摘要：Recently, maintaining a certain oxygen saturation measured by pulse oximetry (SpO
2) range in mechanically ventilated patients was recommended; attaching the INTELLiVENT-ASV to ventilators might be beneficial. We evaluated the SpO
2 measurement accuracy of a Nihon Kohden and a Masimo monitor compared to actual arterial oxygen saturation (SaO
2). SpO
2 was simultaneously measured by a Nihon Kohden and Masimo monitor in patients consecutively admitted to a general intensive care unit and mechanically ventilated. Bland–Altman plots were used to compare measured SpO
2 with actual SaO
2. One hundred mechanically ventilated patients and 1497 arterial blood gas results were reviewed. Mean SaO
2 values, Nihon Kohden SpO
2 measurements, and Masimo SpO
2 measurements were 95.7%, 96.4%, and 96.9%, respectively. The Nihon Kohden SpO
2 measurements were less biased than Masimo measurements; their precision was not significantly different. Nihon Kohden and Masimo SpO
2 measurements were not significantly different in the “SaO
2 < 94%” group (
P = 0.083). In the “94% ≤ SaO
2 < 98%” and “SaO
2 ≥ 98%” groups, there were significant differences between the Nihon Kohden and Masimo SpO
2 measurements (
P < 0.0001;
P = 0.006; respectively). Therefore, when using automatically controlling oxygenation with INTELLiVENT-ASV in mechanically ventilated patients, the Nihon Kohden SpO
2 sensor is preferable.
Trial registration UMIN000027671. Registered 7 June 2017.
