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Kavthekar SO, Chougule AA, Kavthekar SS, Kurane AB, Verma S. Assessment of preferable site for temperature measurement using non-contact infra-red temperature among pediatric patients. Minerva Pediatr (Torino) 2024; 76:7-12. [PMID: 32418406 DOI: 10.23736/s2724-5276.20.05755-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
BACKGROUND Accurate temperature measurement with little or no discomfort that is safe, without risk of hospital-acquired infections or perforations, is the preferred choice of medical professionals in pediatric settings. The objective was to discover the preferable site for body temperature measurement using non-contact infra-red thermometer (NCIT) among pediatric patients. METHODS NCIT measurement at mid forehead (F), right temporal region (T), right side of neck-over-carotid artery area (N), jugular notch (J), sternum (S), umbilical region and sublingual region (U) were compared with digital axillary temperature (DAT) in a single attempt in 500 patients, aged between 2 to 5 years with fever. Data was analyzed using Pearson's correlation, paired t-test and Bland-Altman plot to assess the correlation and agreement between the DAT and NCIT sites. RESULTS The mean temperature of NCIT-T (38.42±0.64 °C) was more agreeable with DAT (38.42±0.63 °C) compared to other body sites. The minimum mean bias of -0.00480 °C was noted for NCIT-F with 95% CI of -0.164-0.15; however, NCIT-F revealed many outliers as compared to NCIT-J. A strong positive correlation existed between DAT and NCIT sites (r value: 0.99-0.98). However, significant difference was found between DAT and NCIT-N, NCIT-F and NCIT-U (P<0.0001). CONCLUSIONS NCIT-J is the most preferable choice for measuring body temperature and can be interchanged with DAT. It will help to deliver fast results with enhanced patient comfort due to its non-invasive nature.
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Affiliation(s)
- Saiprasad O Kavthekar
- Department of Pediatrics, Dr D.Y. Patil Hospital and Research Center, D.Y. Patil Medical College, D.Y. Patil Education Society, Kolhapur, India
| | - Ashok A Chougule
- Department of Pediatrics, Dr D.Y. Patil Hospital and Research Center, D.Y. Patil Medical College, D.Y. Patil Education Society, Kolhapur, India -
| | - Swati S Kavthekar
- Department of Pathology, Dr D.Y. Patil Hospital and Research Center, D.Y. Patil Medical College, D.Y. Patil Education Society, Kolhapur, India
| | - Anil B Kurane
- Department of Pediatrics, Dr D.Y. Patil Hospital and Research Center, D.Y. Patil Medical College, D.Y. Patil Education Society, Kolhapur, India
| | - Sachin Verma
- Department of Pediatrics, Dr D.Y. Patil Hospital and Research Center, D.Y. Patil Medical College, D.Y. Patil Education Society, Kolhapur, India
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Eisenkraft A, Goldstein N, Fons M, Tabi M, Sherman AD, Ben Ishay A, Merin R, Nachman D. Comparing body temperature measurements using the double sensor method within a wearable device with oral and core body temperature measurements using medical grade thermometers-a short report. Front Physiol 2023; 14:1279314. [PMID: 38033330 PMCID: PMC10685445 DOI: 10.3389/fphys.2023.1279314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 11/02/2023] [Indexed: 12/02/2023] Open
Abstract
Introduction: Body temperature is essential for diagnosing, managing, and following multiple medical conditions. There are several methods and devices to measure body temperature, but most do not allow continuous and prolonged measurement of body temperature. Noninvasive skin temperature sensor combined with a heat flux sensor, also known as the "double sensor" technique, is becoming a valuable and simple method for frequently monitoring body temperature. Methods: Body temperature measurements using the "double sensor" method in a wearable monitoring device were compared with oral and core body temperature measurements using medical grade thermometers, analyzing data from two prospective clinical trials of different clinical scenarios. One study included 45 hospitalized COVID-19 patients in which oral measurements were taken using a hand-held device, and the second included 18 post-cardiac surgery patients in which rectal measurements were taken using a rectal probe. Results: In study 1, Bland-Altman analysis showed a bias of -0.04°C [0.34-(-0.43)°C, 95% LOA] with a correlation of 99.4% (p < 0.001). In study 2, Bland-Altman analysis showed a bias of 0.0°C [0.27-(-0.28)°C, 95% LOA], and the correlation was 99.3% (p < 0.001). In both studies, stratifying patients based on BMI and skin tone showed high accordance in all sub-groups. Discussion: The wearable monitor showed high correlation with oral and core body temperature measurements in different clinical scenarios.
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Affiliation(s)
- Arik Eisenkraft
- Institute for Research in Military Medicine, Faculty of Medicine, The Hebrew University of Jerusalem and the Israel Defense Force Medical Corps, Jerusalem, Israel
- Biobeat Technologies Ltd., Petah Tikva, Israel
| | | | - Meir Fons
- Biobeat Technologies Ltd., Petah Tikva, Israel
| | | | | | | | - Roei Merin
- Biobeat Technologies Ltd., Petah Tikva, Israel
| | - Dean Nachman
- Institute for Research in Military Medicine, Faculty of Medicine, The Hebrew University of Jerusalem and the Israel Defense Force Medical Corps, Jerusalem, Israel
- Heart Institute, Hadassah Medical Center, The Hebrew University of Jerusalem, Jerusalem, Israel
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3
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Oh S, Yoo JY, Maeng WY, Yoo S, Yang T, Slattery SM, Pessano S, Chang E, Jeong H, Kim J, Ahn HY, Kim Y, Kim J, Xu S, Weese-Mayer DE, Rogers JA. Simple, miniaturized biosensors for wireless mapping of thermoregulatory responses. Biosens Bioelectron 2023; 237:115545. [PMID: 37517336 DOI: 10.1016/j.bios.2023.115545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 07/11/2023] [Accepted: 07/21/2023] [Indexed: 08/01/2023]
Abstract
Temperature is the most commonly collected vital sign in all of clinical medicine; it plays a critical role in care decisions related to topics ranging from infection to inflammation, sleep, and fertility. Most assessments of body temperature occur at isolated anatomical locations (e.g. axilla, rectum, temporal artery, or oral cavity). Even this relatively primitive mode for monitoring can be challenging with vulnerable patient populations due to physical encumbrances and artifacts associated with the sizes, weights, shapes and mechanical properties of the sensors and, for continuous monitoring, their hard-wired interfaces to data collection units. Here, we introduce a simple, miniaturized, lightweight sensor as a wireless alternative, designed to address demanding applications such as those related to the care of neonates in high ambient humidity environments with radiant heating found in incubators in intensive care units. Such devices can be deployed onto specific anatomical locations of premature infants for homeostatic assessments. The estimated core body temperature aligns, to within 0.05 °C, with clinical grade, wired sensors, consistent with regulatory medical device requirements. Time-synchronized, multi-device operation across multiple body locations supports continuous, full-body measurements of spatio-temporal variations in temperature and additional modes of determining tissue health status in the context of sepsis detection and various environmental exposures. In addition to thermal sensing, these same devices support measurements of a range of other essential vital signs derived from thermo-mechanical coupling to the skin, for applications ranging from neonatal and infant care to sleep medicine and even pulmonary medicine.
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Affiliation(s)
- Seyong Oh
- Division of Electrical Engineering, Hanyang University ERICA, Ansan, 15588, Republic of Korea; Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA.
| | - Jae-Young Yoo
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
| | - Woo-Youl Maeng
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
| | - Seonggwang Yoo
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
| | - Tianyu Yang
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
| | - Susan M Slattery
- Stanley Manne Children's Research Institute, Ann & Robert H Lurie Children's Hospital of Chicago, Chicago, IL, 60611, USA; Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA
| | - Sara Pessano
- Stanley Manne Children's Research Institute, Ann & Robert H Lurie Children's Hospital of Chicago, Chicago, IL, 60611, USA
| | - Emily Chang
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
| | - Hyoyoung Jeong
- Department of Electrical and Computer Engineering, University of California Davis, Davis, CA, 95616, USA
| | - Jihye Kim
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
| | - Hak-Young Ahn
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
| | - Yeongdo Kim
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA
| | - Joohee Kim
- Center for Bionics, Biomedical Research Division, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea
| | - Shuai Xu
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA; Sibel Health, Niles, IL, 60714, USA
| | - Debra E Weese-Mayer
- Stanley Manne Children's Research Institute, Ann & Robert H Lurie Children's Hospital of Chicago, Chicago, IL, 60611, USA; Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA
| | - John A Rogers
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL, 60208, USA.
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4
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Lewek P, Banaś I, Witkowski K, Lewek J, Kardas P. The prevalence of symptoms and its correlation with sex in polish COVID-19 adult patients: Cross-sectional online open survey. Front Med (Lausanne) 2023; 10:1121558. [PMID: 37089602 PMCID: PMC10113468 DOI: 10.3389/fmed.2023.1121558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Accepted: 02/23/2023] [Indexed: 04/08/2023] Open
Abstract
BackgroundThe understanding and treatment of COVID-19 has improved rapidly since December 2019 when SARS-CoV-2 was sequenced. However most papers on its symptomatology focus on hospitalized patients and address only a limited number of major presentations. Although differences depending on sex of COVID-19 patients have been previously confirmed (higher ICU admission and higher death rate for men), no publication has focused on sex-related differences in COVID-19 symptomatology.ObjectiveThe aim of the study was to present a reliable list of COVID-19 symptoms and identify any differences in symptom prevalence depending on sex.MethodsA sample of Polish patients suffering from COVID-19 were surveyed using a cross-sectional anonymous online survey in Polish available on a web-based surveying platform (Survey Monkey). The survey included 20 questions asking about COVID-19 symptoms, days of occurrence (from day 1 until day 14 and “15 days or more”) and patient characteristics including sex, age, height, weight, place of residence and type of therapy received during COVID-19. The survey was made available during the third COVID-19 wave in Poland. The link to the survey was distributed across social networks. Participation was open to anyone willing, without any incentives. The data was analyzed statistically.ResultsSurvey responses were collected from 2,408 participants (56.9% women) aged 18–90 (42 ± 12), 84.7% living in cities, who took part in the study between December 2020 and February 2021. Out of 54 predefined symptoms, the three most prevalent were fatigue (reported by 87.61% respondents), anosmia (73.74%) and headache (69.89%). Women were found to be more symptomatic than men, 31 symptoms occurred more often in women (including anosmia, headache and myalgias, p < 0.05). Subfebrility, fever and hemoptysis were more prevalent in men. Twelve symptoms (incl. hypothermia, sneezing and nausea) lasted longer in women than men (p < 0.05). Fatigue, cough, nasal dryness, xerostomia and polydipsia were the longest lasting symptoms of COVID-19 (lasted over 14 days).ConclusionOur study presents a wide range of symptoms, which may enable better recognition of COVID-19, especially in an outpatient setting. Understanding these differences in the symptomatology of community and hospitalized patients may help diagnose and treat patients faster and more accurately. Our findings also confirmed differences in symptomatology of COVID-19 between men and women, which may lay the foundation for a better understanding of the different courses of this disease in the sexes. Further studies are necessary to understand whether a different presentation correlates with a different outcome.
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Affiliation(s)
- Pawel Lewek
- Department of Family Medicine, Medical University of Lodz, Łódź, Poland
- *Correspondence: Pawel Lewek,
| | - Izabela Banaś
- Department of Family Medicine, Medical University of Lodz, Łódź, Poland
| | - Konrad Witkowski
- Department of Family Medicine, Medical University of Lodz, Łódź, Poland
| | - Joanna Lewek
- Department of Preventive Cardiology and Lipidology, Chair of Nephrology and Hypertension, Medical University of Lodz, Łódź, Poland
- Department of Cardiology and Adult Congenital Heart Diseases, Polish Mother's Memorial Hospital Research Institute (PMMHRI), Łódź, Poland
| | - Przemyslaw Kardas
- Department of Family Medicine, Medical University of Lodz, Łódź, Poland
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Odabasi E, Turan M. The importance of body core temperature evaluation in balneotherapy. INTERNATIONAL JOURNAL OF BIOMETEOROLOGY 2022; 66:25-33. [PMID: 34623501 DOI: 10.1007/s00484-021-02201-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 09/17/2021] [Accepted: 10/04/2021] [Indexed: 06/13/2023]
Abstract
It is not wrong to say that there are no application standards or best practices in balneotherapy considering traditional applications. There is not enough information about how changes in body temperature, duration, and frequency of exposure to heat affect therapeutic outcomes of balneotherapeutic applications. Body core temperature (BCT) is probably the best parameter for expressing the heat load of the body and can be used to describe the causal relationship between heat exposure and its effects. There are several reasons to take BCT changes into account; for example, it can be used for individualized treatment planning, defining the consequences of thermal effects, developing disease-specific approaches, avoiding adverse effects, and designing clinical trials. The reasons why BCT changes should be considered instead of conventional measures will be discussed while explaining the effects of balneotherapy in this article, along with a discussion of BCT measurement in balneotherapy practice.
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Affiliation(s)
- Ersin Odabasi
- Department of Medical Ecology and Hydroclimatology, Gulhane Faculty of Medicine, University of Health Science, Gulhane EAH, 06018, Etlik, Ankara, Turkey.
| | - Mustafa Turan
- Department of Medical Education and Informatics, TOBB Faculty of Medicine, TOBB University of Economics and Technology, Ankara, Turkey
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Alayed Y, Kilani MA, Hommadi A, Alkhalifah M, Alhaffar D, Bashir M. Accuracy of the Axillary Temperature Screening Compared to Core Rectal Temperature in Infants. Glob Pediatr Health 2022; 9:2333794X221107481. [PMID: 35755196 PMCID: PMC9218445 DOI: 10.1177/2333794x221107481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 05/29/2022] [Indexed: 11/17/2022] Open
Abstract
Purpose. To compare the sensitivity of axillary and rectal temperature in infants who presents to the emergency department with a recent history of fever. Methods. A single-center cross-sectional comparative study of 201 patients who presents with a recent history of fever. Infants Up to 12 months of age were included. Demographic characteristics such as age and gender, weight, mean axillary and rectal temperatures were documented. Fever is defined as rectal temperature >38°C as opposed to >37.4 in the axillary method. Results. The mean age was 6.1 ± 3.5 months. The mean (SD) rectal-axillary temperature difference was 0.8°C ± 0.7°C which was statistically significant ( P < .001). The sensitivity, specificity, positive predictive and negative predictive values of the axillary method for fever >37.4 were 79.34% (95% CI [73-84.9]), 14.3% (95% CI [0.36-57.9]), 96.2% (95% CI [95-97.2]), and 2.4% (95% CI [0.4-13.5]), respectively. Conclusion. The rectal method remains highly important for accurate and prompt diagnosis in infants.
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Affiliation(s)
- Yazeed Alayed
- Paediatric Resident, King Saud Medical City, Paediatric Hospital, Riyadh, Saudi Arabia
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7
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Mirjalali S, Peng S, Fang Z, Wang C, Wu S. Wearable Sensors for Remote Health Monitoring: Potential Applications for Early Diagnosis of Covid-19. ADVANCED MATERIALS TECHNOLOGIES 2022; 7:2100545. [PMID: 34901382 PMCID: PMC8646515 DOI: 10.1002/admt.202100545] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 07/22/2021] [Indexed: 05/11/2023]
Abstract
Wearable sensors are emerging as a new technology to detect physiological and biochemical markers for remote health monitoring. By measuring vital signs such as respiratory rate, body temperature, and blood oxygen level, wearable sensors offer tremendous potential for the noninvasive and early diagnosis of numerous diseases such as Covid-19. Over the past decade, significant progress has been made to develop wearable sensors with high sensitivity, accuracy, flexibility, and stretchability, bringing to reality a new paradigm of remote health monitoring. In this review paper, the latest advances in wearable sensor systems that can measure vital signs at an accuracy level matching those of point-of-care tests are presented. In particular, the focus of this review is placed on wearable sensors for measuring respiratory behavior, body temperature, and blood oxygen level, which are identified as the critical signals for diagnosing and monitoring Covid-19. Various designs based on different materials and working mechanisms are summarized. This review is concluded by identifying the remaining challenges and future opportunities for this emerging field.
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Affiliation(s)
- Sheyda Mirjalali
- School of EngineeringMacquarie University SydneySydneyNSW2109Australia
| | - Shuhua Peng
- School of Mechanical and Manufacturing EngineeringUniversity of New South WalesSydneyNSW2052Australia
| | | | - Chun‐Hui Wang
- School of Mechanical and Manufacturing EngineeringUniversity of New South WalesSydneyNSW2052Australia
| | - Shuying Wu
- School of EngineeringMacquarie University SydneySydneyNSW2109Australia
- School of Mechanical and Manufacturing EngineeringUniversity of New South WalesSydneyNSW2052Australia
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8
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Kumar A, Kumar A. Contactless temperature and distance measuring device: A low-cost, novel infrared -based. AIMS ELECTRONICS AND ELECTRICAL ENGINEERING 2022. [DOI: 10.3934/electreng.2022004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
<abstract>
<p>This work eases the feasibility of infrared thermometer application and reliability to introduce a novel design with upgraded applications & functions. The custom-designed compact device "Badge" structured comprises the operative methods through the electronic packages of an optimal level. The physical and social distance measured by the ToF (Time of Flight) infrared laser sensor within 1 m from the subject and the measuring equipment (MLX90632 SMD QFN and VL530LX ToF). When the distance is not maintained, or the physical distance condition is not met, the flashing LED, or vibration should trigger an indication (warning for physical distancing and alteration for pyrexia warning, respectively). Statistical analysis and simulation-based studies criticized the accuracy of ±0.5°F and relational model of the independent and dependent variable for this device with significant R<sup>2</sup> = 0.99 and P < = 1; values with the lowest accuracy error of ±0.2°F and least residual sum of squares 0.01462 values. The portable, lightweight, and dynamic body temperature monitoring altered the application from static to continuous, complete structural design. This alternative provides the best technique to combine worn (personnel) medical devices with primary healthcare instruments to help body temperature measurements that are not contactable, fast, and accurate. It builds a way of processing through the protocol Covid-19.</p>
</abstract>
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Mah AJ, Ghazi Zadeh L, Khoshnam Tehrani M, Askari S, Gandjbakhche AH, Shadgan B. Studying the Accuracy and Function of Different Thermometry Techniques for Measuring Body Temperature. BIOLOGY 2021; 10:biology10121327. [PMID: 34943242 PMCID: PMC8698704 DOI: 10.3390/biology10121327] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 11/28/2021] [Accepted: 12/13/2021] [Indexed: 06/14/2023]
Abstract
The purpose of this study was to determine which thermometry technique is the most accurate for regular measurement of body temperature. We compared seven different commercially available thermometers with a gold standard medical-grade thermometer (Welch-Allyn): four digital infrared thermometers (Wellworks, Braun, Withings, MOBI), one digital sublingual thermometer (Braun), one zero heat flux thermometer (3M), and one infrared thermal imaging camera (FLIR One). Thirty young healthy adults participated in an experiment that altered core body temperature. After baseline measurements, participants placed their feet in a cold-water bath while consuming cold water for 30 min. Subsequently, feet were removed and covered with a blanket for 30 min. Throughout the session, temperature was recorded every 10 min with all devices. The Braun tympanic thermometer (left ear) had the best agreement with the gold standard (mean error: 0.044 °C). The FLIR One thermal imaging camera was the least accurate device (mean error: -0.522 °C). A sign test demonstrated that all thermometry devices were significantly different than the gold standard except for the Braun tympanic thermometer (left ear). Our study showed that not all temperature monitoring techniques are equal, and suggested that tympanic thermometers are the most accurate commercially available system for the regular measurement of body temperature.
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Affiliation(s)
- Aaron James Mah
- Implantable Biosensing Laboratory, ICORD, Vancouver, BC V5Z 1M9, Canada; (L.G.Z.); (M.K.T.); (S.A.); (B.S.)
- Department of Pathology & Laboratory Medicine, University of British Columbia, Vancouver, BC V6T 1Z7, Canada
| | - Leili Ghazi Zadeh
- Implantable Biosensing Laboratory, ICORD, Vancouver, BC V5Z 1M9, Canada; (L.G.Z.); (M.K.T.); (S.A.); (B.S.)
- Department of Orthopedics, University of British Columbia, Vancouver, BC V6T 1Z7, Canada
| | - Mahta Khoshnam Tehrani
- Implantable Biosensing Laboratory, ICORD, Vancouver, BC V5Z 1M9, Canada; (L.G.Z.); (M.K.T.); (S.A.); (B.S.)
- Department of Orthopedics, University of British Columbia, Vancouver, BC V6T 1Z7, Canada
| | - Shahbaz Askari
- Implantable Biosensing Laboratory, ICORD, Vancouver, BC V5Z 1M9, Canada; (L.G.Z.); (M.K.T.); (S.A.); (B.S.)
- Department of Electrical Engineering, University of British Columbia, Vancouver, BC V6T 1Z7, Canada
| | - Amir H. Gandjbakhche
- Section on Analytical and Functional Biophotonics, National Institute of Child Health and Human Development, Rockville, MD 20847, USA;
| | - Babak Shadgan
- Implantable Biosensing Laboratory, ICORD, Vancouver, BC V5Z 1M9, Canada; (L.G.Z.); (M.K.T.); (S.A.); (B.S.)
- Department of Pathology & Laboratory Medicine, University of British Columbia, Vancouver, BC V6T 1Z7, Canada
- Department of Orthopedics, University of British Columbia, Vancouver, BC V6T 1Z7, Canada
- Department of Electrical Engineering, University of British Columbia, Vancouver, BC V6T 1Z7, Canada
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10
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Jasani M, Jasani A, Shah A, Shah A. Measurement of Body Temperature in Postsurgical Children: Comparisons of Infrared Nonskin Contact Digital Thermometer, Skin Contact Digital Thermometer, and Mercury in Glass Thermometer. J Indian Assoc Pediatr Surg 2021; 26:324-326. [PMID: 34728918 PMCID: PMC8515526 DOI: 10.4103/jiaps.jiaps_188_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 11/22/2020] [Accepted: 02/04/2021] [Indexed: 11/04/2022] Open
Abstract
Context: Postoperative fever is known to occur after all surgical procedures irrespective of the type of anesthesia. Thermometry devices that work without touching or disturbing the child seem to be appreciated more than the conventional skin contact thermometers. However, whether this technology is reliable to be adapted for routine pediatric surgical care is debatable. Aims: The aim of this study was to study the accuracy of infrared nonskin contact digital thermometer (IRT) compared to the skin contact digital thermometer (DT) and mercury in glass thermometer (MT). Settings and Design: A prospective cross-sectional study was done in postoperative patients at a pediatric surgical center over a period of 3 months. Subjects and Methods: The forehead temperature was recorded with IRT. This was followed by recording the temperature in one armpit by DT and the other armpit by MT. Readings were promptly documented. Statistical Analysis Used: A sample t-test was done which gave the P value and mean. Linear regression analysis was carried out to find correlation coefficients. Bland–Altman test was used to access the concordance between all readings. Results: We found a strong correlation between temperature readings taken by DT (mean = −0.03, r = 0.07, slope = −0.04) and IRT (mean = 0.89, r = 0.091, slope = −0.14). However, on comparison of results with the MT, there are wider limits of agreement with the IRT (−0.31–2.09) in comparison to DT (−0.66–0.59). Conclusion: Skin contact digital thermometer are more accurate and suitable for checking body temperature as compared to infrared nonskin contact digital thermometer in postoperative pediatric patients.
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Affiliation(s)
- Mitul Jasani
- Amardeep Multispeciality Children Hospital and Research Centre, Ahmedabad, Gujarat, India
| | - Alpa Jasani
- Amardeep Multispeciality Children Hospital and Research Centre, Ahmedabad, Gujarat, India
| | - Anirudh Shah
- Amardeep Multispeciality Children Hospital and Research Centre, Ahmedabad, Gujarat, India
| | - Amar Shah
- Amardeep Multispeciality Children Hospital and Research Centre, Ahmedabad, Gujarat, India
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11
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Dante A, Gaxhja E, Masotta V, La Cerra C, Caponnetto V, Petrucci C, Lancia L. Evaluating the interchangeability of infrared and digital devices with the traditional mercury thermometer in hospitalized pediatric patients: an observational study. Sci Rep 2021; 11:17014. [PMID: 34426635 PMCID: PMC8382823 DOI: 10.1038/s41598-021-96587-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 07/26/2021] [Indexed: 11/24/2022] Open
Abstract
Gradual replacement of the mercury thermometers with alternative devices is ongoing around the world in a bid to protect human health and the environment from the adverse effects of mercury. However, to reduce the risks of misdiagnosis, unnecessary treatments, and omission of care in pediatric populations, more evidence on the reliability of alternative thermometers is needed. The aim of this comparative observational study was to detect any differences in temperature measurements between the use of the axillary mercury thermometer and the alternative techniques. Temperature values in degree Celsius (°C) were measured in a group of Albanian children aged up to 14 years using mercury and digital axillary thermometers, as well as forehead and tympanic infrared thermometers. The digital axillary device, compared with the mercury one, showed no clinically significant difference in the mean values (− 0.04 ± 0.29 °C) and the narrowest 95% level of agreement (+ 0.53 °C to − 0.62 °C) in the paired comparisons. For cut-off point of 37.5 °C, the digital axillary thermometer showed the highest levels of sensitivity (72.5%) and specificity (99.1%) in detecting fever. This study indicates that the digital axillary thermometer may be the better option since it adequately balances accuracy, safety, and children’s comfort.
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Affiliation(s)
- Angelo Dante
- Department of Life, Health & Environmental Sciences, University of L'Aquila, Rita Levi Montalcini Building - G. Petrini Street, 67010, L'Aquila, Italy.
| | - Elona Gaxhja
- Department of Life, Health & Environmental Sciences, University of L'Aquila, Rita Levi Montalcini Building - G. Petrini Street, 67010, L'Aquila, Italy
| | - Vittorio Masotta
- Department of Life, Health & Environmental Sciences, University of L'Aquila, Rita Levi Montalcini Building - G. Petrini Street, 67010, L'Aquila, Italy
| | - Carmen La Cerra
- Department of Life, Health & Environmental Sciences, University of L'Aquila, Rita Levi Montalcini Building - G. Petrini Street, 67010, L'Aquila, Italy
| | - Valeria Caponnetto
- Department of Life, Health & Environmental Sciences, University of L'Aquila, Rita Levi Montalcini Building - G. Petrini Street, 67010, L'Aquila, Italy
| | - Cristina Petrucci
- Department of Life, Health & Environmental Sciences, University of L'Aquila, Rita Levi Montalcini Building - G. Petrini Street, 67010, L'Aquila, Italy
| | - Loreto Lancia
- Department of Life, Health & Environmental Sciences, University of L'Aquila, Rita Levi Montalcini Building - G. Petrini Street, 67010, L'Aquila, Italy
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Dunne EA, Cunningham K, O'Donnell CPF, McCarthy LK. Bench-top comparison of thermometers used in newborn infants. Arch Dis Child Fetal Neonatal Ed 2021; 106:435-437. [PMID: 33372006 DOI: 10.1136/archdischild-2020-320123] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 12/05/2020] [Accepted: 12/14/2020] [Indexed: 11/04/2022]
Abstract
We wished to determine the accuracy of thermometers used to measure temperature in newborn infants. We measured the temperature of a water bath with three types of thermometer set at 0.5°C increments between 32.5°C and 38.5°C and compared the values to a control. We recorded the time to display steady-state temperature. The Microlife thermometer most closely approximated control temperature (mean difference <0.1°C (SD<0.1°C)) and displayed a reading in a mean time of 29 s (SD 2 s). Used in 'predictive' (default) mode, the Welch Allyn SureTemp Plus 692 thermometer differed from the control by a mean of 0.6°C (SD 0.3°C), displaying a temperature at 15 s (SD 3 s). This device consistently overestimated temperature. In 'continuous' mode, the mean difference was <0.1°C (SD<0.1°C) at 5 min. The Phillips probe differed from the control by a mean of 0.4°C (SD 0.2°C). Thermometers used to measure temperature in newborn infants may underestimate hypothermia. A prospective study in newborn infants is needed.
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Affiliation(s)
- Emma A Dunne
- Department of Neonatology, National Maternity Hospital, Dublin, Ireland.,School of Medicine, University College Dublin, Dublin, Ireland
| | - Katie Cunningham
- Department of Neonatology, National Maternity Hospital, Dublin, Ireland.,School of Medicine, University College Dublin, Dublin, Ireland
| | - Colm Patrick Finbarr O'Donnell
- Department of Neonatology, National Maternity Hospital, Dublin, Ireland.,School of Medicine, University College Dublin, Dublin, Ireland
| | - Lisa K McCarthy
- Department of Neonatology, National Maternity Hospital, Dublin, Ireland .,School of Medicine, University College Dublin, Dublin, Ireland
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13
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Fabrication of Thermochromic Membrane and Its Characteristics for Fever Detection. MATERIALS 2021; 14:ma14133460. [PMID: 34206427 PMCID: PMC8269493 DOI: 10.3390/ma14133460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 06/11/2021] [Accepted: 06/15/2021] [Indexed: 11/16/2022]
Abstract
Body temperature is an important indicator of the health status of the human body. Thus, numerous studies have been conducted in various fields to measure body temperature. In this study, a biocompatible thermochromic membrane that changes its color when the temperature becomes higher than the transition temperature for thermochromism was fabricated using an extrusion-based three-dimensional printing process. The printing material was prepared by mixing a thermochromic pigment and a thermoplastic polymer in various ratios. The effects of mixing ratio on the various properties of the fabricated membranes were experimentally investigated. It is presented that the fabricated lattice membrane had excellent thermochromic reaction, which was experimentally evaluated using a measurement of color brightness. The pigment content affected the diameter and surface morphology of the printed filament. The elastic modulus decreased, and thermochromic response became faster as the pigment concentration increased. Subsequently, a patch for fever detection was developed and then attached to the skin to demonstrate its color change according to body temperature. Results show that the fabricated thermochromic patch could be successfully applied to fever detection.
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14
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On-body wearable device localization with a fast and memory efficient SVM-kNN using GPUs. Pattern Recognit Lett 2020. [DOI: 10.1016/j.patrec.2017.10.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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15
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Watanabe K, Sakai T, Kato S, Hashizume N, Horii N, Yoshikawa M, Hasegawa N, Iemitsu K, Tsuji K, Uchida M, Kanamori M, Iemitsu M. Conduction Velocity of Muscle Action Potential of Knee Extensor Muscle During Evoked and Voluntary Contractions After Exhaustive Leg Pedaling Exercise. Front Physiol 2020; 11:546. [PMID: 32536878 PMCID: PMC7267216 DOI: 10.3389/fphys.2020.00546] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 04/30/2020] [Indexed: 11/13/2022] Open
Abstract
Purpose Muscle fiber conduction velocity (CV) has been developed to estimate neuromuscular fatigue and measured during voluntary (VC) and electrically evoked (EC) contractions. Since CV during VC and EC reflect different physiological phenomena, the two parameters would show inconsistent changes under the conditions of neuromuscular fatigue. We investigated the time-course changes of CV during EC and VC after fatiguing exercise. Methods In 14 young males, maximal voluntary contraction (MVC) of knee extensor muscles, CV during electrical stimulation (CV-EC) and MVC (CV-VC) were measured before and immediately, 30 min, 60 min, 120 min, and 24 h after exhaustive leg pedaling exercise. Results CV-EC significantly increased immediately after the fatiguing exercise (p < 0.05) and had a significant negative correlation with MVC in merged data from all time-periods (r = -0.511, p < 0.001). CV-VC significantly decreased 30, 60, and 120 min after the fatiguing exercise (p < 0.05) and did not show any correlations with MVC (p > 0.05). Conclusion These results suggest that CV during EC and VC exhibits different time-course changes, and that CV during EC may be appropriate to estimate the degree of neuromuscular fatigue after fatiguing pedaling exercise.
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Affiliation(s)
- Kohei Watanabe
- Laboratory of Neuromuscular Biomechanics, School of International Liberal Studies, Chukyo University, Nagoya, Japan
| | - Taiki Sakai
- Faculty of Sport and Health Science, Ritsumeikan University, Kusatsu, Japan
| | - Shosaku Kato
- Faculty of Sport and Health Science, Ritsumeikan University, Kusatsu, Japan
| | - Natsuka Hashizume
- Faculty of Sport and Health Science, Ritsumeikan University, Kusatsu, Japan
| | - Naoki Horii
- Faculty of Sport and Health Science, Ritsumeikan University, Kusatsu, Japan.,Research Fellow of Japan Society for the Promotion of Science, Tokyo, Japan
| | - Maki Yoshikawa
- Faculty of Sport and Health Science, Ritsumeikan University, Kusatsu, Japan
| | - Natsuki Hasegawa
- Research Organization of Science and Technology, Ritsumeikan University, Kusatsu, Japan
| | - Keiko Iemitsu
- Faculty of Sport and Health Science, Ritsumeikan University, Kusatsu, Japan
| | - Katsunori Tsuji
- Faculty of Sport and Health Science, Ritsumeikan University, Kusatsu, Japan
| | - Masakata Uchida
- Faculty of Sport and Health Science, Ritsumeikan University, Kusatsu, Japan
| | - Masao Kanamori
- Faculty of Sport and Health Science, Ritsumeikan University, Kusatsu, Japan
| | - Motoyuki Iemitsu
- Faculty of Sport and Health Science, Ritsumeikan University, Kusatsu, Japan
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16
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Chen HY, Chen A, Chen C. Investigation of the Impact of Infrared Sensors on Core Body Temperature Monitoring by Comparing Measurement Sites. SENSORS 2020; 20:s20102885. [PMID: 32438729 PMCID: PMC7284737 DOI: 10.3390/s20102885] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 05/13/2020] [Accepted: 05/19/2020] [Indexed: 01/24/2023]
Abstract
Many types of thermometers have been developed to measure body temperature. Infrared thermometers (IRT) are fast, convenient and ease to use. Two types of infrared thermometers are uses to measure body temperature: tympanic and forehead. With the spread of COVID-19 coronavirus, forehead temperature measurement is used widely to screen people for the illness. The performance of this type of device and the criteria for screening are worth studying. This study evaluated the performance of two types of tympanic infrared thermometers and an industrial infrared thermometer. The results showed that these infrared thermometers provide good precision. A fixed offset between tympanic and forehead temperature were found. The measurement values for wrist temperature show significant offsets with the tympanic temperature and cannot be used to screen fevers. The standard operating procedure (SOP) for the measurement of body temperature using an infrared thermometer was proposed. The suggestion threshold for the forehead temperature is 36 °C for screening of fever. The body temperature of a person who is possibly ill is then measured using a tympanic infrared thermometer for the purpose of a double check.
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Affiliation(s)
- Hsuan-Yu Chen
- Department of Materials Science and Engineering, University of California, San Diego, CA 92093, USA;
| | - Andrew Chen
- Africa Research Center, National Chung Hsing University, Taichung 40227, Taiwan;
| | - Chiachung Chen
- Department of Bio-industrial Mechatronics Engineering, National ChungHsing University, Taichung 40227, Taiwan
- Correspondence: ; Tel.: +886-4-22857562
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17
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Vesnovsky O, Zhu L, Grossman LW, Casamento JP, Chamani A, Wijekoon N, Timmie Topoleski LD. Identifying Critical Design Parameters for Improved Body Temperature Measurements: A Clinical Study Comparing Transient and Predicted Temperature Measurements. J Med Device 2018. [DOI: 10.1115/1.4041589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Readily available store brand, or “home,” thermometers are used countless times in the home and clinic as a first diagnostic measure of body temperature. Measurement inaccuracies may lead to unnecessary medical visits or medication (false positives), or, potentially worse, lack of intervention when a person is truly sick (false negatives). A critical first step in the design process is to determine the shortcomings of the existing designs. For this project, we evaluated the accuracy of three currently available store brand thermometers in a pediatric population. The accuracies of the thermometers were assessed by comparing their body temperature predictions to those measured by a specially designed and calibrated and fast-responding reference thermometer. The reference thermometer was placed at the measurement site simultaneously with the store brand thermometer and recorded the temperature at the measurement site continuously. More than 300 healthy or sick pediatric subjects were enrolled in this study. Temperatures were measured at both the oral and axillary (under the arm) sites. The store brand thermometer measurements characteristically deviated from the reference thermometer temperature after 120 s, and the deviations did not follow a consistent pattern. The Brand C thermometers had the greatest deviations of up to 3.7 °F (2.1 °C), while the Brand A thermometers had the lowest deviations; however, they still deviated by up to 1.9 °F (1.1 °C). The data showed that the tested store brand thermometers had lower accuracy than the ±0.2 °F (0.1 °C) indicated in their Instructions for Use. Our recorded reference (transient) data showed that there was a wide variation in the transient temperature profiles. The store brand thermometers tested stated in their documentation that they are able to predict a body temperature based on transient temperature values over the first 5–10 s of measurements, implying that they use an embedded algorithm to extrapolate to the steady-state temperature. Significant deviations from the maximum temperature after time t = 4.6t0.63 illustrated that the transient temperature profiles may not be represented by an exponential function with a single time constant, t0.63. The accuracy of those embedded algorithms was not confirmed by our study, since the predicted body temperatures do not capture the large variations observed over the initial 10 s of the measurements. A thermometer with an error of several degrees Fahrenheit may result in a false positive or negative diagnosis of fever in children. The transient temperature measurements from our clinical study represent unique and critical data for helping to design the next generation of readily available, highly accurate, home thermometers.
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Affiliation(s)
- Oleg Vesnovsky
- FDA Center for Devices & Radiological Health, Silver Spring, MD 20993 e-mail:
| | - Liang Zhu
- Department of Mechanical Engineering, University of Maryland, Baltimore County, Baltimore, MD 21250
| | | | - Jon P. Casamento
- FDA Center for Devices & Radiological Health, Silver Spring, MD 20993
| | - Alireza Chamani
- Department of Mechanical Engineering, University of Maryland, Baltimore County, Baltimore, MD 21250
| | - Nadeesri Wijekoon
- Department of Mathematics and Statistics, University of Maryland, Baltimore County, Baltimore, MD 21250
| | - L. D. Timmie Topoleski
- FDA Center for Devices & Radiological Health, Silver Spring, MD 20993; Department of Mechanical Engineering, University of Maryland, Baltimore County, Baltimore, MD 21250 e-mail:
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18
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Cabizosu A, Carboni N, Martinez-Almagro Andreo A, Vegara-Meseguer J, Marziliano N, Gea Carrasco G, Casu G. Theoretical basis for a new approach of studying Emery-Dreifuss muscular dystrophy by means of thermography. Med Hypotheses 2018; 118:103-106. [DOI: 10.1016/j.mehy.2018.06.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 06/21/2018] [Accepted: 06/27/2018] [Indexed: 10/28/2022]
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Abstract
AIM The aim of the study was define the normal values of tympanic and axillary body temperature in healthy children. METHODS This observational cross-sectional study was performed in healthy children aged 0 to 17 years who visited the ambulatory general pediatric of Istanbul Medical Faculty. RESULTS Of 1364 children, 651 (47.7%) were girls and 713 were boys, the mean (SD, range) age was 72.5 (53.6, 1-204) months. The mean (SD) axillary body temperature was 36.04°C (0.46°C; minimum, 35.0°C; maximum, 37.6°C). The 95th and 99th percentiles were 36.8°C and 37.0°C, respectively. The mean (SD) tympanic body temperature was 36.91°C (0.46°C; minimum, 35.15°C; maximum, 37.9°C). The 95th and 99th percentiles were 37.6°C and 37.8°C, respectively. There were statistically significant differences between sexes for only tympanic body temperatures. Both axillary and tympanic body temperatures were statistically higher in 0 to 2 months compared with other age groups. For this age group, the 99th percentile was 37.5°C for axillary and 37.85°C for tympanic temperature. CONCLUSIONS Axillary and tympanic body temperatures should be considered as fever when they are more than 37.0°C and 37.8°C, respectively. For 0 to 2 months, fever is 37.5°C and 37.85°C in axillary and tympanic temperatures, respectively.
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Harel L, Hashkes PJ, Lapidus S, Edwards KM, Padeh S, Gattorno M, Marshall GS. The First International Conference on Periodic Fever, Aphthous Stomatitis, Pharyngitis, Adenitis Syndrome. J Pediatr 2018; 193:265-274.e3. [PMID: 29246466 DOI: 10.1016/j.jpeds.2017.10.034] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 10/11/2017] [Accepted: 10/13/2017] [Indexed: 12/30/2022]
Affiliation(s)
- Liora Harel
- Rheumatology Unit, Schneider Children's Medical Center of Israel, Petach Tiva, Israel; Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel.
| | - Philip J Hashkes
- Pediatric Rheumatology Unit, Department of Pediatrics, Shaare Zedek Medical Center, Jerusalem, Israel; Hadassah Hebrew University School of Medicine, Jerusalem, Israel
| | - Sivia Lapidus
- Pediatric Rheumatology Division, Department of Pediatrics, Goryeb Children's Hospital, Morristown, NJ; Sidney Kimmel Medical College of Thomas Jefferson University, Philadelphia, PA
| | - Kathryn M Edwards
- Department of Pediatrics and Vaccine Research Program, Vanderbilt University School of Medicine, Nashville, TN; Monroe Carell Jr. Children's Hospital at Vanderbilt, Nashville, TN
| | - Shai Padeh
- Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel; Department of Pediatrics B, Edmond and Lily Safra Children's Hospital, Sheba Medical Center, Tel Hashomer, Italy
| | - Marco Gattorno
- Rheumatology Unit, Department of Pediatrics G, Gaslini Scientific Institute for Children, Genoa, Italy; University of Genoa, Genoa, Italy
| | - Gary S Marshall
- Divison of Pediatric Infectious Diseases, University of Louisville School of Medicine, Louisville, KY
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21
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Zhen C, Xia Z, Ya Jun Z, Long L, Jian S, Gui Ju C, Long L. Accuracy of infrared tympanic thermometry used in the diagnosis of Fever in children: a systematic review and meta-analysis. Clin Pediatr (Phila) 2015; 54:114-26. [PMID: 25104731 DOI: 10.1177/0009922814545492] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND Accurate determination and detection of fever is essential in the appropriate treatment of pediatric population. It is widely known that improper definitions of fever can cause grave and dangerous consequences in medical procedures. Infrared tympanic thermometry seems a relatively new and popular alternative for traditional measurement in the diagnosis of pediatric fever. However, its accuracy in the diagnosis of fever remains a major concern. DESIGN Systematic review and meta-analysis. DATA SOURCES Medline, Ovid, Elsevier, Google Scholar, and Cochrane library. STUDY SELECTION Cross-sectional, prospective design. DATA EXTRACTION Two investigators independently assessed selected studies and extracted data. Disagreements were resolved by discussion with other reviewers. RESULTS A total of 25 articles were included in our meta-analysis. The summary estimates revealed that the pooled sensitivity was 0.70 (95% confidence interval [CI] = 0.68-0.72), pooled specificity was 0.86 (95% CI = 0.85-0.88), and pooled diagnostic odds ratio was 47.3 (95% CI = 29.76-75.18), for the diagnosis of fever using infrared tympanic thermometry. Additionally, the area under the summary receiver operating characteristic curve was 0.94, and Q* value was 0.87. CONCLUSION A total of 25 articles that encompassing 31 studies were analyzed. Based on our meta-analysis, accuracy of infrared tympanic thermometry in diagnosing fever is high. We can cautiously make conclusion that infrared tympanic thermometry should be widely used as fever of thermometer.
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Affiliation(s)
- Chen Zhen
- Capital Institute of Pediatrics, Beijing, People's Republic of China Peking University, Beijing, People's Republic of China
| | - Zhang Xia
- Peking University, Beijing, People's Republic of China
| | - Zhou Ya Jun
- The Second Xiangya Hospital, Hunan, People's Republic of China
| | - Li Long
- Peking University, Beijing, People's Republic of China
| | - Shuai Jian
- Shantou University, Guangdong, People's Republic of China
| | - Cai Gui Ju
- Dalian Medical University Postgraduate School, Dalian, Liaoning Province, People's Republic of China
| | - Li Long
- Capital Institute of Pediatrics, Beijing, People's Republic of China
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Abstract
Determining the underlying cause of a fever can be a daunting task. Multiple reasons have been found for a patient to have a fever, but the use of an organized approach will assist clinicians in reaching a correct diagnosis. The first step in this process is a complete assessment, including a thorough physical assessment and an evaluation of the history of present illness as well as a detailed review of all the patient’s medications. Infection should always be a primary consideration for the cause of a fever. Evaluating each body system can match symptoms with a possible cause for fever, and proper testing and imaging can be pursued. Noninfectious causes of fever need to be included in the differential diagnostic process. This article provides an analytic approach to fever in adult patients in the acute and critical care environment.
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Affiliation(s)
- Nancy Munro
- Nancy Munro is Senior Acute Care Nurse Practitioner, National Institutes of Health, Critical Care Medicine Department/Pulmonary Consult Service, 10 Center Dr, Building 10-CRC, Room 3-3677, Bethesda, MD 20892
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Sund-Levander M, Grodzinsky E. Assessment of body temperature measurement options. ACTA ACUST UNITED AC 2013; 22:942, 944-50. [PMID: 24037397 DOI: 10.12968/bjon.2013.22.16.942] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Assessment of body temperature is important for decisions in nursing care, medical diagnosis, treatment and the need of laboratory tests. The definition of normal body temperature as 37°C was established in the middle of the 19th century. Since then the technical design and the accuracy of thermometers has been much improved. Knowledge of physical influence on the individual body temperature, such as thermoregulation and hormones, are still not taken into consideration in body temperature assessment. It is time for a change; the unadjusted mode should be used, without adjusting to another site and the same site of measurement should be used as far as possible. Peripheral sites, such as the axillary and the forehead site, are not recommended as an assessment of core body temperature in adults. Frail elderly individuals might have a low normal body temperature and therefore be at risk of being assessed as non-febrile. As the ear site is close to the hypothalamus and quickly responds to changes in the set point temperature, it is a preferable and recommendable site for measurement of body temperature.
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Affiliation(s)
- Märtha Sund-Levander
- Senior Lecturer at Faculty of Health Sciences, Linköping University and Futurum/Academy of Health and Care, Jönköping County Council Sweden
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Basak T, Aciksoz S, Tosun B, Akyuz A, Acikel C. Comparison of three different thermometers in evaluating the body temperature of healthy young adult individuals. Int J Nurs Pract 2013; 19:471-8. [PMID: 24093738 DOI: 10.1111/ijn.12097] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The aim of this study was to compare the measurement values obtained with a non-contact infrared thermometer, a tympanic thermometer and a chemical dot thermometer. The research population was composed of students studying in two departments of a university in Ankara. A total of 452 students who fit the inclusion criteria of the study and volunteered to participate were included in the sample. Body temperature measurements with different thermometers were performed by the same researcher at the same room temperature. Data were analyzed in a computerized environment by SPSS 15.0 statistical program pack and Bland-Altman graph. Mean age of healthy young adults participating in the study was 19.66 ± 0.94, and 55.1% of them were female. The agreement limits for non-contact infrared and chemical dot was between -1.30 and 0.32°C; for non-contact infrared and tympanic was between -1.26 and 0.13°C; and for chemical dot and tympanic -0.89 and 0.74°C. It was determined that, although the measurement values of the tympanic membrane and chemical dot thermometers conformed with each other, the conformity of the non-contact infrared thermometer was weak.
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Affiliation(s)
- Tulay Basak
- Gulhane Military Medical Academy, School of Nursing, Ankara, Turkey
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Barnason S, Williams J, Proehl J, Brim C, Crowley M, Leviner S, Lindauer C, Naccarato M, Storer A, Papa A. Emergency Nursing Resource: Non-Invasive Temperature Measurement in the Emergency Department. J Emerg Nurs 2012; 38:523-30. [DOI: 10.1016/j.jen.2012.05.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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27
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Homemade Thermometry Instruments in the Field. Wilderness Environ Med 2012; 23:70-4. [DOI: 10.1016/j.wem.2011.10.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2011] [Revised: 09/06/2011] [Accepted: 10/20/2011] [Indexed: 11/23/2022]
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Vahdatpour A, Amini N, Xu W, Sarrafzadeh M. Accelerometer-based on-body sensor localization for health and medical monitoring applications. PERVASIVE AND MOBILE COMPUTING 2011; 7:746-760. [PMID: 22347840 PMCID: PMC3279922 DOI: 10.1016/j.pmcj.2011.09.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
In this paper, we present a technique to recognize the position of sensors on the human body. Automatic on-body device localization ensures correctness and accuracy of measurements in health and medical monitoring systems. In addition, it provides opportunities to improve the performance and usability of ubiquitous devices. Our technique uses accelerometers to capture motion data to estimate the location of the device on the user's body, using mixed supervised and unsupervised time series analysis methods. We have evaluated our technique with extensive experiments on 25 subjects. On average, our technique achieves 89% accuracy in estimating the location of devices on the body. In order to study the feasibility of classification of left limbs from right limbs (e.g., left arm vs. right arm), we performed analysis, based of which no meaningful classification was observed. Personalized ultraviolet monitoring and wireless transmission power control comprise two immediate applications of our on-body device localization approach. Such applications, along with their corresponding feasibility studies, are discussed.
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29
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Rubia-Rubia J, Arias A, Sierra A, Aguirre-Jaime A. Measurement of body temperature in adult patients: comparative study of accuracy, reliability and validity of different devices. Int J Nurs Stud 2010; 48:872-80. [PMID: 21145551 DOI: 10.1016/j.ijnurstu.2010.11.003] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2010] [Revised: 11/02/2010] [Accepted: 11/14/2010] [Indexed: 11/26/2022]
Abstract
BACKGROUND AND AIMS We compared a range of alternative devices with core body temperature measured at the pulmonary artery to identify the most valid and reliable instrument for measuring temperature in routine conditions in health services. METHODS 201 patients from the intensive care unit of the Candelaria University Hospital, Canary Islands, admitted to hospital between April 2006 and July 2007. All patients (or their families) gave informed consent. Readings from gallium-in-glass, reactive strip and digital in axilla, infra-red ear and frontal thermometers were compared with the pulmonary artery core temperature simultaneously. External factors suspected of having an influence on the differences were explored. The cut-off point readings for each thermometer were fixed for the maximum negative predictive value in comparison with the core temperature. The validity, reliability, accuracy, external influence, the waste they generated, ease of use, speed, durability, security, comfort and cost of each thermometer was evaluated. An ad hoc overall valuation score was obtained from these parameters for each instrument. RESULTS For an error of ± 0.2°C and concordance with respect to fever, the gallium-in-glass thermometer gave the best results. The largest area under the receiver operating characteristic (ROC) curve is obtained by the digital axillar thermometer with probe (0.988 ± 0.007). The minimum difference between readings was given by the infrared ear thermometer, in comparison with the core temperature (-0.1 ± 0.3°C). Age, weight, level of conscience, male sex, environmental temperature and vaso-constrictor medication increases the difference in the readings and fever treatment reduces it, although this is not the same for all thermometers. The compact digital axillar thermometer and the digital thermometer with probe obtained the highest overall valuation score. CONCLUSION If we only evaluate the aspects of validity, reliability, accuracy and external influence, the best thermometer would be the gallium-in-glass after 12 min. The gallium-in-glass thermometer is less accurate after only 5 min in comparison with the reading taken after being placed for 12 min. If we add the evaluation of waste production, ease-of-use, speed, durability, security, patient comfort and costs, the thermometers that obtain the highest score are the compact digital and digital with probe in right axilla.
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Affiliation(s)
- J Rubia-Rubia
- Nuestra Señora de Candelaria Nursing University School, Carretera del Rosario, 145, 38010 Santa Cruz de Tenerife, Canary Islands, Spain
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30
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Ring EFJ, McEvoy H, Jung A, Zuber J, Machin G. New standards for devices used for the measurement of human body temperature. J Med Eng Technol 2010; 34:249-53. [PMID: 20397848 DOI: 10.3109/03091901003663836] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Significant changes in recording of human body temperature have been taking place worldwide in recent years. The clinical thermometer introduced in the mid-19th century by Wunderlich has been replaced by digital thermometers or radiometer devices for recording tympanic membrane temperature. More recently the use of infrared thermal imaging for fever screening has become more widespread following the SARS infection, and particularly during the pandemic H1N1 outbreak. Important new standards that have now reached international acceptance will affect clinical and fever screening applications. This paper draws attention to these new standard documents. They are designed to improve the standardization of both performance and practical use of these key techniques in clinical medicine, especially necessary in a pandemic influenza situation.
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Affiliation(s)
- E F J Ring
- Medical Imaging Research Unit, Faculty of Advanced Technology, University of Glamorgan, Pontypridd, CF37 1DL, UK.
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Using vital signs to assess children with acute infections: a survey of current practice. Br J Gen Pract 2008; 58:236-41. [PMID: 18494174 DOI: 10.3399/bjgp08x279689] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
BACKGROUND GPs are advised to measure vital signs in children presenting with acute infections. Current evidence supports the value of GPs' overall assessment in determining how unwell a child is, but the additional benefit of measuring vital signs is not known. AIM To describe the vital signs and clinical features that GPs use to assess children (aged <5 years) with acute infections. DESIGN OF STUDY Questionnaire survey. SETTING All 210 GP principals working within a 10 mile radius of Oxford, UK. METHOD Data were collected on reported frequency, methods, and utility of measuring vital signs. Description of clinical features was used to assess the overall severity of illness. RESULTS One hundred and sixty-two (77%) GPs responded. Half (54%, 95% confidence interval [CI] = 47 to 62) measured temperature at least weekly, compared to pulse (21%, 95% CI = 15 to 27), and respiratory rates (17%, 95% CI = 11 to 23). Almost half of GPs (77, 48%) never measured capillary refill time. Temperature was measured most frequently using electronic aural thermometers (131/152; 86%); auscultation or counting were used for pulse and respiratory rates. A minority used pulse oximeters to assess respiratory status (30/151, 20%). GPs' thresholds for tachypnoea were similar to published values, but there was no consensus on the threshold of tachycardia. Observations of behaviour and activity were considered more useful than vital signs in assessing severity of illness. CONCLUSION Vital signs are uncommonly measured in children in general practice and are considered less useful than observation in assessing the severity of illness. If measurement of vital signs is to become part of standard practice, the issues of inaccurate measurement and diagnostic value need to be addressed urgently.
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