3,232 research outputs found
Review of sensors for remote patient monitoring
Remote patient monitoring (RPM) of physiological
measurements can provide an efficient method and high
quality care to patients. The physiological signals
measurement is the initial and the most important factor
in RPM. This paper discusses the characteristics of the
most popular sensors, which are used to obtain vital
clinical signals in prevalent RPM systems.
The sensors discussed in this paper are used to measure
ECG, heart sound, pulse rate, oxygen saturation, blood
pressure and respiration rate, which are treated as the
most important vital data in patient monitoring and
medical examination
Detecting Vital Signs with Wearable Wireless Sensors
The emergence of wireless technologies and advancements in on-body sensor design can enable change in the conventional health-care system, replacing it with wearable health-care systems, centred on the individual. Wearable monitoring systems can provide continuous physiological data, as well as better information regarding the general health of individuals. Thus, such vital-sign monitoring systems will reduce health-care costs by disease prevention and enhance the quality of life with disease management. In this paper, recent progress in non-invasive monitoring technologies for chronic disease management is reviewed. In particular, devices and techniques for monitoring blood pressure, blood glucose levels, cardiac activity and respiratory activity are discussed; in addition, on-body propagation issues for multiple sensors are presented
Wearable devices for remote vital signs monitoring in the outpatient setting: an overview of the field
Early detection of physiological deterioration has been shown to improve patient outcomes. Due to recent improvements in technology, comprehensive outpatient vital signs monitoring is now possible. This is the first review to collate information on all wearable devices on the market for outpatient physiological monitoring.
A scoping review was undertaken. The monitors reviewed were limited to those that can function in the outpatient setting with minimal restrictions on the patientâs normal lifestyle, while measuring any or all of the vital signs: heart rate, ECG, oxygen saturation, respiration rate, blood pressure and temperature.
A total of 270 papers were included in the review. Thirty wearable monitors were examined: 6 patches, 3 clothing-based monitors, 4 chest straps, 2 upper arm bands and 15 wristbands. The monitoring of vital signs in the outpatient setting is a developing field with differing levels of evidence for each monitor. The most common clinical application was heart rate monitoring. Blood pressure and oxygen saturation measurements were the least common applications. There is a need for clinical validation studies in the outpatient setting to prove the potential of many of the monitors identified.
Research in this area is in its infancy. Future research should look at aggregating the results of validity and reliability and patient outcome studies for each monitor and between different devices. This would provide a more holistic overview of the potential for the clinical use of each device
Home monitoring of motor fluctuations in Parkinson's disease patients
In Parkinson's disease, motor fluctuations (worsening of tremor, bradykinesia, freezing of gait, postural instability) affect up to 70% of patients within 9 years of \textsc {l}-dopa therapy. Nevertheless, the assessment of motor fluctuations is difficult in a medical office, and is commonly based on poorly reliable self-reports. Hence, the use of wearable sensors is desirable. In this preliminary trial, we have investigated bradykinesia and freezing of gaitâFOGâsymptoms by means of inertial measurement units. To this purpose, we have employed a single smartphone on the patient's waist for FOG experiment (38 patients), and on patient thigh for LA (93 subjects). Given the sound performance achieved in this trial (AUC = 0.97 for FOG and AUC = 0.92 for LA), motor fluctuations may be estimated in domestic environments. To this end, we plan to perform measures and data processing on SensorTile, a tiny IoT module including several sensors, a microcontroller, a BlueTooth low-energy interface and microSD card, implementing an electronic diary of motor fluctuations, posture and dyskinesia during activity of daily living
A multi-channel opto-electronic sensor to accurately monitor heart rate against motion artefact during exercise
This study presents the use of a multi-channel opto-electronic sensor (OEPS) to effectively monitor critical physiological parameters whilst preventing motion artefact as increasingly demanded by personal healthcare. The aim of this work was to study how to capture the heart rate (HR) efficiently through a well-constructed OEPS and a 3-axis accelerometer with wireless communication. A protocol was designed to incorporate sitting, standing, walking, running and cycling. The datasets collected from these activities were processed to elaborate sport physiological effects. t-test, Bland-Altman Agreement (BAA), and correlation to evaluate the performance of the OEPS were used against Polar and Mio-Alpha HR monitors. No differences in the HR were found between OEPS, and either Polar or Mio-Alpha (both p > 0.05); a strong correlation was found between Polar and OEPS (r: 0.96, p < 0.001); the bias of BAA 0.85 bpm, the standard deviation (SD) 9.20 bpm, and the limits of agreement (LOA) from â17.18 bpm to +18.88 bpm. For the Mio-Alpha and OEPS, a strong correlation was found (r: 0.96, p < 0.001); the bias of BAA 1.63 bpm, SD 8.62 bpm, LOA from â15.27 bpm to +18.58 bpm. These results demonstrate the OEPS to be capable of carrying out real time and remote monitoring of heart rate
Hardware Prototype for Wrist-Worn Simultaneous Monitoring of Environmental, Behavioral, and Physiological Parameters
We designed a low-cost wrist-worn prototype for simultaneously measuring environmental, behavioral, and physiological domains of influencing factors in healthcare. Our prototype continuously monitors ambient elements (sound level, toxic gases, ultraviolet radiation, air pressure, temperature, and humidity), personal activity (motion tracking and body positioning using gyroscope, magnetometer, and accelerometer), and vital signs (skin temperature and heart rate). An innovative three-dimensional hardware, based on the multi-physical-layer approach is introduced. Using board-to-board connectors, several physical hardware layers are stacked on top of each other. All of these layers consist of integrated and/or add-on sensors to measure certain domain (environmental, behavioral, or physiological). The prototype includes centralized data processing, transmission, and visualization. Bi-directional communication is based on Bluetooth Low Energy (BLE) and can connect to smartphones as well as smart cars and smart homes for data analytic and adverse-event alerts. This study aims to develop a prototype for simultaneous monitoring of the all three areas for monitoring of workplaces and chronic obstructive pulmonary disease (COPD) patients with a concentration on technical development and validation rather than clinical investigation. We have implemented 6 prototypes which have been tested by 5 volunteers. We have asked the subjects to test the prototype in a daily routine in both indoor (workplaces and laboratories) and outdoor. We have not imposed any specific conditions for the tests. All presented data in this work are from the same prototype. Eleven sensors measure fifteen parameters from three domains. The prototype delivers the resolutions of 0.1 part per million (PPM) for air quality parameters, 1 dB, 1 index, and 1 °C for sound pressure level, UV, and skin temperature, respectively. The battery operates for 12.5 h under the maximum sampling rates of sensors without recharging. The final expense does not exceed 133âŹ. We validated all layers and tested the entire device with a 75 min recording. The results show the appropriate functionalities of the prototype for further development and investigations
Real-time human ambulation, activity, and physiological monitoring:taxonomy of issues, techniques, applications, challenges and limitations
Automated methods of real-time, unobtrusive, human ambulation, activity, and wellness monitoring and data analysis using various algorithmic techniques have been subjects of intense research. The general aim is to devise effective means of addressing the demands of assisted living, rehabilitation, and clinical observation and assessment through sensor-based monitoring. The research studies have resulted in a large amount of literature. This paper presents a holistic articulation of the research studies and offers comprehensive insights along four main axes: distribution of existing studies; monitoring device framework and sensor types; data collection, processing and analysis; and applications, limitations and challenges. The aim is to present a systematic and most complete study of literature in the area in order to identify research gaps and prioritize future research directions
Devices and Data Workflow in COPD Wearable Remote Patient Monitoring: A Systematic Review
Background: With global increase in Chronic Obstructive Pulmonary Disease (COPD)
prevalence and mortality rates, and socioeconomical burden continuing to rise, current
disease management strategies appear inadequate, paving the way for technological
solutions, namely remote patient monitoring (RPM), adoption considering its acute disease
events management benefit. One RPMâs category stands out, wearable devices, due to its
availability and apparent ease of use.
Objectives: To assess the current market and interventional solutions regarding wearable
devices in the remote monitoring of COPD patients through a systematic review design from
a device composition, data workflow, and collected parameters description standpoint.
Methods: A systematic review was conducted to identify wearable device trends in this
population through the development of a comprehensive search strategy, searching beyond
the mainstream databases, and aggregating diverse information found regarding the same
device. The Preferred Reporting Items for Systematic Reviews and Meta-Analysis
(PRISMA) guidelines were followed, and quality appraisal of identified studies was
performed using the Critical Appraisal Skills Programme (CASP) quality appraisal
checklists.
Results: The review resulted on the identification of 1590 references, of which a final 79
were included. 56 wearable devices were analysed, with the slight majority belonging to the
wellness devices class. Substantial device heterogeneity was identified regarding device
composition type and wearing location, and data workflow regarding 4 considered
components. Clinical monitoring devices are starting to gain relevance in the market and
slightly over a third, aim to assist COPD patients and healthcare professionals in
exacerbation prediction. Compliance with validated recommendations is still lacking, with
no devices assessing the totality of recommended vital signs.
Conclusions: The identified heterogeneity, despite expected considering the relative
novelty of wearable devices, alerts for the need to regulate the development and research of
these technologies, specially from a structural and data collection and transmission
standpoints.Introdução: Com o aumento global das taxas de prevalĂȘncia e mortalidade da Doença
Pulmonar Obstrutiva Crónica (DPOC) e o seu impacto socioeconómico, as atuais estratégias
de gestão da doença parecem inadequadas, abrindo caminho para soluçÔes tecnológicas,
nomeadamente para a adoção da monitorização remota, tendo em conta o seu benefĂcio na
gestão de exacerbaçÔes de doenças crónicas. Dentro destaca-se uma categoria, os
dispositivos wearable, pela sua disponibilidade e aparente facilidade de uso.
Objetivos: Avaliar as soluçÔes existentes, tanto no mercado, como na årea de investigação,
relativas a dispositivos wearable utilizados na monitorização remota de pacientes com
DPOC através de uma revisão sistemåtica, do ponto de vista da composição do dispositivo,
fluxo de dados e descrição dos parùmetros coletados.
MĂ©todos: Uma revisĂŁo sistemĂĄtica foi realizada para identificar tendĂȘncias destes
dispositivos, através do desenvolvimento de uma estratégia de pesquisa abrangente,
procurando pesquisar para além das databases convencionais e agregar diversas
informaçÔes encontradas sobre o mesmo dispositivo. Para tal, foram seguidas as diretrizes
PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses), e a
avaliação da qualidade dos estudos identificados foi realizada utilizando a ferramenta CASP
(Critical Appraisal Skills Programme).
Resultados: A revisĂŁo resultou na identificação de 1590 referĂȘncias, das quais 79 foram
incluĂdas. Foram analisados 56 dispositivos wearable, com a ligeira maioria a pertencer Ă
classe de dispositivos de wellness. Foi identificada heterogeneidade substancial nos
dispositivos em relação à sua composição, local de uso e ao fluxo de dados em relação a 4
componentes considerados. Os dispositivos de monitorização clĂnica jĂĄ evidenciam alguma
relevùncia no mercado e, pouco mais de um terço, visam auxiliar pacientes com DPOC e
profissionais de saĂșde na previsĂŁo de exacerbaçÔes. Ainda assim, Ă© notĂłria a falta do
cumprimento das recomendaçÔes validadas, nĂŁo estando disponĂveis dispositivos que
avaliem a totalidade dos sinais vitais recomendados.
ConclusĂŁo: A heterogeneidade identificada, apesar de esperada face Ă relativa novidade
dos dispositivos wearable, alerta para a necessidade de regulamentação do
desenvolvimento e investigação destas tecnologias, especialmente do ponto de vista
estrutural e de recolha e transmissĂŁo de dados
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