Pulse Oximeter

Masimo (NASDAQ: MASI) announced today that a new study published in this month's issue of the European peer-reviewed journal Acta Paediatrica demonstrates that pulse oximetry makes a critical difference in neonatal resuscitation both in terms of reliability and speed of measurements.  In comparing the measurement response times of three different pulse oximetry technologies, researchers found that the Masimo Radical-7™ pulse oximeter with Masimo SET® Measure-Through Motion and Low Perfusion technology displayed reliable oxygen saturation (SpO2) measurements three to four times faster than competing pulse oximeters.

In comparing the measurement response times of three different pulse oximetry technologies, researchers found that the Masimo Radical-7™ pulse oximeter with Masimo SET® Measure-Through Motion and Low Perfusion technology displayed reliable oxygen saturation (SpO2) measurements three to four times faster than competing pulse oximeters. 2 measurement was recorded post-ductally (one sensor placed on each foot) once an adequate pulse rate signal was displayed. Results showed that "the pulse oximeter with Masimo SET provided the fastest response time."
 

Despite numerous advances to improve newborn care, oxygen is still used liberally during newborn resuscitation—unnecessarily exposing many newborns to potentially damaging hyperoxia.  Although pulse oximetry is an important clinical tool for evaluating a patient's oxygenation status and guiding resuscitation, measurement failure rates due to motion artifact and low perfusion can be high—leading to inaccurate readings, failure to report readings, or freezing of displayed values. As a result, the time to obtain a reliable oxygen saturation reading during newborn resuscitation in the delivery room and during NICU care is a critically important consideration when choosing a pulse oximetry technology.  This is the first prospective observational study to compare pulse oximetry technology performance in detail during newborn resuscitation under unstable critical conditions.

The study was conducted at two health care centers in Barranquilla, Colombia (Clinica del Mar and Medicina Alta Complejidad S.A.) on 32 newborns (median gestational age of 32 weeks) receiving resuscitation as standard of care either in the delivery room or in the Neonatal Intensive Care Unit (NICU). Using the Masimo LNOP® sensor with the Radical-7, the E630 sensor with the Ohmeda Biox 3700, and the OxiMax Max-N sensor for the Nellcor N395, the time to a reliable SpO

In the first comparison of 17 infants, the median response time to obtain a reliable measurement for the Masimo Radical-7 was 20.2±6 (with a range of 18-26 seconds) versus 74.2±12 (with a range of 38-98 seconds) for the Ohmeda Biox 3700. 

In the second comparison of 15 infants, the median response time for the Masimo Radical-7 was 20.9±4 (with a range of 19-28 seconds) versus 67.3±21 (with a range of 40-90 seconds) for the Nellcor N-395.

Finding that "there are significant differences in the response of pulse oximeters during neonatal resuscitation," researchers concluded that "the speed and reliability of the Masimo SET technology can be of help for clinicians to more accurately adjust the fraction of inspired oxygen during newborn resuscitations, thus preventing or minimizing damage secondary to unnecessary exposure of oxygen and hyperoxemia and to wide fluctuations in oxygen levels." 

The 'gold standard' Measure-Through Motion and Low Perfusion performance of Masimo SET® has been shown in over 100 independent clinical studies to provide the most accurate and trustworthy measurements—even under the most challenging clinical conditions, including patient motion and low perfusion. 

Source: Masimo Corporation