Low-dose beta-agonist continuous nebulization therapy for status asthmaticus in children.

The role of continuous nebulization therapy (CNT) with low-dose beta (beta) agonist was retrospectively reviewed in 7 children admitted to a pediatric intensive care unit for treatment of acute severe asthma. Clinical asthma score (CAS), alveolar-arterial oxygen difference (A-aDO2), PaCO2, heart rate, and respiratory rate were recorded at 0, 12, and 24 hr of CNT. All patients had a decrease in CAS at 12 hr (p < 0.008) and decreased A-aDO2, PaCO2, respiratory rate, and heart rate at 24 hr (p < 0.008). No patient required escalation of dosage or additional intervention such as intravenous beta-agonist therapy or mechanical ventilation. No patient experienced significant cardiovascular toxicity or hypokalemia. We conclude that CNT with low-dose beta agonists should be considered in the initial approach to therapy in children with acute severe asthma.