Rhodococcus equi: pulmonary cavitation lesion in patient infected with HIV cured by levofloxacin and rifampicin.
Rhodococcus equi: pulmonary cavitation lesion in patient infected with HIV cured by levofloxacin and rifampicin.
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马红球菌:左氧氟沙星和利福平治愈的艾滋病毒感染者的肺空洞病变。
DOI:
10.1097/00002030-200207050-00026
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发表时间:
2002
期刊:
影响因子:
--
通讯作者:
G. Carosi
中科院分区:
文献类型:
--
作者:
F. Moretti;E. Quiros;S. Casari;P. Viale;A. Chiodera;G. Carosi
A study conducted in our clinic before highly active antiretroviral therapy (HAART) was available [1] demonstrated that antibiotic treatment is usually unable to eradicate Rhodococcus equi infection in HIV-infected patients, although a clinical improvement could be observed in most cases. A case of R. equi pneumonia in an HIV patient resolved by lobectomy and continuous antibiotic therapy concomitant with HAART has recently been described in the February issue of this journal [2]. However, there is no standard treatment protocol for pulmonary or systemic R. equi infections, and careful and repeated culture and susceptibility testing during treatment is required to determine acquired resistance.A 34-year-old man was admitted to our clinic suffering from fever (39 C), thoracic pain irradiating to the right shoulder and cough lasting for one month, when he was discovered to be HIV infected. He was a heavy smoker and had used intravenous drugs until a few years ago. Chest X-ray showed an alveolar infiltrate with a cavitary lesion (diameter 2 cm) near the lingula of the right lung (Fig. 1), which was confirmed by a tomographic control and showed the contact of the cavity with the pleura. Laboratory studies of blood showed the following values: white blood cell count: 5.9/ml; haemoglobin: 11.2 g/dl; red blood cell count: 3300/ml; erythrocyte sedimentation rate: 109; C-reactive protein: 30.9; CD4 lymphocytes: 21 cells/mm 3; and HIV-RNA level: 91 000 copies/ml. Routine cultures of the blood, faecal and sputum specimens yielded R. equi, which was only susceptible to ciprofloxacin, aminoglucosides, imipenem, rifampin and vancomycin. Bronchial brushing and bronchoscopy confirmed the microbiological diagnosis and showed a granulomatous inflammation with caseating necrosis.