Study design (if review, criteria of inclusion for studies)
Randomised, double-blind, parallel group trial
Participants
Males = 93 Females = 71 n = 164
Interventions
HS 7% bd vs isotonic saline 0.09% bd for 48 weeks
Outcome measures
Mean change in FEV1 and FVC at 4, 12, 36 and 48 weeks. QOL and pulmonary exacerbations
Main results
Fifty-two patients (32 males), with a mean age of 16.2 (range 7-36) years completed the study. There was no difference in baseline characteristics between the two groups. Following 2 weeks of treatment, there was a significant improvement from baseline in FEV1 of 15.0 +/- 16.0% (mean +/- SD) in patients treated with HS, compared with a change of 2.8 +/- 13% in those on IS therapy (P = 0.004). Furthermore, there was a subjective improvement in the effectiveness of chest physiotherapy as reported by those using HS (P = 0.02). The treatment was well tolerated.
Authors' conclusions
in patients with CF, ultrasonically nebulized hypertonic saline improves lung function in a way similar to that reported for human recombinant DNase when inhaled over a 2 week period. Nebulized saline also enhances the perception of effectiveness of chest physiotherapy.