scholarly journals Continuous Blood Pressure Monitoring Method Based on Multiple Photoplethysmography Features

2021 ◽  
Author(s):  
Yang Xu ◽  
Zhipei Huang ◽  
Jiankang Wu ◽  
Zhongdi Liu

Continuous blood pressure monitoring is of great significance for the prevention and early diagnosis of cardiovascular diseases. However, the existing continuous blood pressure monitoring methods, especially the sleeveless blood pressure monitoring methods, are complex and computationally heavy. In this paper, we propose a method, using plethysmography (PPG) signals alone, to estimate continuous blood pressure by extracting multiple PPG features related to intravascular blood flow characteristics. The performance of our method was evaluated using ten minutes synchronized PPG signals and continuous blood pressure from 21 healthy volunteers and 19 patients with hypertension and diabetes. The test results have shown that the absolute mean errors and standard deviation errors between the estimated and referenced blood pressure are 3.22±0.66 mmHg for systolic blood pressure and 2.11±1.11 mmHg for diastolic blood pressure, which meet AAMI (the association for the advancement of medical instrumentation) error acceptance.

BMJ Open ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. e029268
Author(s):  
Luis González-de Paz ◽  
Belchin Kostov ◽  
Maria del Carme Alvira-Balada ◽  
Cristina Colungo ◽  
Noemí García ◽  
...  

Introduction24-hour ambulatory blood pressure monitoring (ABPM) is the gold standard diagnostic method for hypertension, but has some shortcomings in clinical practice while clinical settings often lack sufficient devices to accommodate all patients with suspected hypertension. Home blood pressure monitoring (HBPM) and office blood pressure monitoring (OBPM) also have shortcomings, such as the white coat effect or a lack of accuracy. This study aims to study the validity of a new method of diagnosing hypertension consisting of monitoring blood pressure (BP) for 1 hour and comparing it with OBPM and HBPM and examining the sensitivity and specificity of this method compared with 24-hour ABPM. The patient experience will be examined in each method.Methods and analysisA minimum sample of 214 patients requiring a diagnostic test for hypertension from three urban primary healthcare centres will be included. Participants will undergo 24-hour ABPM, 1-hour BP measurement (1-BPM), OBPM for three consecutive weeks and HBPM. Patients will follow a random sequence to first receive 24-hour ABPM or 1-hour ABPM. Daytime 24-hour ABPM records will be compared with the other monitoring methods using the correlation coefficient and Bland Altman plots. The kappa concordance index and the sensitivity and specificity of the methods will be calculated. The patient’s experience will be studied, with selected indicators of efficiency and satisfaction calculated using parametric tests.Ethics and disseminationThe protocol has been authorised by the research ethics committee of the Hospital Clinic of Barcelona (Ref. HCB/2014/0615): protocol details and amendments will be recorded and reported to ClinicalTrials.com. The results will be disseminated in peer-reviewed literature, and to policy makers and healthcare partners.Trial registrationNCT03147573; Pre-results.


2005 ◽  
Vol 15 (1) ◽  
pp. 59-62 ◽  
Author(s):  
C. T. Paul Krediet ◽  
Arthur A. M. Wilde ◽  
John R. Halliwill ◽  
Wouter Wieling

2013 ◽  
Vol 7 (1) ◽  
pp. 91-101 ◽  
Author(s):  
Elena Chung ◽  
Guo Chen ◽  
Brenton Alexander ◽  
Maxime Cannesson

Author(s):  
A. C. Pessina ◽  
P. Palatini ◽  
G. Sperti ◽  
L. Cordone ◽  
E. Ventura ◽  
...  

2020 ◽  
Vol 25 (5) ◽  
pp. 278-284
Author(s):  
Hussam Alharash ◽  
Md Jobayer Hossain ◽  
Abhishek Bhattacharjee ◽  
Yosef Levenbrown

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