Multi-Site Photoplethysmography Technology for Blood Pressure Assessment: Challenges and Recommendations

Journal of Clinical Medicine

Richard Fletcher¹  Kaylie Welykholowa²  Manish Hosanee²  Rachel Cooper²  Gabriel Chan²  Mohamed Elgendi²  Nigel H. Lovell³  John Allen⁴  Dingchang Zheng⁵  Derek Abbott⁶  Panayiotis A. Kyriacou⁷ 

[1] D-Lab, Massachusetts Institute of Technology, Cambridge, MA 02139, USA;Faculty of Medicine, University of British Columbia, Vancouver, BC V6T 1Z3, Canada;Graduate School of Biomedical Engineering, UNSW Sydney, Sydney, NSW 2052, Australia;Microvascular Diagnostics, Northern Medical Physics and Clinical Engineering, Freeman Hospital, Newcastle Upon Tyne NE7 7DN, UK;Research Center of Intelligent Healthcare, Faculty of Health and Life Science, Coventry University, Coventry CV1 5FB, UK;School of Electrical and Electronic Engineering, The University of Adelaide, Adelaide, SA 5005, Australia;School of Mathematics, Computer Science and Engineering, University of London, London, EC1V 0HB, UK;

关键词: photoplethysmography;    digital health;    global health;    intensive care unit;    anesthesia;    wearable devices;    pulse arrival time;    pulse transit time;    pulse wave;    pulse oximeter;    hypertension assessment;   

DOI  :  10.3390/jcm8111827

来源: DOAJ

【 摘 要 】

Hypertension is one of the most prevalent diseases and is often called the “silent killer” because there are usually no early symptoms. Hypertension is also associated with multiple morbidities, including chronic kidney disease and cardiovascular disease. Early detection and intervention are therefore important. The current routine method for diagnosing hypertension is done using a sphygmomanometer, which can only provide intermittent blood pressure readings and can be confounded by various factors, such as white coat hypertension, time of day, exercise, or stress. Consequently, there is an increasing need for a non-invasive, cuff-less, and continuous blood pressure monitoring device. Multi-site photoplethysmography (PPG) is a promising new technology that can measure a range of features of the pulse, including the pulse transit time of the arterial pulse wave, which can be used to continuously estimate arterial blood pressure. This is achieved by detecting the pulse wave at one body site location and measuring the time it takes for it to reach a second, distal location. The purpose of this review is to analyze the current research in multi-site PPG for blood pressure assessment and provide recommendations to guide future research. In a systematic search of the literature from January 2010 to January 2019, we found 13 papers that proposed novel methods using various two-channel PPG systems and signal processing techniques to acquire blood pressure using multi-site PPG that offered promising results. However, we also found a general lack of validation in terms of sample size and diversity of populations.

【 授权许可】

Unknown