Influence of digital clubbing on oxygen saturation measurements by pulse-oximetry in cystic fibrosis patients

Journal of Cystic Fibrosis : Official Journal of the European Cystic Fibrosis Society
Filip Van GinderdeurenAnne Malfroot

Abstract

To determine the influence of digital clubbing on oxygen saturation by pulse oximetry measurements (SpO2) in Cystic Fibrosis patients. Measuring the arterial oxygen saturation at the fingertip by pulse-oximetry is commonly used in the management of CF patients. In these patients, clinical signs of hyperoxia are often observed with oxygen supplies based on digital oximetry readings. This suggests inaccuracies in the digital measurement method, which in its turn may be caused by digital clubbing. In order to study the influence of digital clubbing, measurements between fingertip and forehead sensor were compared in a clubbing and non-clubbing CF-population. The ear sensor measurements are used as a reference variable. Two groups were examined. Group 1 consisted of 50 CF patients without digital clubbing (DPD/IPD ratio<1.00). Group 2 consisted of 50 CF patients with digital clubbing (DPD/IPD ratio>1.00). Patients were measured at rest before any treatment and with their daily oxygen supply, if applicable. Saturation was simultaneously measured with three Criticare SpO2 T pulse oximeters, using a fingertip sensor at the right index (transmission oximetry), a forehead sensor at the forehead (reflectance oximetry) and an ear sensor a...Continue Reading

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Jul 2, 2011·High Altitude Medicine & Biology·Andrew M Luks, Erik R Swenson
Nov 21, 2013·Respirology : Official Journal of the Asian Pacific Society of Respirology·Jeffrey J PrettoGarun Hamilton
Dec 23, 2014·High Altitude Medicine & Biology·Buddha Basnyat
Oct 2, 2015·The European Respiratory Journal·Giancarlo PiaggiManuela Piran
Dec 20, 2019·European Respiratory Review : an Official Journal of the European Respiratory Society·Thomas RadtkeHelge Hebestreit

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