scholarly journals Identification of thresholds for accuracy comparisons of heart rate and respiratory rate in neonates

2021 ◽  
Vol 5 ◽  
pp. 93
Author(s):  
Jesse Coleman ◽  
Amy Sarah Ginsburg ◽  
William M. Macharia ◽  
Roseline Ochieng ◽  
Guohai Zhou ◽  
...  
Keyword(s):  
Heart Rate ◽  
Respiratory Rate ◽  
A Priori ◽  
Detection Algorithm ◽  
University Hospital ◽  
Accuracy Comparison ◽  
Study Team ◽  
Neonatal Care Unit ◽  
Averaging Filter ◽  
Clinical Measurements

Background: Heart rate (HR) and respiratory rate (RR) can be challenging to measure accurately and reliably in neonates. The introduction of innovative, non-invasive measurement technologies suitable for resource-constrained settings is limited by the lack of appropriate clinical thresholds for accuracy comparison studies. Methods: We collected measurements of photoplethysmography-recorded HR and capnography-recorded exhaled carbon dioxide across multiple 60-second epochs (observations) in enrolled neonates admitted to the neonatal care unit at Aga Khan University Hospital in Nairobi, Kenya. Trained study nurses manually recorded HR, and the study team manually counted individual breaths from capnograms. For comparison, HR and RR also were measured using an automated signal detection algorithm. Clinical measurements were analyzed for repeatability. Results: A total of 297 epochs across 35 neonates were recorded. Manual HR showed a bias of -2.4 (-1.8%) and a spread between the 95% limits of agreement (LOA) of 40.3 (29.6%) compared to the algorithm-derived median HR. Manual RR showed a bias of -3.2 (-6.6%) and a spread between the 95% LOA of 17.9 (37.3%) compared to the algorithm-derived median RR, and a bias of -0.5 (1.1%) and a spread between the 95% LOA of 4.4 (9.1%) compared to the algorithm-derived RR count. Manual HR and RR showed repeatability of 0.6 (interquartile range (IQR) 0.5-0.7), and 0.7 (IQR 0.5-0.8), respectively. Conclusions: Appropriate clinical thresholds should be selected a priori when performing accuracy comparisons for HR and RR. Automated measurement technologies typically use a smoothing or averaging filter, which significantly impacts accuracy. A wider spread between the LOA, as much as 30%, should be considered to account for the observed physiological nuances and within- and between-neonate variability and different averaging methods. Wider adoption of thresholds by data standards organizations and technology developers and manufacturers will increase the robustness of clinical comparison studies.

scholarly journals Identification of thresholds for accuracy comparisons of heart rate and respiratory rate in neonates

2021 ◽  
Vol 5 ◽  
pp. 93
Author(s):  
Jesse Coleman ◽  
Amy Sarah Ginsburg ◽  
William M. Macharia ◽  
Roseline Ochieng ◽  
Guohai Zhou ◽  
...  
Keyword(s):  
Heart Rate ◽  
Respiratory Rate ◽  
A Priori ◽  
Detection Algorithm ◽  
University Hospital ◽  
Non Invasive ◽  
Accuracy Comparison ◽  
Study Team ◽  
Neonatal Care Unit ◽  
Clinical Measurements

Background: Heart rate (HR) and respiratory rate (RR) can be challenging to measure accurately and reliably in neonates. The introduction of innovative, non-invasive measurement technologies suitable for resource-constrained settings is limited by the lack of appropriate clinical thresholds for accuracy comparison studies. Methods: We collected measurements of photoplethysmography-recorded HR and capnography-recorded exhaled carbon dioxide across multiple 60-second epochs (observations) in enrolled neonates admitted to the neonatal care unit at Aga Khan University Hospital in Nairobi, Kenya. Trained study nurses manually recorded HR, and the study team manually counted individual breaths from capnograms. For comparison, HR and RR also were measured using an automated signal detection algorithm. Clinical measurements were analyzed for repeatability. Results: A total of 297 epochs across 35 neonates were recorded. Manual HR showed a bias of -2.4 (-1.8%) and a spread between the 95% limits of agreement (LOA) of 40.3 (29.6%) compared to the algorithm-derived median HR. Manual RR showed a bias of -3.2 (-6.6%) and a spread between the 95% LOA of 17.9 (37.3%) compared to the algorithm-derived median RR, and a bias of -0.5 (1.1%) and a spread between the 95% LOA of 4.4 (9.1%) compared to the algorithm-derived RR count. Manual HR and RR showed repeatability of 0.6 (interquartile range (IQR) 0.5-0.7), and 0.7 (IQR 0.5-0.8), respectively. Conclusions: Appropriate clinical thresholds should be selected a priori when performing accuracy comparisons for HR and RR. Automated measurement technologies typically use median values rather than counts, which significantly impacts accuracy. A wider spread between the LOA, as much as 30%, should be considered to account for the observed physiological nuances and within- and between-neonate variability and different averaging methods. Wider adoption of thresholds by data standards organizations and technology developers and manufacturers will increase the robustness of clinical comparison studies.

scholarly journals Validation Study of a Contactless Monitoring Device for Vital Signs During Sleep and Sleep Architecture in Adults With Sleep-Disordered Breathing

2021 ◽  
Vol 12 (2) ◽  
pp. 118-124
Author(s):  
Young Jeong Lee ◽  
Hyun Tag Kang ◽  
Ji Ho Choi ◽  
Ji Eun Moon ◽  
Young Jun Lee ◽  
...  
Keyword(s):  
Heart Rate ◽  
Body Temperature ◽  
Respiratory Rate ◽  
Sleep Disordered Breathing ◽  
Intraclass Correlation ◽  
Vital Signs ◽  
Sleep Architecture ◽  
University Hospital ◽  
Monitoring Device ◽  
Disordered Breathing

Background and Objective Few clinical studies have investigated the accuracy of non-contact monitoring devices for vital signs during sleep and sleep architecture in adults with sleep-disordered breathing (SDB). The purpose of this study was to assess the accuracy of a contactless monitoring device for 1) heart rate, respiratory rate, and body temperature during sleep and 2) sleep architecture in adults with SDB.Methods Thirty-five consecutive adults, who visited a tertiary university hospital due to suspected SDB, underwent a complete physical examination and standard (level 1) polysomnography plus body temperature measurement with a contactless monitoring device (HoneyCube System).Results A total of 30 subjects (mean age = 46.43 ± 12.9 years; male: female = 22: 8) were finally included, and five subjects were excluded due to inadequate data in this study. The intraclass correlation coefficient values of heart rate, respiratory rate, and body temperature measured using the contactless monitoring device were 0.91 (95% confidence interval [CI]: 0.892, 0.928), 0.937 (95% CI: 0.919, 0.954), and 0.918 (95% CI: 0.895, 0.941), respectively. The mean kappa value for sleep architecture was 0.562 (95% CI: 0.529, 0.596).Conclusions The contactless monitoring device showed good (almost perfect) agreement in terms of heart rate, respiratory rate, and body temperature and moderate agreement in sleep architecture with contact measurements. These results suggest that the HoneyCube System is a good candidate device for sleep monitoring at home and in multiple accommodations.

scholarly journals A Pilot Study of the Reliability and Agreement of Heart Rate, Respiratory Rate and Short-Term Heart Rate Variability in Elite Modern Pentathlon Athletes

Diagnostics ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 833 ◽  
Author(s):  
Bartosz Hoffmann ◽  
Andrew A. Flatt ◽  
Luiz Eduardo Virgilio Silva ◽  
Marcel Młyńczak ◽  
Rafał Baranowski ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Respiratory Rate ◽  
A Priori ◽  
Correlation Coefficients ◽  
Short Term ◽  
Intra Class Correlation ◽  
Inverse Results ◽  
Electrocardiographic Recordings ◽  
Absolute Reliability

Research on reliability of heart rate variability (HRV) parameters in athletes has received increasing attention. The aims of this study were to examine the inter-day reliability of short-term (5 min) and ultra-short-term (1 min) heart rate (HR), respiratory rate (RespRate) and HRV parameters, agreement between short-term and ultra-short-term parameters, and association between differences in HR, RespRate and HRV parameters in elite modern pentathletes. Electrocardiographic recordings were performed in stable measurement conditions with a week interval between tests. Relative reliability was evaluated by intra-class correlation coefficients, absolute reliability was evaluated by within-subject coefficient of variation, and agreement was evaluated using Bland–Altman (BA) plot with limits of agreement and defined a priori maximum acceptable difference. Short-term HR, RespRate, log transformed (ln) root mean square of successive normal-to-normal interval differences (lnRMSSD), ln high frequency (lnHF) and SD2/SD1 HRV indices and ultra-short-term HR, RespRate and lnRMSSD presented acceptable, satisfactory inter-day reliability. Although there were no significant differences between short-term and ultra-short-term HR, RespRate and lnRMSSD, no parameter showed acceptable differences with BA plots. Differences in time-domain and non-linear HRV parameters were more correlated with differences in HR than with differences in RespRate. Inverse results were observed for frequency-domain parameters. Short-term HR, RespRate, lnRMSSD, lnHF, and SD2/SD1 and ultra-short-term HR, RespRate and lnRMSSD could be used as reliable parameters in endurance athletes. However, practitioners should interpret changes in HRV parameters with regard to concomitant differences in HR and RespRate and caution should be taken before considering 5 min and 1 min parameters as interchangeable.

The influence of osteopathic correction on the rate of various rhythms of the body

2019 ◽  
pp. 64-71 ◽  
Author(s):  
A. E. Chernikova ◽  
Yu. P. Potekhina
Keyword(s):  
Heart Rate ◽  
Respiratory Rate ◽  
Age Groups ◽  
Biomechanical Properties ◽  
Dispersion Analysis ◽  
The Body ◽  
Body Tissues ◽  
Age Related ◽  
Significant Difference ◽  
Before And After

Introduction. An osteopathic examination determines the rate, the amplitude and the strength of the main rhythms (cardiac, respiratory and cranial). However, there are relatively few studies in the available literature dedicated to the influence of osteopathic correction (OC) on the characteristics of these rhythms.Goal of research — to study the influence of OC on the rate characteristics of various rhythms of the human body.Materials and methods. 88 adult osteopathic patients aged from 18 to 81 years were examined, among them 30 men and 58 women. All patients received general osteopathic examination. The rate of the cranial rhythm (RCR), respiratory rate (RR) heart rate (HR), the mobility of the nervous processes (MNP) and the connective tissue mobility (CTM) were assessed before and after the OC session.Results. Since age varied greatly in the examined group, a correlation analysis of age-related changes of the assessed rhythms was carried out. Only the CTM correlated with age (r=–0,28; p<0,05) in a statistically significant way. The rank dispersion analysis of Kruskal–Wallis also showed statistically significant difference in this indicator in different age groups (p=0,043). With the increase of years, the CTM decreases gradually. After the OC, the CTM, increased in a statistically significant way (p<0,0001). The RCR varied from 5 to 12 cycles/min in the examined group, which corresponded to the norm. After the OC, the RCR has increased in a statistically significant way (p<0,0001), the MNP has also increased (p<0,0001). The initial heart rate in the subjects varied from 56 to 94 beats/min, and in 15 % it exceeded the norm. After the OC the heart rate corresponded to the norm in all patients. The heart rate and the respiratory rate significantly decreased after the OC (р<0,0001).Conclusion. The described biorhythm changes after the OC session may be indicative of the improvement of the nervous regulation, of the normalization of the autonomic balance, of the improvement of the biomechanical properties of body tissues and of the increase of their mobility. The assessed parameters can be measured quickly without any additional equipment and can be used in order to study the results of the OC.

PENGARUH TINDAKAN MOBILISASI DINI TERHADAP DENYUT JANTUNG DAN FREKUENSI PERNAPASAN PADA PASIEN KRITIS DI ICU RSUD SLEMAN YOGYAKARTA

2019 ◽  
Vol 5 (3) ◽  
pp. 213-223
Author(s):  
Muhamat Nofiyanto ◽  
Tetra Saktika Adhinugraha
Keyword(s):  
Heart Rate ◽  
Respiratory Rate ◽  
Early Mobilization ◽  
Critical Conditions ◽  
P Value ◽  
Cardiorespiratory Function ◽  
Arterial Blood ◽  
Post Test ◽  
Critical Patients ◽  
Security Standards

Background: Patients with critical conditions in the ICU depend on a variety of tools to support their lifes. Patients’ conditions and and their unstable hemodynamic are challenges for nurses to perform mobilization. Less mobilization in critical patients can cause a variety of physical problems, one of them is cardiorespiratory function disorder. Objective: to investigate differences in heart rate (HR) and respiratory rate (RR) before, during, and immediately after early mobilization. Methods: This study employed quasi experiment with one group pre and post test design. Twenty four respondents were selected based on the criteria HR <110 / min at rest, Mean Arterial Blood Pressure between 60 to 110 mmHg, and the fraction of inspired oxygen <0.6. Early mobilization was performed to the respondents, and followed by assessments on the changes of respiratory rate and heart rate before, during, and immediately after the mobilization. Analysis of differences in this study used ANNOVA. Results: Before the early mobilization, mean RR was 22.54 and mean HR was 78.58. Immediately after the mobilization,  mean RR was 23.21 and mean HR was 80.75. There was no differences in the value of RR and HR, before and immediately after the early mobilization with the p-value of 0.540 and 0.314, respectively. Conclusions: Early mobilization of critical patients is relatively safe. Nurses are expected to perform early mobilization for critical patients. However, it should be with regard to security standards and rigorous assessment of the patient's conditions. Keywords: Early mobilization, critical patients, ICU

STUDYING SOME CLINICAL AND PARACLINICAL CHARACTERISTICS OF POSMATURE BABIES CARED IN NICU AT HUE UNIVERSITY HOSPITAL

2012 ◽  
pp. 74-84
Author(s):  
Thi Kieu Nhi Nguyen
Keyword(s):  
Respiratory Rate ◽  
Clinical Signs ◽  
Clinical Manifestations ◽  
University Hospital ◽  
Maternal Characteristics ◽  
Exact Test ◽  
Menstrual Cycles ◽  
Term Newborns ◽  
Student’S T ◽  
The Individual

Objectives: 1. Estimating the ratios of clinical and paraclinical signs of post-term newborns hospitalized at Pediatric Department of Hue University Hospital. 2. Identifying the relation between clinical signs and paraclinical signs. Materials and Method: 72 post- term babies < 7 days of life hospitalized at NICU from 2010/5 to 2011/4. Classification of post - term newborn was based on WHO 2003: gestational age ≥ 42 weeks with clinical manifestations: desquamation on press with fingers or natural desquamation, withered or meconial umbilicus, meconial long finger nails (*) or geatational age still < 42 weeks with theses clinical manifestations (*). Data were recorded on a clinical record form. Per-protocol analysis of clinical outcomes was performed by using Medcalc 11.5 and Excell 2007. Analyses used the χ2 test or Fisher's exact test for categorical data; Student's t test was used for continuous data and the Mann-Whitney U test for nonparametric data. Data were presented as means or proportions with 95% CIs. Results: Clinical characteristics: Tachypnea and grasp were main reasons of hospitalisation (48.61%). Poor feeding, vomitting (16.67%). Asphyxia (8.34%). Jawndice (6.94%). Hypothermia < 36.50C (13.89%), fever (13.89%). Tachypnea (59.72%). Bradycardia (1.39%). Poor feeding (11.11%). Hypertonia (9.72%). Paraclinical characteristics: Erythrocytes < 4.5.1012/l (51.39%), Leucocytes 5 – 25.103/mm3 (81.94%), Thrombocytes 100- 400.103/mm3 (94.44%). Hemoglobinemia < 10mg/l (67.61%). Maternal characteristics: Menstrual cycles regular (75%). Primiparity (75%). Amniotic volume average (70.42%), little (29.58%). Aminiotic liquid clair (62.5%), aminiotic liquid yellow (4.17%), aminiotic meconial liquid (33.33%). Maternal manifestation of one of many risk factors consist of genital infection; urinary infection; fever before, during, after 3 days of birth; prolonged delivery; medical diseases influence the foetus (75%). The relation between clinical signs and paraclinical signs: There was significantly statistical difference: between gestationnal age based on obstetrical criteria and amniotic volume on ultrasound (p < 0.05); between birth weight and glucosemia p < 0.02). There was conversional correlation of average level between erythroctes number and respiratory rate (r = - 0.5158; p < 0,0001), concordance correlation of weak level betwwen leucocytes number and respiratory rate r = 0.3045; p = 0.0093). Conclusion: It should made diagnosis of postterm baby based on degree of desquamation. The mother who has menstrual cycles regular is still delivered of a postterm baby. A postterm baby has the individual clinical and paraclinical signs.

scholarly journals Energy Supplementation during the Last Third of Gestation Improves Mother–Young Bonding in Goats

Animals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 287
Author(s):  
Juan M. Vázquez-García ◽  
Gregorio Álvarez-Fuentes ◽  
Héctor O. Orozco-Gregorio ◽  
Juan C. García-López ◽  
Milagros González-Hernández ◽  
...  
Keyword(s):  
Heart Rate ◽  
Birth Weight ◽  
Respiratory Rate ◽  
Rectal Temperature ◽  
First Feeding ◽  
Labor Duration ◽  
Daily Energy ◽  
Energy Supplementation ◽  
Birth Body Weight ◽  
Birth Type

We tested whether maternal energy supplementation during the last third of gestation improves birth weight, neonatal wellbeing, and mother–young bonding. Thirty-six pregnant French Alpine goats were randomly allocated among three nutritional treatments for the last third of pregnancy: (i) Control, fed alfalfa (T-0; n = 12); (ii) alfalfa + 150 g/head daily energy concentrate (T-150; n = 12); (iii) alfalfa + 300 g/head daily energy concentrate (T-300; n = 12). At birth, we collected progeny data on birth weight, birth type, sex, rectal temperature, heart rate, respiratory rate, time to standing, time to udder connection, and time to first feeding. For the dams, we collected data on the duration of labor, time to clean the progeny, and time to allow first suckling. At birth, body weight, rectal temperature, heart rate, and the respiratory rate did not differ among treatments (p > 0.05). In the dams, labor duration was not affected by the treatments (p > 0.05). The T-150 dams were faster to clean the newborn and allow first suckling (p < 0.05). The T-150 progeny were faster to stand and the T-300 progeny were faster to connect to the udder (p < 0.05). We conclude that energy supplementation of the dam during the last third of gestation does not affect the birth weight of the progeny, but enhances the mother–young bonding.

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