• Int. J. Cardiol. · Jun 2019

    Multicenter Study

    Impaired pulmonary function and its association with clinical outcomes, exercise capacity and quality of life in children with congenital heart disease.

    • Hamouda Abassi, Arthur Gavotto, Marie Christine Picot, Helena Bertet, Stefan Matecki, Sophie Guillaumont, Stephane Moniotte, Pascal Auquier, Johan Moreau, and Pascal Amedro.
    • Paediatric and Congenital Cardiology Department, M3C Regional Reference Centre, Montpellier University Hospital, Montpellier, France; Center for Studies and Research on Health Services and Quality of Life, Aix-Marseille University, Marseille, France.
    • Int. J. Cardiol. 2019 Jun 15; 285: 86-92.

    BackgroundImpaired pulmonary function is an independent predictor of mortality in adult congenital heart disease (CHD), but has been scarcely studied in the paediatric CHD population.AimsTo compare the pulmonary function of children with CHD to healthy controls, and evaluate its association with clinical outcomes, exercise capacity, and quality of life.MethodsCross-sectional multicentre study among 834 children (555 CHD and 279 control subjects) who underwent a complete spirometry and a cardiopulmonary exercise test (CPET). The 5th centile (Z-score = -1.64) was used to define the lower limit of normal. The association of clinical and CPET variables with spirometry was studied using a multivariate analysis. Children and their parents filled in the Kidscreen health-related quality of life questionnaire.ResultsForced vital capacity (FVC) and forced expiratory volume in 1 s (FEV1) Z-scores values were lower in children with CHD than controls (-0.4 ± 1.5 vs. 0.4 ± 1.3, P < 0.001 and -0.5 ± 1.4 vs. 0.4 ± 1.2, P < 0.001, respectively), without any obstructive airway disorder. Restrictive pattern was more frequent in CHD patients than in controls (20% vs. 4%, P < 0.0001). FVC Z-scores were predominantly impaired in complex CHD, such as heterotaxy (-1.1 ± 0.6), single ventricle (-1.0 ± 0.2), and complex anomalies of the ventricular outflow tracts (-0.9 ± 0.1). In multivariate analysis, FVC was associated with age, body mass index, peak oxygen uptake, genetic anomalies, the number of cardiac surgery and cardiac catheter procedures. FVC and FEV1 correlated with self and proxy-related quality of life scores.ConclusionThese results suggest that pulmonary function should be monitored early in life, from childhood, in the CHD population.Trial Registration NumberNCT01202916, post-results.Copyright © 2019 Elsevier B.V. All rights reserved.

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