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Pulse oximetry to identify a high-risk group of children with wheezing
L M Rosen1, L G Yamamoto, R A Wiebe
1Department of Pediatrics, University of Hawaii John A. Burns School of Medicine, Honolulo.
Insights
Pulse oximetry effectively assesses children with wheezing in emergency settings. Low initial oxygen saturation levels (OSAT) strongly predict hospitalization needs, guiding timely interventions.
Area of Science:
- Pediatrics
- Emergency Medicine
- Respiratory Illnesses
Background:
- Wheezing is a common pediatric emergency department (ED) presentation.
- Accurate risk stratification is crucial for timely and appropriate management.
Purpose of the Study:
- To evaluate the utility of pulse oximetry in assessing children with wheezing.
- To determine if initial oxygen saturation measurements predict hospitalization needs.
Main Methods:
- Prospective study of 1,101 children with wheezing in a pediatric ED.
- Measurement of initial oxygen saturation (OSAT) upon presentation.
- Analysis of OSAT in relation to hospitalization and need for intervention.
Main Results:
- Mean OSAT was 95.4% in wheezing children versus 98.7% in controls.
- OSAT ≥95% indicated low hospitalization risk.
- OSAT <85% showed a 90% positive predictive value for high hospitalization risk.
Conclusions:
- Pulse oximetry is a valuable tool for risk assessment in pediatric wheezing.
- Initial OSAT can identify high-risk children needing urgent care.
- This supports early, aggressive therapeutic interventions in the ED.
Abstract:
To investigate the value of pulse oximetry in children with wheezing presenting for emergency medical treatment, initial oxygen saturations (OSAT) were measured in 1,101 of 1,235 patients presenting to a pediatric ED over a 5-month period with wheezing-associated respiratory illnesses. The mean OSATs were 95.4% for wheezing children and 98.7% for controls. An initial OSAT of 95% or more indicated a low need for hospitalization. An initial OSAT less than 85% indicated a high need for hospitalization (positive predictive value, 90%). Pulse oximetry may be useful in identifying children with wheezing who are at high risk, as demonstrated by the need for hospitalization, during the early phase of an ED encounter, at which time more aggressive therapeutic interventions may be considered.