Factors which influence concordance among measurements obtained by different pulse oximeters currently used in some clinical situations

Abstract

There exists a "very good" concordance among two wireless oximeters which have been used by the health staff for 3 years and which did not offer any possibility of calibration and one monitor which belongs to the healthcare institution. This aspect is of crucial importance in daily clinical practice, and it is also relevant to ensure patient's safety.

Hospital Environmental Factors That Influence Peripheral Oxygen Saturation Measurements: A Cross-Sectional Study

“…However, the bed situated adjacent to the entrance to the room exhibited the highest mean relative humidity. In contrast, another study conducted at the same hospital [11] involving a comparable mean humidity (50.85%) revealed a significant negative correlation between relative humidity and SpO 2 levels (r = -0.321).…”

“…It should be noted that, in line with European Commission and FDA regulations, saturometers purchased by professionals must be specified for "medical use" in order to ensure conformity with regulatory standards [6][7][8][9]. Nevertheless, it is essential to note that previous studies [10,11] have demonstrated a high degree of concordance between different SpO 2 measurements obtained by various PODs, even in oximeters with over three years of use and without calibration adjustments. These findings were corroborated by the Landis-Koch criteria, which yielded a "good" agreement (0.88) and a "very good" agreement (0.925) between the measurements.…”

“…(6) Recent studies have demonstrated that an adequate ambient temperature favors precision in saturation measurements, with warm temperatures improving the quality of the signals transmitted to the device by up to four times. However, relative humidity has been shown to negatively affect this measurement [11]. (7) Environmental noise results in a 17% decrease in performance [30][31][32].…”

A Pre–Post Study on the Cardiorespiratory Response to Different Protocols of Exposure on a Vibratory Platform in Young Healthy Individuals

“…All measurements were performed under strict standard conditions, at rest, at least 30 min after food intake. Arterial oxygen saturation (SaO 2 , %) and heart rate (HR, beats/min) were measured by a portable fingertip pulse oximeter and heart-rate monitor (CMS 50-DL ContecTM, Qinhuangdao, China), a device with good references for research studies [28]. The recording of SaO 2 and HR was performed in roughly ten seconds for each participant.…”