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Are airways structural abnormalities more frequent in children with recurrent lower respiratory tract infections?

Abstract：

UNLABELLED:We report bronchoscopic changes observed in children with recurrent lower airways infections (RLAI) and findings in control children undergoing bronchoscopy for causes other than RLAI. PATIENTS AND METHODS:Retrospective case-control cohorts study. The clinical records of children who had fiberoptic bronchoscopy (FB) for a history of RLAI without any known underlying disorder between 2007 and 2013 and of control children who required FB for other causes were reviewed. Clinical features, bronchospic findings and bronchoalveolar lavage (BAL) results were assessed. RESULTS:Cases were 62 (32 female) children aged 5 years (1-12) and controls 29 children aged 4.5 years (0.5-14). Airway malacia was observed in 32 (52%) vs. 4 (13%) (p = 0.001), profuse respiratory secretions in 34(55%) vs. 6 (20%) (p = 0.007). Endobronchial obstruction: 4 (6.4%) and tracheobronchomegaly were observed only in cases. In cases with profuse respiratory secretions there was a higher prevalence of airways malacia: 64.7% vs. 35.7% (p = 0.04) and of positive BAL cultures: 45.5% vs. 13.3% (p = 0.04). Isolated organisms in cases were non-typable Haemophilus influenzae and Streptococcus pneumoniae most frequently. Pneumocystiis jirovecii, Staphylococcus aureus, and Streptococcus mitis were isolated in controls. CONCLUSIONS:Half of the children with RLAI had tracheo and/or bronchomalacia, their frequency being in keeping with previous reports and far higher than that observed in controls. It was associated with profuse respiratory secretions and with a higher frequency of positive BAL cultures mostly for non typable H. influenzae and S. pneumoniae which were not isolated in controls.

journal_name

Respir Med

journal_title

Respiratory medicine

authors

Santiago-Burruchaga M,Zalacain-Jorge R,Vazquez-Cordero C

doi

10.1016/j.rmed.2014.02.014

subject

Has Abstract

pub_date

2014-05-01 00:00:00

pages

800-5

issue

5

eissn

0954-6111

issn

1532-3064

pii

S0954-6111(14)00089-4

journal_volume

108

pub_type

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