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Salmonella empyema an unusual infection - A case report
Carina Rôlo Silvestre1, André Nunes1, Ricardo José Cordeiro1
1Pulmonology Department, Centro Hospitalar do Oeste, Rua Dr. Aurélio Ricardo Belo, 2560-364, Torres Vedras, Portugal.
Abstract:
Pleuropulmonary Samonella infections are very rare and are associated with high mortality. We present a case of empyema to Salmonella in an 83-year-old male patient, with uncontrolled hematological disease. The patient presented with a one-week history of fever, productive cough with purulent sputum, dyspnea, and pleuritic pain localized to the right hemithorax. He denied having nausea, vomiting, and diarrhea. No history of smoking or respiratory diseases. Chest imaging showed a right loculated pleural effusion with adjacent parenchymal consolidation. Blood test revealed anemia without leukocytosis with elevated C-reactive protein (36.2 mg/dL). A chest tube was placed, with drainage of purulent fluid and empiric antibiotic therapy with ceftriaxone and clindamycin was started. Pleural fluid and blood cultures were positive for Salmonella serotype Enteritidis. The stool cultures were negative. Due to slow improvement, clindamycin was suspended and ciprofloxacin was initiated. The patient showed clinical and laboratory improvement. After seven weeks of antibiotic therapy, he presented with negative blood cultures and significant imaging improvement. The patient was discharged. This case describes a positive outcome in an unusual infection with a high mortality caused by non-typhoid Salmonella.
Insights
Pleuropulmonary Salmonella infections, though rare and typically fatal, can be successfully treated. This case highlights effective management of Salmonella Enteritidis empyema in an elderly patient with hematological disease.
Area of Science:
- Infectious Diseases
- Pulmonology
- Internal Medicine
Background:
- Pleuropulmonary Salmonella infections are uncommon and carry a high mortality rate.
- Empyema, a serious infection of the pleural space, can be caused by various pathogens.
Observation:
- An 83-year-old male with uncontrolled hematological disease presented with symptoms suggestive of severe respiratory infection.
- Clinical presentation included fever, productive cough, dyspnea, and right-sided pleuritic pain, with chest imaging revealing a loculated pleural effusion and consolidation.
- Blood tests showed anemia and elevated C-reactive protein, while pleural fluid and blood cultures confirmed Salmonella serotype Enteritidis.
Findings:
- The patient was treated with chest tube drainage and a course of antibiotics, initially ceftriaxone and clindamycin, later switched to ciprofloxacin due to slow improvement.
- Clinical and laboratory parameters improved following the adjustment of antibiotic therapy.
- The patient achieved negative blood cultures and significant radiological improvement after seven weeks of treatment, leading to discharge.
Implications:
- This case demonstrates a successful outcome in a rare and typically lethal condition, emphasizing the importance of prompt diagnosis and tailored antimicrobial therapy.
- Effective management of Salmonella-induced empyema is possible even in immunocompromised patients.
- Highlights the potential for non-typhoidal Salmonella to cause severe pleuropulmonary infections.
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