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Lung function deficits and bronchodilator responsiveness at 12 years of age in children born very preterm compared with controls born at term

Hagman, Cecilia LU orcid ; Björklund, Lars J LU ; Bjermer, Leif LU ; Hansen-Pupp, Ingrid LU orcid and Tufvesson, Ellen LU (2023) In Pediatric Pulmonology 58(11). p.3156-3170
Abstract

INTRODUCTION: Very preterm birth is associated with lung function impairment later in life, but several aspects have not been studied. We aimed to comprehensively assess lung function at school age in very preterm infants and term controls, with special emphasis on bronchopulmonary dysplasia (BPD), sex, and bronchodilator response.

METHODS: At 12 years of age, 136 children born very preterm (85 with and 51 without BPD) and 56 children born at term performed spirometry, body plethysmography, impulse oscillometry, measurement of diffusion capacity, and multiple breath washout, before and after bronchodilator inhalation.

RESULTS: Airway symptoms and a diagnosis of asthma were more common in children born very preterm. These... (More)

INTRODUCTION: Very preterm birth is associated with lung function impairment later in life, but several aspects have not been studied. We aimed to comprehensively assess lung function at school age in very preterm infants and term controls, with special emphasis on bronchopulmonary dysplasia (BPD), sex, and bronchodilator response.

METHODS: At 12 years of age, 136 children born very preterm (85 with and 51 without BPD) and 56 children born at term performed spirometry, body plethysmography, impulse oscillometry, measurement of diffusion capacity, and multiple breath washout, before and after bronchodilator inhalation.

RESULTS: Airway symptoms and a diagnosis of asthma were more common in children born very preterm. These children had more airflow limitation, seen as lower forced expiratory volume in 1 s (FEV1 ) (p < .001), FEV1 /forced vital capacity (FVC) (p = .011), and mean forced expiratory flow between 25% and 75% of FVC (p < .001), and a higher total and peripheral airway resistance compared with term-born controls. There was no difference in total lung capacity but air trapping and lung clearance index were higher in children born very preterm. Diffusion capacity was lower in children born very preterm, especially in those with a diagnosis of BPD. In most other tests, the differences between preterm-born children with or without BPD were smaller than between children born preterm versus at term. Boys born preterm had more lung function deficits than preterm-born girls. In children born very preterm, airway obstruction was to a large extent reversible.

CONCLUSION: At 12 years of age, children born very preterm had lower lung function than children born at term in most aspects and there was only little difference between children with or without BPD. Airway obstruction improved markedly after bronchodilator inhalation.

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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Pediatric Pulmonology
volume
58
issue
11
pages
3156 - 3170
publisher
John Wiley & Sons Inc.
external identifiers
  • scopus:85168327954
  • pmid:37594159
ISSN
8755-6863
DOI
10.1002/ppul.26636
language
English
LU publication?
yes
additional info
© 2023 The Authors. Pediatric Pulmonology published by Wiley Periodicals LLC.
id
4eeb36d5-8d40-4c1f-9571-cea3591fb9ba
date added to LUP
2023-10-10 14:30:22
date last changed
2024-04-19 02:12:53
@article{4eeb36d5-8d40-4c1f-9571-cea3591fb9ba,
  abstract     = {{<p>INTRODUCTION: Very preterm birth is associated with lung function impairment later in life, but several aspects have not been studied. We aimed to comprehensively assess lung function at school age in very preterm infants and term controls, with special emphasis on bronchopulmonary dysplasia (BPD), sex, and bronchodilator response.</p><p>METHODS: At 12 years of age, 136 children born very preterm (85 with and 51 without BPD) and 56 children born at term performed spirometry, body plethysmography, impulse oscillometry, measurement of diffusion capacity, and multiple breath washout, before and after bronchodilator inhalation.</p><p>RESULTS: Airway symptoms and a diagnosis of asthma were more common in children born very preterm. These children had more airflow limitation, seen as lower forced expiratory volume in 1 s (FEV1 ) (p &lt; .001), FEV1 /forced vital capacity (FVC) (p = .011), and mean forced expiratory flow between 25% and 75% of FVC (p &lt; .001), and a higher total and peripheral airway resistance compared with term-born controls. There was no difference in total lung capacity but air trapping and lung clearance index were higher in children born very preterm. Diffusion capacity was lower in children born very preterm, especially in those with a diagnosis of BPD. In most other tests, the differences between preterm-born children with or without BPD were smaller than between children born preterm versus at term. Boys born preterm had more lung function deficits than preterm-born girls. In children born very preterm, airway obstruction was to a large extent reversible.</p><p>CONCLUSION: At 12 years of age, children born very preterm had lower lung function than children born at term in most aspects and there was only little difference between children with or without BPD. Airway obstruction improved markedly after bronchodilator inhalation.</p>}},
  author       = {{Hagman, Cecilia and Björklund, Lars J and Bjermer, Leif and Hansen-Pupp, Ingrid and Tufvesson, Ellen}},
  issn         = {{8755-6863}},
  language     = {{eng}},
  month        = {{08}},
  number       = {{11}},
  pages        = {{3156--3170}},
  publisher    = {{John Wiley & Sons Inc.}},
  series       = {{Pediatric Pulmonology}},
  title        = {{Lung function deficits and bronchodilator responsiveness at 12 years of age in children born very preterm compared with controls born at term}},
  url          = {{http://dx.doi.org/10.1002/ppul.26636}},
  doi          = {{10.1002/ppul.26636}},
  volume       = {{58}},
  year         = {{2023}},
}