To estimate accuracy and feasibility of Paediatric Pulse Oximeter for use in newborns by comparing it with cardiac monitor as gold standard

Abstract

Objectives :To evaluate the possibility of paediatric pulse oximeter (finger) recommended for age more than 2 years for
pulse oximetry in newborns comparison to gold standard cardiac monitor recommended for newborns.
Methods :Pulse oximetry of 100 normal newborns was done with Dr Trust USA Pediatric pulse oximeter by applying it on index fingers along with ring and index finger of both upper limbs and in big toe along with part of foot of newborn. HR, SpO2 and PI data was collected and compared with Philips goldway GS20 2020 cardiac monitor applied almost simultaneously and the results were compared to estimate efficacy, feasibility and sensitivity of pulse oximeter.
Results :It was feasible to apply pulse oximeter in 61 babies in all four limbs and partially in one, two or three limbs in 19 and in 20 babies it could not be applied in any limb. Mean response time was higher in pulse oximeter than cardiac monitor as expected, although statistically significant but clinically acceptable. Heart rate showed a linear correlation among two instruments signifying that sensitivity of pulse oximeter is acceptable clinically. Oxygen saturation in all four limbs, difference was statistically significant but clinically acceptable. However, the difference in perfusion index in all four limbs was statistically significant as well as clinically unacceptable.
Conclusions :Studied Pulse oximeter can be used in areas where dedicated cardiac monitors for newborns are not available for measuring heart rate and oxygen saturation only if it could be applied.