Abstract
Since the human body reacts to a variety of different diseases with elevated body temperature, measurement of body temperature remains relevant in clinical practice. The absolute temperature value for fever definition is still arbitrary and depends on the measuring site, as well as underlying disease and individual factors. Hence, a simple threshold for fever definition is outdated and a definition which relies on the relative changes in the individual seems reasonable as it takes these individual factors into account. In this prospective multicentric study we validate an adhesive axillary thermometer (SteadyTemp®) which allows continuous non-invasive temperature measurements. It consists of a patch to measure temperature and a smartphone application to process and visualize gathered data. This article provides information of the new diagnostic possibilities when using this wearable device and where it could be beneficial. Furthermore, it discusses how to interpret the generated data and when it is not practical to use, based on its characteristics and physiological phenomena.
Highlights
Body temperature measurements are used to determine the health status of humans
Reference Methods The SteadyTemp R -system has been compared to an established method of axillary temperature measurement using the Beurer FT 13 (Beurer GmbH, Ulm, Germany) or the Domotherm Rapid 10S (Uebe Medical GmbH, Külsheim, Germany) electronic axillary thermometers, both with an accuracy of ±0.1◦C for the range of 35.5–42 and ±0.2◦C for other temperature ranges according to the manufacturer
This is the first clinical evaluation of the SteadyTemp R -system indicating that it can be a useful device for surveillance, especially in populations which often do not reach absolute temperature levels recognized as fever by point wise peripheral measurement
Summary
Body temperature measurements are used to determine the health status of humans. Since the body reacts to a variety of different diseases with elevated body temperature, measurement of body temperature remains relevant in clinical practice. Fever is often defined as an elevated body temperature ≥38◦C (100.4◦F) [1] due to an increase of the central thermoregulation set point [2]. Detection of these elevated body temperature values almost certainly triggers further diagnostics and therapeutic measures, dependent on the prevailing health status. The evaluation of the body temperature of outpatients and hospitalized individuals is still common and useful practice in the clinical routine
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