- Title
- Ventilation inhomogeneities in children with congenital thoracic malformations
- Creator
- Mandaliya, Payal H.; Morten, Matthew; Kumar, Rajendra; James, Alan; Deshpande, Aniruddh; Murphy, Vanessa E.; Gibson, Peter G.; Whitehead, Bruce; Robinson, Paul; Mattes, Joerg
- Relation
- BMC Pulmonary Medicine Vol. 15, Issue 1
- Publisher Link
- http://dx.doi.org/10.1186/s12890-015-0023-1
- Publisher
- BioMed Central
- Resource Type
- journal article
- Date
- 2015
- Description
- Background: Congenital thoracic malformations (CTM) are rare lung lesions that are managed with surgical resection or active surveillance. Methods: Nitrogen lung clearance index (LCI), reactance and resistance (X5Hz and R5Hz), forced expiratory volume in 1 s and forced vital capacity (FEV1 and FVC) were prospectively measured in 10 children with CTM (mean age/SD: 7.6/1.3) who had undergone surgical resection in early life and in 17 healthy children (mean age/SD: 4.8/0.4). Total lung capacity (TLC) was also conducted in children older than 7 years of age with CTM (n = 8). Results: Mean LCI was 8.0 (95% CI 7.5 to 8.5) in the CTM group and 7.3 (95% CI 7.0 to 7.6) in healthy children (p = 0.016). Mean X5Hz was -0.44kPa/l/s (95% CI -0.58 to -0.31) in the CTM group and -0.31kPa/l/s (95% CI -0.35 to -0.27) in healthy children (p = 0.02). Mean Z score for X5Hz was -2.11 (95% CI -3.59 to -0.63) in the CTM group and -0.11 (95% CI -0.55 to 0.33) in healthy children (p = 0.0008). Mean FEV1 was 1.21 L (95% CI 0.97 to 1.45) in the CTM group and 1.02 L (95% CI 0.90 to 1.15) in healthy children (p = 0.22). Mean % predicted FEV1 was 83% (95% CI 74 to 92) in the CTM group and 97% (95% CI 87 to 107) in healthy children (p < 0.05). Mean % predicted TLC in CTM children was 121.3% (95% CI 88.45 to 154.1). Mean LCI was inversely correlated with height z-scores in the CTM group (rs = -0.88, p = 0.002) but not in healthy children (rs = 0.22, p = 0.4). Conclusions: Children with CTM have impaired lung function as demonstrated by the significant differences in LCI, reactance and FEV1 but not FVC, resistance and TLC. These findings may be of clinical relevance as ventilation inhomogeneities are closely correlated with somatic growth in this study.
- Subject
- lung inhomogeneities; lung clearance index (LCI); nitrogen multiple breath washout; reactance; resistance; lung function; congenital thoracic malformations
- Identifier
- http://hdl.handle.net/1959.13/1338624
- Identifier
- uon:28065
- Identifier
- ISSN:1471-2466
- Rights
- © 2015 Morten et al.; licensee BioMed Central. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
- Language
- eng
- Full Text
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