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(valved holding chamber)
434 results
  • Valved holding chamber drug delivery is dependent on breathing pattern and device design. [Journal Article]
    ERJ Open Res 2019; 5(1)Csonka P, Lehtimäki L
  • Small children with airway obstruction breathe with very low tidal volumes (V T) and high respiratory rates (RRs). These extreme respiratory patterns affect drug delivery unpredictably through valved holding chambers (VHCs). We compared in an in vitro study the effectiveness of two VHCs, one small (140 mL, Optichamber Diamond) and one large (350 mL, Babyhaler) without facemasks, to deliver salbut…
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