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Endocarditis caused by Pasteurella multocida
Abstract:
A 51-year-old previously healthy man developed endocarditis with low grade fever, aortic insufficiently and multiple arterial emboli. An atypical strain of Pasteurella multocida was isolated from each of 3 consecutive blood cultures. Protracted treatment with high doses of penicillin G was necessary to eradicate the infection. Following resection of the damaged aortic valves and implantation of a valve prosthesis, the patient recovered. P. multocida should be regarded as one of the possible causes of subacute bacterial endocarditis.
Insights
Pasteurella multocida can cause subacute bacterial endocarditis, a serious heart valve infection. Prompt diagnosis and prolonged antibiotic treatment, along with valve surgery, are crucial for recovery.
Area of Science:
- Infectious Diseases
- Cardiology
- Microbiology
Background:
- Subacute bacterial endocarditis (SBE) typically presents with non-specific symptoms.
- Identifying the causative pathogen is crucial for effective treatment and patient outcomes.
Observation:
- A previously healthy 51-year-old man presented with symptoms of endocarditis, including low-grade fever, aortic insufficiency, and arterial emboli.
- Blood cultures consistently isolated an atypical strain of Pasteurella multocida.
Findings:
- Protracted treatment with high-dose penicillin G was required to eradicate the Pasteurella multocida infection.
- Surgical intervention, involving aortic valve resection and prosthesis implantation, was necessary for the patient's recovery.
Implications:
- This case highlights Pasteurella multocida as a potential cause of subacute bacterial endocarditis, even in immunocompetent individuals.
- Clinicians should consider Pasteurella multocida in the differential diagnosis of SBE, particularly with atypical presentations.
- Aggressive and prolonged antimicrobial therapy, combined with surgical management when indicated, is essential for successful treatment of P. multocida endocarditis.