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Clinical Trial Summary

The aim of this study is the evaluation of differences in heart rate variability (both time- and frequency-domain) [a]: between frail and non-frail patients and [b] at the beginning and end of a geriatric therapy which included rehabilitation components. Moreover, the suitability of new camera-based technology with regard to measurement of vital signs (heart rate, heart rate variability, respiratory rate) will be evaluated.


Clinical Trial Description

Frailty is an important geriatric syndrome, which indicates a reduced maximum resilience of patients and their organ system against external stressors. According to Fried's classification, frailty comprises of unintentional weight loss, exhaustion, muscle weakness, slowness while walking and low levels of activity. In geriatric patients, frailty is associated with a higher mortality and morbidity. Moreover, frailty patients are more often dependent on assistance after hospitalisation than non-frailty patients.

During geriatric therapy, geriatric patients are treated with multimodal rehabilitation comprising of activating nursing, physiotherapy, occupational therapy, psychiatric and speech therapy in order to increase mobility and patients' ability to help themselves. Success of rehabilitation measures is measured using the geriatric assessment (e.g. Barthel Index, Timed up and go test, Mini-Mental State Examination, Geriatric Depression Scale, measurement of hand power) at the beginning and end of the therapy. This geriatric therapy including the named geriatric assessment is not study-specific and is not prescribed by a study protocol, but is a routine treatment for frail patients.

Apart from these routinely used tests, recent literature indicated that heart rate variability, which can be easily measured with an ECG, could be an indicator for frailty. Beyond the medical problem whether heart rate variability can be used as a surrogate parameter for frailty, this study also has a technical aspect. In biomedical engineering, non-contact monitoring of vital signs has been an important and promising development in the last decade. Therefore, this study will also investigate if camera-based technologies such as photoplethysmography imaging (PPGI) and infrared thermography (IRT) can be used in a clinical environment for non-contact measurement of vital signs (heart rate, heart rate variability, respiratory rate) in geriatric patients. In this study, monitoring (with conventional and contactless technologies) should not trigger any observable/examining effect, but is merely a means to the end of observing the already existing HRV (and other vital parameters). ;


Study Design


Related Conditions & MeSH terms


NCT number NCT03585985
Study type Observational
Source RWTH Aachen University
Contact
Status Completed
Phase
Start date July 1, 2018
Completion date April 12, 2019

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