Overview
Purulent pericarditis is a severe, life-threatening infection of the pericardium characterized by the accumulation of purulent fluid, often caused by Streptococcus pneumoniae and other pathogens 12.Diagnosis
Clinical Presentation: Subtle signs like fever, chest pain, and hemodynamic instability may precede overt cardiac tamponade 2.
Imaging: Echocardiography is crucial for detecting pericardial effusion and tamponade 23.
Laboratory Tests: Elevated inflammatory markers and blood cultures to identify the causative organism 12.
Pericardiocentesis: Essential for both diagnostic fluid analysis and therapeutic drainage 3.Management
Antibiotics: Empiric broad-spectrum antibiotics tailored based on culture and sensitivity results 12.
Pericardial Drainage: Early pericardiocentesis to relieve tamponade and remove purulent material 3.
Intrapericardial Fibrinolytic Therapy: Consideration of streptokinase infusion in conjunction with drainage to prevent reaccumulation of effusion 3.
Supportive Care: Management of hemodynamic instability, including inotropic support and monitoring for arrhythmias 3.Special Populations
Pediatrics: Purulent pericarditis can occur in previously healthy children, often linked to skin infections like paronychia 2.
Immunocompromised Patients: Increased susceptibility to infections such as those from skin and soft tissue trauma 1.Key Recommendations
Early Pericardiocentesis and Empiric Antibiotic Therapy: Initiate promptly to manage tamponade and target suspected pathogens (Evidence: Strong 3).
Consider Intrapericardial Fibrinolytic Therapy: In conjunction with drainage to prevent pericardial reaccumulation, particularly in severe cases (Evidence: Moderate 3).
Incorporate Bloodstream Infection in Differential Diagnosis: Especially when pneumococcal pericarditis is suspected, given potential origins from skin and soft tissue infections 1 (Evidence: Expert opinion).References
1 Yamaguchi H, Nagasaki K, Kobayashi H. Purulent Pericarditis Due to Pneumococcal Bacteremia Caused by Acupuncture: An Autopsy Case Report. Internal medicine (Tokyo, Japan) 2023. link
2 Bansal N, Walters HL, Kobayashi D. Purulent Pericarditis Due to Paronychia in a 16-Month-Old Child: A Nail-Biting Story. World journal for pediatric & congenital heart surgery 2020. link
3 Ustünsoy H, Celkan MA, Sivrikoz MC, Kazaz H, Kilinç M. Intrapericardial fibrinolytic therapy in purulent pericarditis. European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery 2002. link00258-0)