Oximetry-detected pulsus paradoxus predicts for severity in paediatric asthma.

Objective: To evaluate if qualitative visual detection of pulsus paradoxus (PP) on the pulse oximeter plethysmograph can predict outcomes for children with moderate to severe respiratory distress in a paediatric emergency department (ED).

Design: Prospective cohort study.

Setting: Paediatric ED of a tertiary paediatrics hospital in Singapore.