PT  - JOURNAL ARTICLE
AU  - Mariana Ferreira
AU  - Roberto Mendes
AU  - Maria Ângela Ribeiro
AU  - Mariana Zambon
AU  - José Dirceu Ribeiro
TI  - Volumetric capnography (VC) as a complementary tool in lung function evaluation in obese children and adolescents
DP  - 2013 Sep 01
TA  - European Respiratory Journal
PG  - P1100
VI  - 42
IP  - Suppl 57
4099  - http://erj.ersjournals.com/content/42/Suppl_57/P1100.short
4100  - http://erj.ersjournals.com/content/42/Suppl_57/P1100.full
SO  - Eur Respir J2013 Sep 01; 42
AB  - Introduction: Effects of obesity on lung function are not clear in children and adolescents.Aim: To compare the lung function in an obese group(OG) versus a control group of healthy subjects(HG) using Spirometry and VC.Methods: Cross-sectional study including 77subjects(38OG and 39HG) aged between 5.56 and 16.34 years. The subjects performed Spirometry(ERS/ATS) and VC.Results: OG had a significantly higher forced vital capacity(FVC)(p=0.03), lower Tiffenau rate(p=0.00) and lower forced expiratory flow 25%-75%(FEF25-75)(p=0.00). About 36.80% of the OG showed flow obstruction. There were no differences between the groups on forced expiratory volume in 1 second(FEV1). The VC data showing significant differences between OG and HG are shown on table 1.View this table:Table 1: VC variables statistically different between the groups.Conclusions: Spirometry and VC detected differences between the groups. The OG reduction in FEF25-75 reflects an obstruction by the flows. Higher values of FVC and pulmonary volumes may represent an adaptation to the increased ventilatory demand due to excessive body mass and airway obstruction. The reduction in Slp3/Ve indicates that despite the damages mentioned, there are no changes in ventilation homogeneity. More studies are required to confirm the results.