01.06.2022 | Original Article
Single Breath Counting for Diagnosis and Prediction of Severity of Acute Asthma Exacerbation in Children
verfasst von:
Devansh Sharma, Anil Kumar Saini, Deo Kumar Jha, Amita Tyagi, Surender Singh Bisht
Erschienen in:
Indian Journal of Pediatrics
|
Ausgabe 8/2023
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Abstract
Objectives
To find correlation between single breath counting (SBC) and spirometry in acute exacerbation of asthma in children.
Methods
A cross-sectional observational study including all children aged 6–12 y age, who presented in outpatient department or emergency room with acute exacerbation of asthma, not fitting in exclusion criteria were enrolled. SBC and spirometry parameters were obtained before treatment and 1 h after initiating treatment (GINA 2017 Guidelines).
Results
Significant correlation was observed in SBC and FVC (r = 0.349), FEV1 (r = 0.439), FEF25-75 (r = 0.424), and PEF (r = 0.593). Cutoff value of SBC of 23 was found to be suggestive of severe/life-threatening asthma with sensitivity of 83.3% and specificity of 84.4%. No significant association was found between percent change in SBC and spirometry parameters in response to treatment.
Conclusions
SBC can be used to predict PEF, FEV1, FVC, and FEF25-75 of a patient aged between 6 and 12 y during acute asthma exacerbation. The observed cutoff value of 23 of SBC score has a good sensitivity and specificity to identify life-threatening/severe exacerbation. SBC score significantly increases in response to therapy.