Author Interviews, Pediatrics, Pulmonary Disease / 17.12.2016
Does Skin Pigmentation Affect Accuracy of Pulse Oximetry in Infants?
MedicalResearch.com Interview with:
Elizabeth Foglia, MD MSCE
Assistant Professor of Pediatrics
University of Pennsylvania Perelman School of Medicine
Attending Neonatologist
Hospital of the University of Pennsylvania
The Children's Hospital of Philadelphia
MedicalResearch.com: What is the background for this study? What are the main findings?
Response: Pulse oximetry is a non-invasive method of monitoring oxygen saturation that is frequently used to monitor ill newborns and infants. Previous studies of adults with hypoxemia (low blood oxygen levels) demonstrated that pulse oximetry is less accurate in adults with dark skin, compared to adults with light skin. We sought to determine if skin pigment affects the accuracy of pulse oximetry in infants with hypoxemia.
We studied 2 widely used pulse oximeters, and we did not find evidence that skin pigment affects the accuracy of pulse oximetry in infants with hypoxemia.
However, the overall performance (combined accuracy and precision) of both oximeters was poor. In addition, one oximeter (the Nellcor Oximax) consistently overestimated the measured blood oxygen level.
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