Fu Zhi Qing, Fan Jin, Wang Yu Tang
First Department of Geriatric Cardiovascular Diseases, Chinese PLA General Hospital, Beijing, China.
Blood Press Monit. 2014 Aug;19(4):246-8. doi: 10.1097/MBP.0000000000000057.
The call for early detection of hypotension creates a heavy demand for new methods that can monitor trends in blood pressure (BP) levels continuously and noninvasively. Photoplethysmography (PPG) is widely used in hemodynamic analysis. We assessed the feasibility of toe PPG in tracing BP trends using BP readings obtained by standard intermittent noninvasive BP measurements from the arm of a patient with severe hypoxic-ischemic brain injury. We demonstrated that an attenuated or inversed dicrotic wave of toe PPG is predictive of BP trends, and this method could be applicable for the continuous noninvasive monitoring of systolic BP at a beat-by-beat basis.
对低血压进行早期检测的需求促使人们迫切需要新的方法，能够连续且无创地监测血压（BP）水平的变化趋势。光电容积脉搏波描记法（PPG）在血流动力学分析中被广泛应用。我们通过标准间歇性无创臂式血压测量获得的血压读数，评估了趾部PPG追踪血压变化趋势的可行性，该患者患有严重缺氧缺血性脑损伤。我们证明，趾部PPG的降中波衰减或倒置可预测血压变化趋势，且该方法可适用于逐搏连续无创监测收缩压。
