Aim-To determine whether asthmatic children who present to hospital with hypoxia perceive breathlessness less well than non-hypoxic presenters. Methods-A total of 27 children aged 5-16 years (mean age 10) admitted with acute asthma had recordings of oxygen saturation (SaO 2 ), clinical score, forced expiratory volume in one second (FEV 1 ), and breathlessness score (HMP) at admission and at 5, 10, 24, 48, and 72 hours after admission. Those defined as hypoxic (SaO 2 <92%) at admission were compared with a non-hypoxic group. Conclusions-Asthmatic children who present to hospital hypoxic tend to perceive themselves as less breathless than non-hypoxic children. This may predispose to a future life threatening attack. (Arch Dis Child 2000;83:325-329)
Results-Twelve