A decade on: Follow-up findings of indigenous children with bronchiectasis

Gabrielle B. McCallum, Rosalyn J. Singleton, Gregory J. Redding, Keith Grimwood, Catherine A. Byrnes, Patricia C. Valery, Charmaine Mobberley, Victor M. Oguoma, Kah Peng Eg, Peter S. Morris, Anne B. Chang

Research output: Contribution to journalArticle

Abstract

Objective
The sole prospective longitudinal study of children with either chronic suppurative lung disease (CSLD) or bronchiectasis published in the current era was limited to a single center. We sought to extend this study by evaluating the longer‐term clinical and lung function outcomes and their associated risk factors in Indigenous children of adolescents from Australia, Alaska, and New Zealand who participated in our previous CSLD or bronchiectasis studies during 2004‐2010.

Methods
Between 2015 and 2018, we evaluated 131 out of 180 (72.8%) children of adolescents from the original studies at a single follow‐up visit. We administered standardized questionnaires, reviewed medical records, undertook clinical examinations, performed spirometry, and scored available chest computed tomography scans.

Results
Participants were seen at a mean age of 12.3 years (standard deviation: 2.6) and a median of 9.0 years (range: 5.0‐13.0) after their original recruitment. With increasing age, rates of acute lower respiratory infections (ALRI) declined, while lung function was mostly within population norms (median forced expiry volume in one‐second = 90% predicted, interquartile range [IQR]: 81‐105; forced vital capacity [FVC] = 98% predicted, IQR: 85‐114). However, 43 out of 111 (38.7%) reported chronic cough episodes. Their overall global rating judged by symptoms, including ALRI frequency, examination findings, and spirometry was well (20.3%), stable (43.9%), or improved (35.8%). Multivariable regression identified household tobacco exposure and age at first ALRI‐episode as independent risk factors associated with lower FVC% predicted values.

Conclusion
Under our clinical care, the respiratory outcomes in late childhood or early adolescence are encouraging for these patient populations at high‐risk of premature mortality. Prospective studies to further inform management throughout the life course into adulthood are now needed.
Original languageEnglish
Pages (from-to)1-11
Number of pages11
JournalPediatric Pulmonology
DOIs
Publication statusE-pub ahead of print - 25 Feb 2020
Externally publishedYes

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Bronchiectasis
Spirometry
Vital Capacity
Respiratory Tract Infections
Lung Diseases
Prospective Studies
Lung
Premature Mortality
New Zealand
Cough
Population
Tobacco
Medical Records
Longitudinal Studies
Thorax
Tomography

Cite this

McCallum, G. B., Singleton, R. J., Redding, G. J., Grimwood, K., Byrnes, C. A., Valery, P. C., ... Chang, A. B. (2020). A decade on: Follow-up findings of indigenous children with bronchiectasis. Pediatric Pulmonology, 1-11. https://doi.org/10.1002/ppul.24696
McCallum, Gabrielle B. ; Singleton, Rosalyn J. ; Redding, Gregory J. ; Grimwood, Keith ; Byrnes, Catherine A. ; Valery, Patricia C. ; Mobberley, Charmaine ; Oguoma, Victor M. ; Eg, Kah Peng ; Morris, Peter S. ; Chang, Anne B. / A decade on: Follow-up findings of indigenous children with bronchiectasis. In: Pediatric Pulmonology. 2020 ; pp. 1-11.
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abstract = "ObjectiveThe sole prospective longitudinal study of children with either chronic suppurative lung disease (CSLD) or bronchiectasis published in the current era was limited to a single center. We sought to extend this study by evaluating the longer‐term clinical and lung function outcomes and their associated risk factors in Indigenous children of adolescents from Australia, Alaska, and New Zealand who participated in our previous CSLD or bronchiectasis studies during 2004‐2010.MethodsBetween 2015 and 2018, we evaluated 131 out of 180 (72.8{\%}) children of adolescents from the original studies at a single follow‐up visit. We administered standardized questionnaires, reviewed medical records, undertook clinical examinations, performed spirometry, and scored available chest computed tomography scans.ResultsParticipants were seen at a mean age of 12.3 years (standard deviation: 2.6) and a median of 9.0 years (range: 5.0‐13.0) after their original recruitment. With increasing age, rates of acute lower respiratory infections (ALRI) declined, while lung function was mostly within population norms (median forced expiry volume in one‐second = 90{\%} predicted, interquartile range [IQR]: 81‐105; forced vital capacity [FVC] = 98{\%} predicted, IQR: 85‐114). However, 43 out of 111 (38.7{\%}) reported chronic cough episodes. Their overall global rating judged by symptoms, including ALRI frequency, examination findings, and spirometry was well (20.3{\%}), stable (43.9{\%}), or improved (35.8{\%}). Multivariable regression identified household tobacco exposure and age at first ALRI‐episode as independent risk factors associated with lower FVC{\%} predicted values.ConclusionUnder our clinical care, the respiratory outcomes in late childhood or early adolescence are encouraging for these patient populations at high‐risk of premature mortality. Prospective studies to further inform management throughout the life course into adulthood are now needed.",
author = "McCallum, {Gabrielle B.} and Singleton, {Rosalyn J.} and Redding, {Gregory J.} and Keith Grimwood and Byrnes, {Catherine A.} and Valery, {Patricia C.} and Charmaine Mobberley and Oguoma, {Victor M.} and Eg, {Kah Peng} and Morris, {Peter S.} and Chang, {Anne B.}",
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McCallum, GB, Singleton, RJ, Redding, GJ, Grimwood, K, Byrnes, CA, Valery, PC, Mobberley, C, Oguoma, VM, Eg, KP, Morris, PS & Chang, AB 2020, 'A decade on: Follow-up findings of indigenous children with bronchiectasis', Pediatric Pulmonology, pp. 1-11. https://doi.org/10.1002/ppul.24696

A decade on: Follow-up findings of indigenous children with bronchiectasis. / McCallum, Gabrielle B.; Singleton, Rosalyn J.; Redding, Gregory J.; Grimwood, Keith; Byrnes, Catherine A.; Valery, Patricia C.; Mobberley, Charmaine; Oguoma, Victor M.; Eg, Kah Peng; Morris, Peter S.; Chang, Anne B.

In: Pediatric Pulmonology, 25.02.2020, p. 1-11.

Research output: Contribution to journalArticle

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T1 - A decade on: Follow-up findings of indigenous children with bronchiectasis

AU - McCallum, Gabrielle B.

AU - Singleton, Rosalyn J.

AU - Redding, Gregory J.

AU - Grimwood, Keith

AU - Byrnes, Catherine A.

AU - Valery, Patricia C.

AU - Mobberley, Charmaine

AU - Oguoma, Victor M.

AU - Eg, Kah Peng

AU - Morris, Peter S.

AU - Chang, Anne B.

PY - 2020/2/25

Y1 - 2020/2/25

N2 - ObjectiveThe sole prospective longitudinal study of children with either chronic suppurative lung disease (CSLD) or bronchiectasis published in the current era was limited to a single center. We sought to extend this study by evaluating the longer‐term clinical and lung function outcomes and their associated risk factors in Indigenous children of adolescents from Australia, Alaska, and New Zealand who participated in our previous CSLD or bronchiectasis studies during 2004‐2010.MethodsBetween 2015 and 2018, we evaluated 131 out of 180 (72.8%) children of adolescents from the original studies at a single follow‐up visit. We administered standardized questionnaires, reviewed medical records, undertook clinical examinations, performed spirometry, and scored available chest computed tomography scans.ResultsParticipants were seen at a mean age of 12.3 years (standard deviation: 2.6) and a median of 9.0 years (range: 5.0‐13.0) after their original recruitment. With increasing age, rates of acute lower respiratory infections (ALRI) declined, while lung function was mostly within population norms (median forced expiry volume in one‐second = 90% predicted, interquartile range [IQR]: 81‐105; forced vital capacity [FVC] = 98% predicted, IQR: 85‐114). However, 43 out of 111 (38.7%) reported chronic cough episodes. Their overall global rating judged by symptoms, including ALRI frequency, examination findings, and spirometry was well (20.3%), stable (43.9%), or improved (35.8%). Multivariable regression identified household tobacco exposure and age at first ALRI‐episode as independent risk factors associated with lower FVC% predicted values.ConclusionUnder our clinical care, the respiratory outcomes in late childhood or early adolescence are encouraging for these patient populations at high‐risk of premature mortality. Prospective studies to further inform management throughout the life course into adulthood are now needed.

AB - ObjectiveThe sole prospective longitudinal study of children with either chronic suppurative lung disease (CSLD) or bronchiectasis published in the current era was limited to a single center. We sought to extend this study by evaluating the longer‐term clinical and lung function outcomes and their associated risk factors in Indigenous children of adolescents from Australia, Alaska, and New Zealand who participated in our previous CSLD or bronchiectasis studies during 2004‐2010.MethodsBetween 2015 and 2018, we evaluated 131 out of 180 (72.8%) children of adolescents from the original studies at a single follow‐up visit. We administered standardized questionnaires, reviewed medical records, undertook clinical examinations, performed spirometry, and scored available chest computed tomography scans.ResultsParticipants were seen at a mean age of 12.3 years (standard deviation: 2.6) and a median of 9.0 years (range: 5.0‐13.0) after their original recruitment. With increasing age, rates of acute lower respiratory infections (ALRI) declined, while lung function was mostly within population norms (median forced expiry volume in one‐second = 90% predicted, interquartile range [IQR]: 81‐105; forced vital capacity [FVC] = 98% predicted, IQR: 85‐114). However, 43 out of 111 (38.7%) reported chronic cough episodes. Their overall global rating judged by symptoms, including ALRI frequency, examination findings, and spirometry was well (20.3%), stable (43.9%), or improved (35.8%). Multivariable regression identified household tobacco exposure and age at first ALRI‐episode as independent risk factors associated with lower FVC% predicted values.ConclusionUnder our clinical care, the respiratory outcomes in late childhood or early adolescence are encouraging for these patient populations at high‐risk of premature mortality. Prospective studies to further inform management throughout the life course into adulthood are now needed.

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DO - 10.1002/ppul.24696

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JO - Pediatric Pulmonology

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McCallum GB, Singleton RJ, Redding GJ, Grimwood K, Byrnes CA, Valery PC et al. A decade on: Follow-up findings of indigenous children with bronchiectasis. Pediatric Pulmonology. 2020 Feb 25;1-11. https://doi.org/10.1002/ppul.24696