Journal article

Early detection of cystic fibrosis lung disease: multiple-breath washout versus raised volume tests

Sooky Lum, Per Gustafsson, Henrik Ljungberg, Georg Hulskamp, Andrew Bush, Siobhan B Carr, Rosemary Castle, Ah-fong Hoo, John Price, Sarath Ranganathan, John Stroobant, Angie Wade, Colin Wallis, Hilary Wyatt, Janet Stocks

Thorax | BMJ PUBLISHING GROUP | Published : 2007

Abstract

BACKGROUND: Lung clearance index (LCI), a measure of ventilation inhomogeneity derived from the multiple-breath inert gas washout (MBW) technique, has been shown to detect abnormal lung function more readily than spirometry in preschool children with cystic fibrosis, but whether this holds true during infancy is unknown. OBJECTIVES: To compare the extent to which parameters derived from the MBW and the raised lung volume rapid thoraco-abdominal compression (RVRTC) techniques identify diminished airway function in infants with cystic fibrosis when compared with healthy controls. METHODS: Measurements were performed during quiet sleep, with the tidal breathing MBW technique being performed bef..

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