Oral, inhaled, and intravenous antibiotic choice for treating pulmonary exacerbations in cystic fibrosis
Pediatric Pulmonology,  Clinical Article

Wagener JS et al. – Clinicians treat the majority of pulmonary exacerbations (PExs) with oral antibiotics, particularly in younger, healthier patients. Pulmonary function improves with antibiotic therapy, however, PExs are associated with lung function deterioration over time.

Methods
  • The authors used 2003–2005 data from the Epidemiologic Study of Cystic Fibrosis to examine antibiotic treatment and the immediate and long–term lung function change associated with clinician reported PExs.

Results
  • A total of 45,374 PExs were reported in 13,194 unique patients.
  • Most PExs (73%) were treated with oral antibiotics, while 39% were treated IV and 24% were treated with inhaled antibiotics.
  • The likelihood of non–IV versus IV antibiotic treatment was associated with the patient's age, stage of lung disease, and magnitude of lung function drop prior to the PEx.
  • Following treatment, the average improvement in the FEV1 was 3.4 ± 12.2% predicted with a greater (5.1 ± 12.7% predicted) improvement following IV antibiotic treatment than with non–IV treatment (2.0 ± 11.6% predicted).
  • When the best FEV1 from the year before was compared with 180 days following the PEx there was an average fall of 3.8 ± 10.5% predicted with little difference observed between antibiotic treatment routes.
  • Patients with only one exacerbation during the 3–year study had a similar loss of lung function to patients with no reported exacerbations.

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