Three “hidden” video registrations were made of 32 children with CF (6–18 years) nebulising at home. Videos were randomly scored on inhalation technique items using nebuliser-specific checklists and a total score was calculated.
Median nebuliser technique was 91.9% of max score. Nebuliser technique was perfect (score 100%) in 23.3% of the patients and incorrect (score 0%) in 13.3%. Most mistakes were made in the required optimal breathing pattern.
Most CF patients had good nebuliser technique on a day-to-day basis. However, errors observed likely resulted in reduced treatment efficacy and, in 13%, no treatment at all. Regular “real life” evaluation by the CF-team can improve inhaled therapy substantially.