Study compares performance of Masimo RRa, Nellcore PM1000N
Masimo announced that researchers at the Tokyo Women's Medical University, Department of Anesthesiology, in Japan have published a study investigating the measurement of respiration rate in volunteers. Masimo acoustic respiration rate, using the Masimo Radical-7 Pulse CO-Oximeter, was studied alongside Nellcor plethysmographic respiration rate, using the Nellcor PM1000N. Dr. Kitsiripant and colleagues enrolled 50 healthy adult volunteers in the study. Respiration rate, pulse rate, and oxygen saturation values were measured using the two technologies: Nellcor respiration rate, pulse rate, and SpO2 on PM1000N were measured using an SpO2 adhesive sensor on the left index finger; Masimo respiration rate on Radical-7 was measured using the RAS-125c acoustic sensor on the left side of the neck, with an R1-25L adhesive sensor on the right index finger measuring Masimo pulse rate and SpO2. The researchers concluded that Masimo acoustic respiration rate provided faster detection of respiratory pause than Nellcor, but it should be noted as a limitation of the study that the measurements were taken using volunteer participants who maintained a fixed breathing rate and then abruptly held their breath.