Satake Shuichi, Shimura Tatsuo, Ono Tetsuya, Shimomura Kenju, Takenoshita Seiichi, Kono Koji
Emergency and Critical Care Center, Aidu Chuo Hospital, Aizuwakamatsu.
Department of Progressive DOHaD Research.
Blood Press Monit. 2019 Jun;24(3):155-159. doi: 10.1097/MBP.0000000000000380.
Continuous blood pressure monitoring is essential in the management of patients in critical conditions, as well as those under anesthesia. However, continuous blood pressure monitoring requires insertion of a catheter into the radial artery. Thus, continuous noninvasive arterial blood pressure monitoring would be ideal.
We designed and built a continuous noninvasive arterial blood pressure monitoring device with a pressure sensor diaphragm using microelectromechanical system technology, a square with 4 mm sides that were 0.4 mm thick. Comparisons between a continuous noninvasive arterial blood pressure monitoring device and a sphygmomanometer were carried out on 92 volunteers, and comparisons between noninvasive and invasive blood pressure monitoring were performed on three patients perioperatively at Fukushima Medical University Hospital.
In the comparisons of arterial blood pressure measurements between a sphygmomanometer and our device, the differences became gradually greater over time after starting continuous monitoring in conscious participants. In the comparisons of arterial blood pressure measurements between the invasive and noninvasive methods in unconscious subjects under general anesthesia, the results of noninvasive monitoring were consistent with those of invasive arterial blood pressure monitoring.
Continuous noninvasive arterial monitoring with a pressure sensor diaphragm using microelectromechanical system technology is a possible alternative to conventional invasive arterial pressure monitoring by an arterial catheter.
连续血压监测对于危重症患者以及麻醉患者的管理至关重要。然而，连续血压监测需要将导管插入桡动脉。因此，连续无创动脉血压监测将是理想的选择。
我们设计并制造了一种连续无创动脉血压监测设备，该设备采用微机电系统技术的压力传感器隔膜，是一个边长为4毫米、厚度为0.4毫米的正方形。在92名志愿者身上对连续无创动脉血压监测设备与血压计进行了比较，并在福岛医科大学医院对3例患者围手术期进行了无创和有创血压监测的比较。
在血压计与我们的设备之间进行动脉血压测量比较时，在有意识的参与者开始连续监测后，随着时间的推移差异逐渐增大。在全身麻醉下无意识受试者的有创和无创方法之间进行动脉血压测量比较时，无创监测结果与有创动脉血压监测结果一致。
采用微机电系统技术的压力传感器隔膜进行连续无创动脉监测是传统动脉导管有创动脉压监测的一种可能替代方法。
