scholarly journals Investigation of Non-invasive Continuous Body Temperature Measurements in a Clinical Setting Using an Adhesive Axillary Thermometer (SteadyTemp®)

2021 ◽  
Vol 3 ◽  
Author(s):  
Johannes Boyer ◽  
Jakob Eckmann ◽  
Karl Strohmayer ◽  
Werner Koele ◽  
Moritz Federspiel ◽  
...  
Keyword(s):  
Body Temperature ◽  
Smartphone Application ◽  
Underlying Disease ◽  
Absolute Temperature ◽  
Temperature Measurements ◽  
Individual Factors ◽  
Multicentric Study ◽  
Non Invasive ◽  
Body Temperature Measurement ◽  
The Individual

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 Hence, a simple threshold for fever definition is outdated and a definition which relies on the relative changes in the individual seems reasonable as it takes these individual factors into account.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.

scholarly journals Non-invasive Body Temperature Measurement of Wild Chimpanzees Using Fecal Temperature Decline

2009 ◽  
Vol 45 (2) ◽  
pp. 542-546 ◽  
Author(s):  
Siv Aina Jensen ◽  
Roger Mundry ◽  
Charles L. Nunn ◽  
Christophe Boesch ◽  
Fabian H. Leendertz
Keyword(s):  
Body Temperature ◽  
Temperature Measurement ◽  
Non Invasive ◽  
Body Temperature Measurement

A Non-Invasive Body Temperature Measurements in Cow using IR Thermometry

2021 ◽  
Author(s):  
S MURUGESWARI ◽  
Kalpana Murugan ◽  
R. Sundaraprem
Keyword(s):  
Body Temperature ◽  
Rectal Temperature ◽  
Body Surface ◽  
The Body ◽  
Temperature Measurements ◽  
Extreme Temperatures ◽  
Non Invasive ◽  
Surface Temperatures ◽  
Abdominal Region ◽  
Measuring Surface

Abstract This research deals with continuous surface body temperature measurements in cow using IR based thermometry. Body surface temperatures were estimated contactless utilizing recordings from an IR thermometry fixed at a specific region in the cow. The body surface temperatures were dissected reflectively at two regions: the rectal region (behind the tail) and abdominal region (nearer the stomach) in the cow. The traditional invasive rectal temperature filled in as a kind of perspective temperature and was estimated with a computerized thermometer at the comparing time point. An aggregate of ten cows (Redsindhi, HF cross, Kangayam ) was inspected. The normal most extreme temperatures of the territory of the rectal (mean ± SD: 38.69 ± 0.5°C) and the abdominal region (38.4 ± 0.51°C). The temperatures of these regions in the cow were 95% accurate than the traditional invasive rectal temperature measurements. Notwithstanding, the most extreme temperatures as estimated utilizing IR thermometry expanded with an expansion in cow rectal temperature. These temperature readings are then been communicate to the remote server for continuous monitoring of the condition of cows. This communication is carried out by using Bluetooth/Wifi medium. Since this framework comes out with a non-invasive fashion measuring surface body temperature, will be an alternate way of taking a reading of temperature rather than computing the internal body temperature in an invasive fashion. Subsequently, this IR thermometry shows potential as a marker for consistent temperature estimations in cows.

Non-invasive methods of body temperature measurements in rats

2012 ◽  
Vol 66 (2) ◽  
pp. 192
Author(s):  
Helen Prior ◽  
Victoria Motyer ◽  
Louise Marks ◽  
Des Cobey ◽  
Lorna Ewart ◽  
...  
Keyword(s):  
Body Temperature ◽  
Temperature Measurements ◽  
Non Invasive

scholarly journals Accuracy of non-invasive body temperature measurement methods in critically ill patients: a prospective, bicentric, observational study

2021 ◽  
Vol 23 (3) ◽  
pp. 346-353
Author(s):  
Salvatore L Cutuli ◽  
◽  
Eduardo A Osawa ◽  
Christopher T Eyeington ◽  
Helena Proimos ◽  
...  
Keyword(s):  
Body Temperature ◽  
Temperature Measurement ◽  
Critically Ill ◽  
Core Temperature ◽  
Critically Ill Patients ◽  
Measurement Methods ◽  
Icu Patients ◽  
Explanatory Variables ◽  
Non Invasive ◽  
Body Temperature Measurement

Objective: The accuracy of different non-invasive body temperature measurement methods in intensive care unit (ICU) patients is uncertain. We aimed to study the accuracy of three commonly used methods. Design: Prospective observational study. Setting: ICUs of two tertiary Australian hospitals. Participants: Critically ill patients admitted to the ICU. Interventions: Invasive (intravascular and intra-urinary bladder catheter) and non-invasive (axillary chemical dot, tympanic infrared, and temporal scanner) body temperature measurements were taken at study inclusion and every 4 hours for the following 72 hours. Main outcome measures: Accuracy of non-invasive body temperature measurement methods was assessed by the Bland–Altman approach, accounting for repeated measurements and significant explanatory variables that were identified by regression analysis. Clinical adequacy was set at limits of agreement (LoA) of 1C compared with core temperature. Results: We studied 50 consecutive critically ill patients who were mainly admitted to the ICU after cardiac surgery. From over 375 observations, invasive core temperature (mostly pulmonary artery catheter) ranged from 33.9C to 39C. On average, the LoA between invasive and non-invasive measurements methods were about 3C. The temporal scanner showed the worst performance in estimating core temperature (bias, 0.66C; LoA, 1.23C, +2.55C), followed by tympanic infrared (bias, 0.44C; LoA, 1.73C, +2.61C) and axillary chemical dot methods (bias, 0.32°C; LoA, 1.64C, +2.28C). No methods achieved clinical adequacy even accounting for significant explanatory variables. Conclusions: The axillary chemical dot, tympanic infrared and temporal scanner methods are inaccurate measures of core temperature in ICU patients. These non-invasive methods appeared unreliable for use in ICU patients.

scholarly journals An Evaluation of Body Temperature Measurement

1983 ◽  
Vol 11 (1) ◽  
pp. 31-39 ◽  
Author(s):  
A. H. Ilsley ◽  
A. J. Rutten ◽  
W. B. Runciman
Keyword(s):  
Body Temperature ◽  
Temperature Measurement ◽  
Reference Value ◽  
Temperature Measurements ◽  
Axillary Temperature ◽  
Measuring Device ◽  
Temperature Measuring ◽  
Measuring Devices ◽  
Bladder Temperature ◽  
Body Temperature Measurement

The accuracy of routine body temperature measurements, the suitability of various sites for such measurements, and the performance and practicality of various temperature measuring devices were studied. Oral and axillary temperature measurements made by the nursing staff were within 1°C of a reference value (within 0.5 °C in 67%). Both sites were suitable for routine ward temperature measurement. Mercury-in-glass thermometers are recommended for routine ward use. Electronic and disposable chemical thermometers cost more but the latter are suitable in uncooperative patients and children. Forehead skin temperature measurements using liquid crystal plastic discs were unreliable. Pulmonary artery and rectal temperature measurements were satisfactory in operating theatre and intensive care unit; however, electronic thermometers should be subjected to routine checks. The bladder temperature measuring device proved unsuitable for clinical use. When oesophagus, nasopharynx and tympanum sites are used careful placement is necessary to minimise trauma and obtain reliable measurements.

scholarly journals Urinary Cytokines Reflect Renal Inflammation in Acute Tubulointerstitial Nephritis: A Multiplex Bead-Based Assay Assessment

2021 ◽  
Vol 10 (13) ◽  
pp. 2986
Author(s):  
Laura Martinez Valenzuela ◽  
Juliana Draibe ◽  
Oriol Bestard ◽  
Xavier Fulladosa ◽  
Francisco Gómez-Preciado ◽  
...  
Keyword(s):  
Tubulointerstitial Nephritis ◽  
Urinary Concentration ◽  
Blood Eosinophil ◽  
Acute Tubulointerstitial Nephritis ◽  
Luminex Assay ◽  
Non Invasive ◽  
Urinary Levels ◽  
Histological Data ◽  
The Individual ◽  
Multiplex Bead

Background: Acute tubulointerstitial nephritis (ATIN) diagnosis lays on histological assessment through a kidney biopsy, given the absence of accurate non-invasive biomarkers. The aim of this study was to evaluate the accuracy of different urinary inflammation-related cytokines for the diagnostic of ATIN and its distinction from acute tubular necrosis (ATN). Methods: We included 33 patients (ATIN (n = 21), ATN (n = 12)), and 6 healthy controls (HC). We determined the urinary levels of 10 inflammation-related cytokines using a multiplex bead-based Luminex assay at the time of biopsy and after therapy, and registered main clinical, analytical and histological data. Results: At the time of biopsy, urinary levels of I-TAC/CXCL11, CXCL10, IL-6, TNFα and MCP-1 were significantly higher in ATIN compared to HC. A positive correlation between the extent of the tubulointerstitial cellular infiltrates in kidney biopsies and the urinary concentration of I-TAC/CXCL11, MIG/CXCL9, CXCL10, IL17, IFNα, MCP1 and EGF was observed. Notably, I-TAC/CXCL11, IL-6 and MCP-1 were significantly higher in ATIN than in ATN, with I-TAC/CXCL11 as the best discriminative classifier AUC (0.77, 95% CI 0.57–0.95, p = 0.02). A combinatory model of these three urinary cytokines increased the accuracy in the distinction of ATIN/ATN compared to the individual biomarkers. The best model resulted when combining the three cytokines with blood eosinophil and urinary leukocyte counts (LR = 9.76). Follow-up samples from 11ATIN patients showed a significant decrease in I-TAC/CXCL11, MIG/CXCL9 and CXCL10 levels. Conclusions: Urinary I-TAC/CXCL11, CXCL10, IL6 and MCP-1 levels accurately distinguish patients developing ATIN from ATN and healthy individuals and may serve as novel non-invasive biomarkers in this disease.

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