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Nocardia and Lungs in COPD: Beyond Immuno-deficiencies
Claudia Maggiorelli1, Irene Di Pierro, Carmen Manta
11Pulmonology and Respiratory Intensive Care Unit, S. Donato Hospital , Arezzo , Italy.
Abstract:
Nocardia is an opportunistic pathogen and Pulmonary Nocardiosis (PN) occurred in more than half of the cases in subjects with immuno-suppressed status. COPD is one of the most common comorbidity observed in immuno-competent patients with PN. In this perspective study, we report the clinical patterns, the outcomes and the comorbidities of all cases of PN admitted in our Unit in the years 1999-2012. Among 6545 patients admitted in our Unit during the study time, we identified PN in 4 patients. COPD was coexistent in 3 out of 4 cases. A delayed time for the diagnosis was observed. Clinical-radiological improvement was detected in all cases after one month of specific anti-PN therapy. According to our experience, PN is a rare disease that should be suspected also in immuno-competent patients. COPD is confirmed to be a risk factor for the development of PN, probably due to reduced respiratory defenses and prolonged steroid therapy.
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