The detection of MBL-producing P. aeruginosa and MRSA in CF patients confirms that antimicrobial resistance patterns should be always kept under surveillance. Moreover hygiene regulations in CF clinics should prevent a further spread of resistant bacterial strains.
A 14-year-old boy developed acute transverse myelitis with severe abdominal pain, bladder dysfunction, weakness, and sensory loss of the lower extremities. Magnetic resonance imaging revealed a segmental expanded central edema affecting parts of the spinal cord, including the caudal medulla oblongata. Antibody response to Mycoplasma pneumoniae was negative in microparticle agglutination assays (1:40 in the acute serum and 1:160 in the convalescent serum) and complement fixation tests (1:20 and 1:10). However, analysis of acute-phase serum revealed a specific IgA and IgG response but no IgM response. Detection of M. pneumoniae in the cerebrospinal fluid by nested polymerase chain reaction and in nasopharyngeal aspirate by culture confirmed an M. pneumoniae infection. Treatment with doxycycline (100 mg daily) was started on the second day after admission to the hospital and continued for 14 days; the patient recovered completely and was discharged 20 days after onset of the disease, with no signs of neurological deficits.
The use of SOD significantly reduced the colonization and pneumonia and the total charge for antibiotics. The length of stay in the ICU, duration of ventilation, and mortality were similar. No resistance was observed. Staphylococcus aureus was selected by SOD in some patients and the clinical relevance needs further observation.
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