Differences in Airway Resistances in Children Measured by Plethysmography With and Without Closure of the Occluder

Sardón, Olaia; Pérez-Yarza, Eduardo González; Aldasoro, Ane; Korta, Javier; Corcuera, Paula; Mintegui, Javier; Emparanza, José Ignacio

doi:10.1016/s1579-2129(10)70043-4

Cited by 1 publication

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References 17 publications

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“…3,10,14,17 An ideal PFT is applicable at any age so that longitudinal studies can be made, monitoring the child from his childhood through his adult age. They are simple to perform, safe, reproducible and sensitive enough to distinguish health from disease.…”

Section: Introductionmentioning

confidence: 99%

Functional Respiratory Study in Preschool Children: A Review

Marques¹

2015

JLPRR

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Introduction: Children of preschool age have high chronic respiratory morbidity and a tendency to progressive increase. The pulmonary function tests (PFT) quantify objectively the lung commitment and are proving very useful in the diagnosis, therapeutic monitoring and prognostic evaluation of several pathologies.Purpose: The purpose of this literature review is to understand the relevance and value of PFT to this age group, taking into account the new criteria of the American Thoracic Society/European Respiratory Society (ATS/ERS) (2007). Methods:We conducted a literature review, based on the keywords: respiratory function test, pre-school, spirometry and asthma. We consulted the databases PubMed and B-on, from which 38 articles were selected. 18 of them were analyzed with respect to the keywords above.Results/discussion: PFT are valuable for the diagnostic evaluation of preschoolers, with high technically acceptable success rates and reproducible maneuvers. Conclusion:The evaluation of lung function is very important in the study of the genetic and environmental determinants of lung disease, as well as being a strong predictor of long-term illness. Keywords PlethysmographyIt is not possible to measure static lung volumes in young children because they do not tolerate valve occlusion in plethysmography. However the measurement of specific airway resistance (sRaw) does not require the use of a valve. sRaw is increased in asthmatic children at preschool age with wheezing and cystic fibrosis. 2,5,7,10,14 It is very useful in the assessment of bronchodilator response of young asthmatics and the effect of leukotriene antagonists and inhaled corticosteroids. 2,5,10,14 Tidal breathingThis technique includes the analysis of expiratory flow and thoracoabdominal motion. The analysis of expiratory flow at tidal breathing can be conducted through flow signals collected in the airway (with a mask/mouthpiece and pneumotachograph), or by volume changes collected at the thoracic wall (with bands at the thoracic and abdominal zone) by respiratory inductance plethysmography (RIP). 14,19 Interruptor technique (Rint)This is based on the rapid equilibration between the alveolar pressure and the pressure measured at the mouth during the sudden debt interruption, reflecting the static elastic traction of the respiratory system. 16 There is a good correlation between Gold Standard techniques and the ability to detect changes in airway caliber. The total maximum interruption time is never greater than 100milliseconds. 10,14,19,20 It may be more easily performed in the preschooler than spirometry.7 This technique has not gained broad clinical acceptance yet. It is mostly used in clinical research. Forced oscillation technique (FOT)It is a simple tidal breathing technique, non-invasive and easy to perform in preschoolers. Consists of applying an external wave of pressure in the mouth, through a pneumotachograph with mask or mouthpiece and nose clips, allowing the calculation of the respiratory system impedance (Zrs).This identi...

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Section: Introductionmentioning

confidence: 99%

Functional Respiratory Study in Preschool Children: A Review

Marques¹

2015

JLPRR

View full text Add to dashboard Cite

show abstract

Differences in Airway Resistances in Children Measured by Plethysmography With and Without Closure of the Occluder

Cited by 1 publication

References 17 publications

Functional Respiratory Study in Preschool Children: A Review

Functional Respiratory Study in Preschool Children: A Review

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