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Randomized trial of spacers in asthma

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Abstract

Objective

To compare the efficacy of all types of spacers commonly available to children in India.

Methods

150 children 5–14 yr of age with persistent asthma presenting with peak expiratory flow (PEF) <70% of personal best were randomized to receive 200μg salbutamol through one of five spacers: A) 750ml spacer with valve, B) 165ml spacer with valve, C) 250ml spacer without valve, D) 1000ml indigenously made spacer without valve and E) 500ml indigenously made spacer without valve. PEF measurement was repeated 15 minutes later. Children >8 yr old performed spirometry in addition to PEF. Absolute change and percentage improvement of PEF and FEV1 were compared among the groups.

Results

Subjects in all groups had comparable baseline demographic characteristics and PEF. All showed significant improvement in PEF and FEV1 over baseline values. The change in PEF and percentage improvement were comparable among all five groups (p=0.780 and p=0.955 respectively). Likewise change in FEV1 and percentage improvement were also comparable. The five groups showed no difference in efficacy, irrespective of severity of baseline airway obstruction.

Conclusion

The five spacers were equally efficacious for the delivery of bronchodilator in children with moderate persistent asthma presenting with airway obstruction.

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Correspondence to Meenu Singh.

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Dahiya, B., Mathew, J.L. & Singh, M. Randomized trial of spacers in asthma. Indian J Pediatr 74, 631–635 (2007). https://doi.org/10.1007/s12098-007-0112-0

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  • DOI: https://doi.org/10.1007/s12098-007-0112-0

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