BET 1: Efficacy of different techniques using a metered-dose inhaler with Spacer to relieve symptoms in children with acute asthma.

A shortcut review was carried out to establish which inhaler with spacer technique provides the greatest improvement in symptoms in children with acute asthma. Four relevant papers were identified for inclusion using the reported search strategy. The author, date and country of publication; group studied; study type; relevant outcomes; results and study weaknesses of these papers are tabulated. It is concluded that a 'tidal breathing' technique, with a minimum of three breaths per inhaler activation, is likely equivalent in efficacy to a 'single breath and hold technique', and easier for a breathless child to perform.