scholarly journals Visualization of measurement of heart rate, oxygen saturation in blood and body temperature with a non-invasive method

2019 ◽  
Vol 674 ◽  
pp. 012032
Author(s):  
M T Tamam ◽  
A J Taufiq ◽  
A Kusumawati ◽  
D Setiawan
Keyword(s):  
Heart Rate ◽  
Body Temperature ◽  
Oxygen Saturation ◽  
Non Invasive ◽  
Invasive Method

Trends in Heart Rate and Heart Rate Variability during Pregnancy and Three Months Postpartum: Continuous Monitoring in a Free-Living Context (Preprint)

2021 ◽  
Author(s):  
Fatemeh Sarhaddi ◽  
Iman Azimi ◽  
Anna Axelin ◽  
Hannakaisa Niela-Vilen ◽  
Pasi Liljeberg ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Pregnant Women ◽  
Time Domain ◽  
Second Trimester ◽  
Third Trimester ◽  
Non Invasive ◽  
The Third ◽  
Invasive Method ◽  
Frequency Power

BACKGROUND Heart rate variability (HRV) is a non-invasive method reflecting autonomic nervous system (ANS) regulations. Altered HRV is associated with adverse mental or physical health complications. ANS also has a central role in physiological adaption during pregnancy causing normal changes in HRV. OBJECTIVE Assessing trends in heart rate (HR) and HRV parameters as a non-invasive method for remote maternal health monitoring during pregnancy and three months postpartum. METHODS Fifty-eight pregnant women were monitored using an Internet-of-Things (IoT)-based remote monitoring system during pregnancy and 3-months postpartum. Pregnant women were asked to continuously wear Gear sport smartwatch to monitor their HR and HRV. In addition, a cross-platform mobile application was utilized for collecting pregnancy-related information. The trends of HR and HRV parameters were extracted using reliable data. We also analyzed the trends of normalized HRV parameters based on HR to remove the effect of HR changes on HRV trends. Finally, we exploited hierarchical linear mixed models to analyze the trends of HR, HRV, and normalized HRV parameters. RESULTS HR increased significantly during the second trimester (P<.001) and decreased significantly during the third trimester (P<.01). Time-domain HRV parameters, average normal interbeat intervals (AVNN), standard deviation of normal interbeat intervals (SDNN), root mean square of the successive difference of normal interbeat intervals (RMSSD), normalized SDNN (nSDNN), and normalized RMSSD (nRMSSD) decreased significantly during the second trimester (P<.001) then increased significantly during the third trimester (P<.01). Some of the frequency domain parameters, low-frequency power (LF), high-frequency power (HF), and normalized HF (nHF) decreased significantly during the second trimester (P<.01), and HF increased significantly during the third trimester (P<.01). In the postpartum period, nRMSSD decreased (P<.05), and the LF to HF ratio (LF/HF) increased significantly (P<.01). CONCLUSIONS Our study showed that HR increased and HRV parameters decreased as the pregnancy proceeded, and the values returned to normal after the delivery. Moreover, our results show that HR started to decrease while time-domain HRV parameters and HF started to increase during the third trimester. Our results also demonstrate the possibility of continuous HRV monitoring in everyday life settings.

Abstract 281: Cerebral Regional Oxygen Saturation (rSO 2 ) is Useful as a Physiological Monitoring Tool During CPR in the Pre-Hospital Settings. An Analysis of 87 Cases in Osaka, Japan

Circulation ◽  
2019 ◽  
Vol 140 (Suppl_2) ◽  
Author(s):  
Shinji Shigematsu ◽  
Tomohiko Sakai ◽  
Tadahiko Shiozaki ◽  
Mitsuo Ohnishi ◽  
Ryosuke Takegawa ◽  
...  
Keyword(s):  
Oxygen Saturation ◽  
Primary Outcome ◽  
Hospital Setting ◽  
Primary Outcome Measure ◽  
Monitoring Tool ◽  
Non Invasive ◽  
Invasive Method ◽  
Neurologically Intact

Introduction: The simplified monitoring of regional cerebral oxygen saturation (rSO 2 ) is a non-invasive method of measuring cerebral perfusion, but continuous changes in the cerebral rSO 2 values among OHCA patients in the pre-hospital settings have not been sufficiently investigated. Our objective is to investigate the association between the change in rSO 2 pattern and patient outcome. Methods: We recently developed a very small portable rSO 2 monitoring system that can be used in the pre-hospital setting. The system can monitor cerebral rSO 2 immediately after attachment; monitoring is performed continuously during CPR. The system was used from June 2013 to May 2019 in Osaka City, Japan.The primary outcome measure was neurologically intact survival at 1 month. Results: We collected the continuous changes in the cerebral rSO 2 values of 87 OHCA patients during CPR by EMS personnel. The analyses of the continuous changes in the rSO 2 values of the 79 cases in which the rSO 2 value was measured before ROSC revealed two patterns of changes in the cerebral rSO 2 values. In type 1 (increasing rSO 2 type; n=38), the measured rSO 2 gradually increased during CPR or after ROSC. There were 3 patients of neurologically intact survival in type 1. In type 2 (non-increasing rSO 2 type; n=41), the measured rSO 2 did not increase during CPR. There was no patient of neurologically intact survival in type 2. We found an instructive phenomenon in the changes of the cerebral rSO 2 values. Measured rSO 2 dropped after confirmation of ROSC, which suggests that re-arrest had occurred during monitoring. Conclusion: We measured the continuous changes in cerebral rSO 2 values among 87 patients with OHCA in the pre-hospital setting and found 2 patterns and an instructive phenomenon in the continuous changes in rSO 2 values. Increasing type rSO 2 during CPR appeared to be associated with neurologically intact survival at 1 month.

Pulse oximetry

2007 ◽  
pp. 327-330
Keyword(s):  
Oxygen Saturation ◽  
Pulse Oximetry ◽  
Optical Density ◽  
Oxygen Delivery ◽  
Tissue Oxygen ◽  
Non Invasive ◽  
Tissue Oxygen Delivery ◽  
Invasive Method ◽  
Beer’S Law ◽  
Light Absorbance

Pulse oximetry 328 When employed correctly, pulse oximetry is a rapid non-invasive method of assessing one of the key components of tissue oxygen delivery: the oxygen saturation of haemoglobin (SaO2). • Based on the laws of light absorbance and optical density (Lambert's law and Beer's law), i.e. the principle that deoxygenated and oxygenated hemoglobin absorb light at different wavelengths....

scholarly journals Physiological Value of Heart Rate, Respiration and Rectal Temperature of Wild-Captive Dugong (Dugong dugon)–A Case Study in Lingayan Island

2019 ◽  
Vol 26 (4) ◽  
pp. 147
Author(s):  
Aryani Sismin Satyaningtijas ◽  
Agik Suprayogi ◽  
Ardiansyah Nurdin ◽  
Huda S. Darusman
Keyword(s):  
Heart Rate ◽  
Body Temperature ◽  
Therapeutic Process ◽  
Animal Health ◽  
Health Science ◽  
Physiological Adaptation ◽  
Natural Habitats ◽  
Non Invasive ◽  
In Captivity ◽  
Physiological Value

This study aims to obtain the physiological value of dugongs that live in natural habitats (in-situ) as protected wildlife, namely on the coast of Lingayan Island, Toli-Toli Regency. Wild dugongs caught on the beach were put into a net cage. After 14 days of living in a beach cage, measurements of heart rate, respiration, and body temperature were measured using non-invasive methods. This study showed that the value of heart rate, respiration, and body temperature were measured (80.00±17.32) beats/minutes, (17.33±6.80) inspiration/minute, and (32.75±0.07)°C. This physiological value is higher when compared to dugongs that live in captivity, this is likely due to the process of homeostasis through physiological adaptation mechanisms. The physiological value of the dugong is very important for the advancement of dugong animal health science and technology. Besides this finding can be a medical reference that is very useful for veterinarians in the diagnostic and therapeutic process.

scholarly journals Ultradian Rhythms in Heart Rate Variability and Distal Body Temperature Anticipate the Luteinizing Hormone Surge Onset

2020 ◽  
Author(s):  
Azure D. Grant ◽  
Mark Newman ◽  
Lance J. Kriegsfeld
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Menstrual Cycle ◽  
Body Temperature ◽  
Inflection Point ◽  
Ultradian Rhythms ◽  
Fertility Awareness ◽  
Lh Surge ◽  
Non Invasive ◽  
Sleep Timing

AbstractThe human menstrual cycle is characterized by predictable patterns of physiological change across timescales, yet non-invasive anticipation of key events is not yet possible at individual resolution. Although patterns of reproductive hormones across the menstrual cycle have been well characterized, monitoring these measures repeatedly to anticipate the preovulatory luteinizing hormone (LH) surge is not practical for fertility awareness. In the present study, we explored whether non-invasive and high frequency measures of distal body temperature (DBT), sleeping heart rate (HR), sleeping heart rate variability (HRV), and sleep timing could be used to anticipate the preovulatory LH surge in women. To test this possibility, we used signal processing to examine these measures across the menstrual cycle. Cycles were examined from both pre- (n=45 cycles) and perimenopausal (n=10 cycles) women using days of supra-surge threshold LH and dates of menstruation for all cycles. For a subset of cycles, urinary estradiol and progesterone metabolites were measured daily around the time of the LH surge. Wavelet analysis revealed a consistent inflection point of ultradian rhythm (2-5 h) power of DBT and HRV that enabled anticipation of the LH surge at least 2 days prior to its onset in 100% of individuals. In contrast, the power of ultradian rhythms in heart rate, circadian rhythms in body temperature, and metrics of sleep duration and sleep timing were not predictive of the LH surge. Together, the present findings reveal fluctuations in distal body temperature and heart rate variability that consistently anticipate the LH surge and may aid in fertility awareness.Key PointsUltradian (2-5 h) rhythm power of distal body temperature and heart rate variability (RMSSD) exhibits a stereotyped inflection point and peak in the days leading up to the LH surge in premenopausal women.Circadian rhythms of distal body temperature and single time-point/day metrics do not permit anticipation of the LH surge.Measurement of continuous metabolic and autonomic outputs, enabling assessment of ultradian rhythms, may be of value to the fertility awareness method.

Auricall®. A new device for a non-invasive, wireless, continuous monitoring of oxygen saturation and heart rate in patients with heart failure

2008 ◽  
Vol 129 (1) ◽  
pp. 141-143 ◽  
Author(s):  
Isabella Sudano ◽  
Andreas J. Flammer ◽  
Frank Hermann ◽  
Thomas Syburra ◽  
Priska Kaiser ◽  
...  
Keyword(s):  
Heart Failure ◽  
Heart Rate ◽  
Oxygen Saturation ◽  
Continuous Monitoring ◽  
New Device ◽  
Non Invasive ◽  
Patients With Heart Failure

scholarly journals Pulse Rate and Oxygen Level Measurement Using Arduino

2021 ◽  
Vol 9 (VII) ◽  
pp. 1518-1524
Author(s):  
Shiv Prakash Singh
Keyword(s):  
Heart Rate ◽  
Oxygen Saturation ◽  
The Body ◽  
Intensity Change ◽  
Blood Oxygen Saturation ◽  
Non Invasive ◽  
Level Measurement ◽  
Arterial Blood ◽  
Use Of Technology ◽  
Infrared Wavelengths

Use of technology in healthcare is growing importance as a result of the tendency to acquire chronic disease like heart attack and high blood pressure. Heart rate and blood oxygen saturation is a couple of such biometrics that is monitored in this project to provide information regarding the health of the body. By measuring the intensity change of light transmitted through tissue due to arterial blood, heart rate is measured. Furthermore, oxygenated blood has different light absorption characteristics than deoxygenated blood under red and infrared wavelengths. Comparing the absorptions produce an estimate of the oxygen saturation of blood. The purpose is to examine how heart rate and the oxygen saturation of subject is measured from finger and then processed and displayed. The design, is small in size, easy to use, allows a non- invasive, real time method to provide information regarding health. This enables an efficient and economical means for managing the health care. This document is intended to be used by engineers, medical equipment developers, anyone related to medical practice and interested in understanding the operation of pulse oximeter and heart rate monitoring system.

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