Three cases of hospitalized Legionella pneumonia patients successfully treated with lascufloxacin
Abstract
Legionella pneumonia is one of the major causes of severe pneumonia, in which treatment delay might lead to a poor prognosis. Therefore, as far as possible, early diagnosis and treatment of Legionella pneumonia is essential. Regarding the antimicrobials for Legionella pneumonia, fluoroquinolones, such as levofloxacin, or macrolides, such as azithromycin (AZM), are recommended in Japan and other countries. Lascufloxacin (LSFX), the newest fluoroquinolone developed in Japan, has been in use in daily clinical practice since January 2020. However, there are only few reports of Legionella pneumonia cases treated with LSFX. Here, we report three cases of hospitalized Legionella pneumonia patients that were successfully treated using LSFX. All three patients were admitted to the medical ward on admission, although one patient was subsequently transferred to the ICU for mechanical ventilatory management due to worsening of the pneumonia on day 3. All patients improved and were discharged following LSFX treatment (the patient admitted to the ICU was treated using LSFX + AZM combination therapy) without any severe adverse events. LSFX might be considered to be the first antibiotic choice for Legionella pneumonia, similar to levofloxacin. However, further data regarding the treatment of Legionella pneumonia cases using LSFX are needed to evaluate its efficacy and safety.
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