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Eosinophilic pneumonia: a case of daptomycin induced lung injury
Vaishnavi Raman1, Isha Chaudhary2, Sean Shieh1
1Medstar Health, Maryland, United States.
Abstract:
Eosinophilic pneumonia is a category of lung diseases characterized by an increased number of eosinophils in alveolar spaces and interstitium. Acute cases are often caused by fungal infections, parasites, drugs or toxins and can present with respiratory failure. Daptomycin has been identified as one of the rare causes of acute eosinophilic pneumonia. We describe a case of an elderly man on daptomycin for MRSA endocarditis treatment who presented to the hospital with fevers and dyspnea within two weeks of daptomycin initiation. As an inpatient, he developed an increasing oxygen requirement necessitating intensive care unit management. Daptomycin cessation improved his symptoms and he was placed on a steroid taper. These findings suggested a diagnosis of daptomycin-induced eosinophilic pneumonia. However, the patient deteriorated and eventually passed away despite resuscitative efforts. This case highlights the importance of prompt identification of eosinophilic pneumonia, its potential severity and the need for more exploration regarding the timing of corticosteroid taper. This in turn will inform more effective approaches to this condition in the future.
Insights
Daptomycin can cause acute eosinophilic pneumonia, a severe lung condition. Prompt diagnosis and management are crucial, though outcomes can be poor, necessitating further research into treatment strategies.
Area of Science:
- Pulmonology
- Infectious Diseases
- Pharmacology
Background:
- Eosinophilic pneumonia involves eosinophil accumulation in lung tissues.
- Acute cases can stem from infections, parasites, drugs, or toxins, potentially leading to respiratory failure.
- Daptomycin is a rare but identified cause of acute eosinophilic pneumonia.
Observation:
- A case report details an elderly male patient treated with daptomycin for MRSA endocarditis.
- The patient developed fevers and dyspnea shortly after daptomycin initiation, requiring ICU admission due to escalating oxygen needs.
- Initial improvement was noted after daptomycin cessation and initiation of a steroid taper.
Findings:
- The clinical presentation suggested daptomycin-induced eosinophilic pneumonia.
- Despite treatment, the patient's condition deteriorated, leading to a fatal outcome.
- This case underscores the potential severity of drug-induced eosinophilic pneumonia.
Implications:
- Highlights the critical need for early recognition of eosinophilic pneumonia.
- Emphasizes the potential for severe outcomes even with prompt intervention.
- Calls for further investigation into optimal corticosteroid tapering strategies for drug-induced lung injury.
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