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Normal values of respiratory oscillometry in South African children and adolescents

Noninvasive measurement of respiratory impedance by oscillometry can be used in young children aged from 3 years and those unable to perform forced respiratory manoeuvres. It can discriminate between healthy children and those with respiratory disease. However, its clinical application is limited by the lack of reference data for African paediatric populations. The aim of the present study was to develop reference equations for oscillometry outcomes in South African children and adolescents.

Increasing airway obstruction through life following bronchopulmonary dysplasia: a meta-analysis

Few studies exist investigating lung function trajectories of those born preterm; however growing evidence suggests some individuals experience increasing airway obstruction throughout life. Here we use the studies identified in a recent systematic review to provide the first meta-analysis investigating the impact of preterm birth on airway obstruction measured by the forced expiratory volume in 1 s (FEV1) to forced vital capacity (FVC) ratio.

An infant nasal microbial gene atlas uncovers intervention-driven microbiome shifts and salt-resistant pathogen expansion

Functional studies of how early-life interventions shape the airway microbiome remain scarce. Here, we performed metagenomic sequencing of 704 longitudinal nasal swabs from infants with and without cystic fibrosis (CF) to construct and characterize a non-redundant gene atlas of the infant nasal microbiome. We aimed to determine how the nasal microbiome is perturbed by early therapies, as CF is commonly treated with inhaled hypertonic saline to improve mucociliary clearance.

Early detection of lung function abnormalities in young children with cystic fibrosis

In this review, we have examined the role of lung function testing in infants and preschool children with CF.

Air travel and the risks of hypoxia in children

In infants and children with chronic respiratory disease, hypoxia is a potential risk of aircraft travel.

The all-age spirometry reference ranges reflect contemporary Australasian spirometry

Advances in statistical modelling have allowed the creation of smoothly changing spirometry reference ranges that apply across a wide age range and better...

Crowding and other strong predictors of upper respiratory tract carriage of otitis media-related

We investigated predictors of nasopharyngeal carriage in Australian Aboriginal and non-Aboriginal children.

Influence of secular trends and sample size on reference equations for lung function tests

The aim of our study was to determine the contribution of secular trends and sample size to lung function reference equations, and establish the number...

Prolonged use of wind or brass instruments does not alter lung function in musicians

Respiratory function impacts on musical expression for wind/brass (W/B) musicians. Investigation of musicians' respiratory health to date has rarely...

Changes in the FEV/FVC ratio during childhood and adolescence: an intercontinental study

In children, the ratio of forced expiratory volume in 1 s (FEV₁) to forced vital capacity (FVC) is reportedly constant or falls linearly with age...