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Purulent pericarditis can complicate hydatid disease, particularly cardiac echinococcosis. Recognizing this rare complication is challenging due to its varied presentation.
Area of Science:
- Medicine
- Parasitology
- Cardiology
Background:
- Hydatid disease, caused by Echinococcus tapeworms, can manifest in various organs.
- Cardiac involvement, though rare, presents significant diagnostic and therapeutic challenges.
- Purulent pericarditis is a severe infection of the pericardial sac.
Observation:
- Three cases of purulent pericarditis complicating echinococcosis are presented.
- One case involved a ruptured myocardial hydatid cyst with secondary infection and disseminated germinal membrane.
- Two cases involved infected hepatic hydatid cysts forming a fistula to the pericardium post-surgery.
Findings:
- Echocardiography and surgical findings confirmed the hydatid origin of the pericarditis.
- The diverse origins (myocardial vs. hepatic) highlight the protean nature of cardiac echinococcosis.
- Superinfection of hydatid cysts is a critical pathway to purulent pericarditis.
Implications:
- These cases underscore the importance of considering echinococcosis in patients with purulent pericarditis, especially with hepatic or cardiac history.
- Early recognition and appropriate management are crucial for improving outcomes in this rare but serious complication.
- Further research into diagnostic markers and treatment strategies for cardiac echinococcosis is warranted.
Abstract:
Three patients are described in whom purulent pericarditis arose as a complication of hydatid disease. In one patient a myocardial cyst ruptured into the pericardial cavity and subsequently became superinfected, probably from a coexisting bronchopneumonia. This patient also had widespread intravascular dissemination of germinal membrane. Two patients had echinococcal cysts of the liver, which became infected following surgery. This led to formation of a fistula between the hepatic hydatid and the pericardium, resulting in purulent pericarditis. The cases illustrate the protean nature of echinococcosis, especially the cardiac form, and emphasize the difficulty of recognizing purulent pericarditis as a complication of other conditions.