Cut-off values for positive bronchodilator response in healthy Thai preschool children using forced oscillation technique

Udomittipong, Kanokporn; Triwatanawong, Jurairut; Nimmannit, Akarin; Komoltri, Chulaluk

doi:10.12932/ap-280718-0381

Cited by 1 publication

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“…Oscillometry was easily performed by preschool children with the overall success rate ranging between 74–98% in studies making it a particularly attractive option ( 69 – 73 ). As a clinical tool oscillometry for preschool children is supported by studies that are able to detect differences in prebronchodilator lung function of preschool children with respiratory symptoms compared to those without respiratory symptoms ( 74 ).…”

Section: Resultsmentioning

confidence: 99%

“…Reference data for Mexican, Thai, Turkish and Colombian children have been collected ( 70 – 72 , 75 – 77 ), facilitating the use in diagnosis of respiratory disease. It is also a useful tool to assess airway reversibility in asthmatic children and cut off values for bronchodilator response were proposed ( 69 , 73 ). A Chinese study in children with obstructive sleep apnea hypopnea syndrome (OSAHS).…”

Section: Resultsmentioning

confidence: 99%

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Lung Function in Preschool Children in Low and Middle Income Countries: An Under-Represented Potential Tool to Strengthen Child Health

Chaya

Zar²,

Gray³

2022

Front. Pediatr.

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BackgroundThe burden of respiratory disease is high in low-middle income countries (LMIC). Pulmonary function tests are useful as an objective measure of lung health and to track progression. Spirometry is the commonest test, but its use is limited in preschool children. Other lung function methods have been developed but their use in LMIC has not been well described.AimTo review the use of preschool lung function testing in children in LMIC, with particular reference to feasibility and clinical applications.MethodsElectronic databases “PubMed”, “Scopus”,” Web of Science”, and “EBSCO host” were searched for publications in low and middle income countries on preschool lung function testing, including spirometry, fractional exhaled nitric oxide (FeNO), oscillometry, interrupter technique, tidal breathing and multiple breath washout (MBW), from 1 January 2011 to 31 January 2022. Papers in English were included and those including only children ≥6 years were excluded.ResultA total of 61 papers from LMIC in Asia, South America, Africa, Eurasia or the Middle East were included. Of these, 40 included spirometry, 7 FeNO, 15 oscillometry, 2 interrupter technique, and 2 tidal breathing. The papers covered test feasibility (19/61), clinical application (46/61) or epidemiological studies (13/61). Lung function testing was successful in preschool children from LMIC. Spirometry was the most technically demanding and success gradually increased with age.ConclusionPreschool lung function testing is under-represented in LMIC for the burden of respiratory disease. These tests have the potential to strengthen respiratory care in LMIC, however access needs to be improved.

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Section: Resultsmentioning

confidence: 99%