Feasibility of aerosol drug delivery to sleeping infants: a prospective observational study
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OBJECTIVES: Delivery of inhaled medications to infants is usually very demanding and is often associated with crying and mask rejection. It has been suggested that aerosol administration during sleep may be an attractive alternative. Previous studies in sleeping children were disappointing as most of the children awoke and rejected the treatment. The SootherMask (SM) is a new, gentle and innovative approach for delivering inhaled medication to infants and toddlers. The present pilot study describes the feasibility of administering inhaled medications during sleep using the SM. DESIGN: Prospective observational study. SETTING: Out patients. PARTICIPANTS: 13 sleeping infants with recurrent wheezing who regularly used pacifiers and were <12 months old. INTERVENTION: Participants inhaled technetium99mDTPA-labelled normal saline aerosol delivered via a Respimat Soft Mist Inhaler (SMI) (Boehringer-Ingelheim, Germany) and SM + InspiraChamber (IC; InspiRx Inc, New Jersey, USA). OUTCOMES: The two major outcomes were the acceptability of the treatment and the lung deposition (per cent of emitted dose). RESULTS: All infants who fulfilled the inclusion criteria successfully received the SM treatment during sleep without difficulty. Mean lung deposition (±SD) averaged 1.6±0.5% in the right lung. CONCLUSIONS: This study demonstrated that the combination of Respimat, IC and SM was able to administer aerosol therapy to all the sleeping infants who were regular pacifier users with good lung deposition. Administration of aerosols during sleep is advantageous since all the sleeping children accepted the mask and ensuing aerosol therapy under these conditions, in contrast to previous studies in which there was frequent mask rejection using currently available devices. CLINICAL TRIAL REGISTRY: NCT01120938.
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