Eosinophilic Pneumonia Induced by Daptomycin

Area of Science:

• Pulmonology
• Infectious Diseases
• Pharmacology

Background:

• Daptomycin is a crucial antibiotic for Gram-positive infections.
• Rare adverse pulmonary reactions can occur with daptomycin therapy.
• Daptomycin-induced eosinophilic pneumonia (DIEP) is a serious, albeit uncommon, complication.

Observation:

• A teenage patient with nasopharyngeal cancer developed dyspnea and eosinophilia.
• Symptoms emerged during daptomycin treatment for a catheter-related infection.
• Radiological imaging revealed findings consistent with eosinophilic pneumonia.

Findings:

• The case highlights a distinct immune response to daptomycin, causing pulmonary inflammation.
• Diagnosis involves clinical presentation, lab tests (peripheral eosinophilia), and imaging.
• Bronchoalveolar lavage may reveal eosinophilic infiltration.

Implications:

• Clinicians must consider DIEP in patients with respiratory issues and daptomycin exposure.
• Prompt daptomycin discontinuation is the primary treatment.
• Corticosteroids may be necessary for severe cases of daptomycin-induced lung injury.