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Blood Pressure Continuous Measurement through a Wearable Device: Development and Validation of a Cuffless Method

The present study aims to develop and validate a cuffless method for blood pressure continuous measurement through a wearable device. The goal is achieved according to the time-delay method, with the guiding principle of the time relation it takes for a blood volume to travel from the heart to a per...

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Autores principales: De Marchi, Beatrice, Frigerio, Mattia, De Nadai, Silvia, Longinotti-Buitoni, Gianluigi, Aliverti, Andrea
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8588523/
https://www.ncbi.nlm.nih.gov/pubmed/34770641
http://dx.doi.org/10.3390/s21217334
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author De Marchi, Beatrice
Frigerio, Mattia
De Nadai, Silvia
Longinotti-Buitoni, Gianluigi
Aliverti, Andrea
author_facet De Marchi, Beatrice
Frigerio, Mattia
De Nadai, Silvia
Longinotti-Buitoni, Gianluigi
Aliverti, Andrea
author_sort De Marchi, Beatrice
collection PubMed
description The present study aims to develop and validate a cuffless method for blood pressure continuous measurement through a wearable device. The goal is achieved according to the time-delay method, with the guiding principle of the time relation it takes for a blood volume to travel from the heart to a peripheral site. Inversely proportional to the blood pressure, this time relation is obtained as the time occurring between the R peak of the electrocardiographic signal and a marker point on the photoplethysmographic wave. Such physiological signals are recorded by using L.I.F.E. Italia’s wearable device, made of a sensorized shirt and wristband. A linear regression model is implemented to estimate the corresponding blood pressure variations from the obtained time-delay and other features of the photoplethysmographic wave. Then, according to the international standards, the model performance is assessed, comparing the estimates with the measurements provided by a certified digital sphygmomanometer. According to the standards, the results obtained during this study are notable, with 85% of the errors lower than 10 mmHg and a mean absolute error lower than 7 mmHg. In conclusion, this study suggests a time-delay method for continuous blood pressure estimates with good performance, compared with a reference device based on the oscillometric technique.
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spelling pubmed-85885232021-11-13 Blood Pressure Continuous Measurement through a Wearable Device: Development and Validation of a Cuffless Method De Marchi, Beatrice Frigerio, Mattia De Nadai, Silvia Longinotti-Buitoni, Gianluigi Aliverti, Andrea Sensors (Basel) Article The present study aims to develop and validate a cuffless method for blood pressure continuous measurement through a wearable device. The goal is achieved according to the time-delay method, with the guiding principle of the time relation it takes for a blood volume to travel from the heart to a peripheral site. Inversely proportional to the blood pressure, this time relation is obtained as the time occurring between the R peak of the electrocardiographic signal and a marker point on the photoplethysmographic wave. Such physiological signals are recorded by using L.I.F.E. Italia’s wearable device, made of a sensorized shirt and wristband. A linear regression model is implemented to estimate the corresponding blood pressure variations from the obtained time-delay and other features of the photoplethysmographic wave. Then, according to the international standards, the model performance is assessed, comparing the estimates with the measurements provided by a certified digital sphygmomanometer. According to the standards, the results obtained during this study are notable, with 85% of the errors lower than 10 mmHg and a mean absolute error lower than 7 mmHg. In conclusion, this study suggests a time-delay method for continuous blood pressure estimates with good performance, compared with a reference device based on the oscillometric technique. MDPI 2021-11-04 /pmc/articles/PMC8588523/ /pubmed/34770641 http://dx.doi.org/10.3390/s21217334 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
De Marchi, Beatrice
Frigerio, Mattia
De Nadai, Silvia
Longinotti-Buitoni, Gianluigi
Aliverti, Andrea
Blood Pressure Continuous Measurement through a Wearable Device: Development and Validation of a Cuffless Method
title Blood Pressure Continuous Measurement through a Wearable Device: Development and Validation of a Cuffless Method
title_full Blood Pressure Continuous Measurement through a Wearable Device: Development and Validation of a Cuffless Method
title_fullStr Blood Pressure Continuous Measurement through a Wearable Device: Development and Validation of a Cuffless Method
title_full_unstemmed Blood Pressure Continuous Measurement through a Wearable Device: Development and Validation of a Cuffless Method
title_short Blood Pressure Continuous Measurement through a Wearable Device: Development and Validation of a Cuffless Method
title_sort blood pressure continuous measurement through a wearable device: development and validation of a cuffless method
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8588523/
https://www.ncbi.nlm.nih.gov/pubmed/34770641
http://dx.doi.org/10.3390/s21217334
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