy beyond initial pericardiocentesis for at least 10 days post-drainage cessation 1 (Evidence: Expert opinion).References
1 Biancaniello TM, Anagnostopoulos CE, Bernstein HE, Proctor C. Purulent meningococcal pericarditis: chronic percutaneous drainage with a modified catheter aided by echocardiography. Clinical cardiology 1985. link