Continuous monitoring of critically ill patients using photoplethysmography—the road to a less invasive ICU monitoring

IntroductionIntensive Care Medicine is based on continuous timely monitoring of physiological variables to guide modulation of therapy. This monitoring is often invasive, but there is a trend for the adoption of non-invasive devices, already largely used in wards and homecare, to reduce risk of devi...

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Main Authors: João Rosinhas, Rui Malheiro, João Tiago Pimenta, Ricardo Sá, Francisco Serdoura, José-Artur Paiva
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-05-01
Series:Frontiers in Digital Health
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Online Access:https://www.frontiersin.org/articles/10.3389/fdgth.2025.1605020/full
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author João Rosinhas
João Rosinhas
João Rosinhas
Rui Malheiro
Rui Malheiro
Rui Malheiro
Rui Malheiro
João Tiago Pimenta
João Tiago Pimenta
João Tiago Pimenta
Ricardo Sá
Francisco Serdoura
Francisco Serdoura
Francisco Serdoura
José-Artur Paiva
José-Artur Paiva
José-Artur Paiva
author_facet João Rosinhas
João Rosinhas
João Rosinhas
Rui Malheiro
Rui Malheiro
Rui Malheiro
Rui Malheiro
João Tiago Pimenta
João Tiago Pimenta
João Tiago Pimenta
Ricardo Sá
Francisco Serdoura
Francisco Serdoura
Francisco Serdoura
José-Artur Paiva
José-Artur Paiva
José-Artur Paiva
author_sort João Rosinhas
collection DOAJ
description IntroductionIntensive Care Medicine is based on continuous timely monitoring of physiological variables to guide modulation of therapy. This monitoring is often invasive, but there is a trend for the adoption of non-invasive devices, already largely used in wards and homecare, to reduce risk of device-associated side effects. The aim of this study was to assess the accuracy of a non-invasive equipment (Corsano Cardiowatch 287-2B) in the assessment of blood pressure, heart rate, temperature and oxygen saturation in critically ill patients admitted to the ICU.MethodThis prospective cohort study developed in an adult ICU admitting patients for level 3 and 2 of care compared the Corsano Cardiowatch 287-2B with the ICU standard monitoring, namely continuous electrocardiogram, invasive arterial blood pressure through arterial catheter, pulse oximeter and central thermometer. Concordance was assessed using the Bland-Altman test.ResultsNineteen patients were included in the study. The number of time-points included for comparison between the two monitoring strategies were more than 50,000 in pulse and heart rate, around 40,000 in oxygen saturation and body temperature and 1,200 in systolic and diastolic blood pressure. Bias for heart rate and pulse were −1.73 and −0.77, respectively. The limits of agreement were between −14.90 and 11.33, for heart rate, and −14.25 and 12.71, for pulse. Small biases were also estimated for oxygen saturation (0.21), with limits of agreement between −6.97 and 7.39, and body temperature (0.58), with limits between −1.12 and 2.47. Concordance was low for diastolic and systolic blood pressure, with bias of 5.18 and −11.27, respectively.ConclusionsCorsano Cardiowatch 287-2B reaches good levels of concordance compared to traditional ICU monitoring for heart and pulse rates and may be a valuable solution for their less invasive monitoring, with promising results for future operationalization for oxygen saturation and body temperature. Concordance is low for blood pressure, meaning the device is currently unsuitable for use with that purpose.
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spelling doaj-art-1e8ada8f424c49eb8fc9bb5463b2bffd2025-08-20T03:12:38ZengFrontiers Media S.A.Frontiers in Digital Health2673-253X2025-05-01710.3389/fdgth.2025.16050201605020Continuous monitoring of critically ill patients using photoplethysmography—the road to a less invasive ICU monitoringJoão Rosinhas0João Rosinhas1João Rosinhas2Rui Malheiro3Rui Malheiro4Rui Malheiro5Rui Malheiro6João Tiago Pimenta7João Tiago Pimenta8João Tiago Pimenta9Ricardo Sá10Francisco Serdoura11Francisco Serdoura12Francisco Serdoura13José-Artur Paiva14José-Artur Paiva15José-Artur Paiva16Serviço de Medicina Intensiva, Unidade Local de Saúde São João, Porto, PortugalDepartamento de Medicina, Faculdade de Medicina da Universidade do Porto, Porto, Portugal4LifeLAB, Laboratório Colaborativo, Porto, Portugal4LifeLAB, Laboratório Colaborativo, Porto, PortugalEPIUnit—Instituto de Saúde Pública, Universidade do Porto, Porto, PortugalUnidade de Saúde Pública São João, Unidade Local de São João, Porto, PortugalDepartamento de Ciências da Saúde Pública e Forenses, e Educação Médica, Faculdade de Medicina da Universidade do Porto, Porto, Portugal4LifeLAB, Laboratório Colaborativo, Porto, PortugalServiço de Cirurgia Geral, Unidade Local de Saúde São João, Porto, PortugalDepartamento de Cirurgia e Fisiologia, Faculdade de Medicina da Universidade do Porto, Porto, Portugal4LifeLAB, Laboratório Colaborativo, Porto, Portugal4LifeLAB, Laboratório Colaborativo, Porto, PortugalDepartamento de Cirurgia e Fisiologia, Faculdade de Medicina da Universidade do Porto, Porto, PortugalServiço de Ortopedia e Traumatologia, Unidade Local de Saúde São João, Porto, PortugalServiço de Medicina Intensiva, Unidade Local de Saúde São João, Porto, PortugalDepartamento de Medicina, Faculdade de Medicina da Universidade do Porto, Porto, PortugalDepartamento de Cirurgia e Fisiologia, Faculdade de Medicina da Universidade do Porto, Porto, PortugalIntroductionIntensive Care Medicine is based on continuous timely monitoring of physiological variables to guide modulation of therapy. This monitoring is often invasive, but there is a trend for the adoption of non-invasive devices, already largely used in wards and homecare, to reduce risk of device-associated side effects. The aim of this study was to assess the accuracy of a non-invasive equipment (Corsano Cardiowatch 287-2B) in the assessment of blood pressure, heart rate, temperature and oxygen saturation in critically ill patients admitted to the ICU.MethodThis prospective cohort study developed in an adult ICU admitting patients for level 3 and 2 of care compared the Corsano Cardiowatch 287-2B with the ICU standard monitoring, namely continuous electrocardiogram, invasive arterial blood pressure through arterial catheter, pulse oximeter and central thermometer. Concordance was assessed using the Bland-Altman test.ResultsNineteen patients were included in the study. The number of time-points included for comparison between the two monitoring strategies were more than 50,000 in pulse and heart rate, around 40,000 in oxygen saturation and body temperature and 1,200 in systolic and diastolic blood pressure. Bias for heart rate and pulse were −1.73 and −0.77, respectively. The limits of agreement were between −14.90 and 11.33, for heart rate, and −14.25 and 12.71, for pulse. Small biases were also estimated for oxygen saturation (0.21), with limits of agreement between −6.97 and 7.39, and body temperature (0.58), with limits between −1.12 and 2.47. Concordance was low for diastolic and systolic blood pressure, with bias of 5.18 and −11.27, respectively.ConclusionsCorsano Cardiowatch 287-2B reaches good levels of concordance compared to traditional ICU monitoring for heart and pulse rates and may be a valuable solution for their less invasive monitoring, with promising results for future operationalization for oxygen saturation and body temperature. Concordance is low for blood pressure, meaning the device is currently unsuitable for use with that purpose.https://www.frontiersin.org/articles/10.3389/fdgth.2025.1605020/fullICUmonitoringnon-invasivetele-ICUpulse
spellingShingle João Rosinhas
João Rosinhas
João Rosinhas
Rui Malheiro
Rui Malheiro
Rui Malheiro
Rui Malheiro
João Tiago Pimenta
João Tiago Pimenta
João Tiago Pimenta
Ricardo Sá
Francisco Serdoura
Francisco Serdoura
Francisco Serdoura
José-Artur Paiva
José-Artur Paiva
José-Artur Paiva
Continuous monitoring of critically ill patients using photoplethysmography—the road to a less invasive ICU monitoring
Frontiers in Digital Health
ICU
monitoring
non-invasive
tele-ICU
pulse
title Continuous monitoring of critically ill patients using photoplethysmography—the road to a less invasive ICU monitoring
title_full Continuous monitoring of critically ill patients using photoplethysmography—the road to a less invasive ICU monitoring
title_fullStr Continuous monitoring of critically ill patients using photoplethysmography—the road to a less invasive ICU monitoring
title_full_unstemmed Continuous monitoring of critically ill patients using photoplethysmography—the road to a less invasive ICU monitoring
title_short Continuous monitoring of critically ill patients using photoplethysmography—the road to a less invasive ICU monitoring
title_sort continuous monitoring of critically ill patients using photoplethysmography the road to a less invasive icu monitoring
topic ICU
monitoring
non-invasive
tele-ICU
pulse
url https://www.frontiersin.org/articles/10.3389/fdgth.2025.1605020/full
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