scholarly journals Heart Rate and Oxygen Saturation Monitoring With a New Wearable Wireless Device in the Intensive Care Unit: Pilot Comparison Trial

10.2196/18158 ◽  
2020 ◽  
Vol 5 (1) ◽  
pp. e18158
Author(s):  
Srinivasan Murali ◽  
Francisco Rincon ◽  
Tiziano Cassina ◽  
Stephane Cook ◽  
Jean-Jacques Goy

Background Continuous cardiac monitoring with wireless sensors is an attractive option for early detection of arrhythmia and conduction disturbances and the prevention of adverse events leading to patient deterioration. We present a new sensor design (SmartCardia), a wearable wireless biosensor patch, for continuous cardiac and oxygen saturation (SpO2) monitoring. Objective This study aimed to test the clinical value of a new wireless sensor device (SmartCardia) and its usefulness in monitoring the heart rate (HR) and SpO2 of patients. Methods We performed an observational study and monitored the HR and SpO2 of patients admitted to the intensive care unit (ICU). We compared the device under test (SmartCardia) with the ICU-grade monitoring system (Dräger-Healthcare). We defined optimal correlation between the gold standard and the wireless system as <10% difference for HR and <4% difference for SpO2. Data loss and discrepancy between the two systems were critically analyzed. Results A total of 58 ICU patients (42 men and 16 women), with a mean age of 71 years (SD 11), were included in this study. A total of 13.49 (SD 5.53) hours per patient were recorded. This represents a total recorded period of 782.3 hours. The mean difference between the HR detected by the SmartCardia patch and the ICU monitor was 5.87 (SD 16.01) beats per minute (bias=–5.66, SD 16.09). For SpO2, the average difference was 3.54% (SD 3.86; bias=2.9, SD 4.36) for interpretable values. SmartCardia’s patch measures SpO2 only under low-to-no activity conditions and otherwise does not report a value. Data loss and noninterpretable values of SpO2 represented 26% (SD 24) of total measurements. Conclusions The SmartCardia device demonstrated clinically acceptable accuracy for HR and SpO2 monitoring in ICU patients.

2020 ◽  
Author(s):  
Srinivasan Murali ◽  
Francisco Rincon ◽  
Tiziano Cassina ◽  
Stephane Cook ◽  
Jean-Jacques Goy

BACKGROUND Continuous cardiac monitoring with wireless sensors is an attractive option for early detection of arrhythmia and conduction disturbances and the prevention of adverse events leading to patient deterioration. We present a new sensor design (SmartCardia), a wearable wireless biosensor patch, for continuous cardiac and oxygen saturation (SpO<sub>2</sub>) monitoring. OBJECTIVE This study aimed to test the clinical value of a new wireless sensor device (SmartCardia) and its usefulness in monitoring the heart rate (HR) and SpO<sub>2</sub> of patients. METHODS We performed an observational study and monitored the HR and SpO<sub>2</sub> of patients admitted to the intensive care unit (ICU). We compared the device under test (SmartCardia) with the ICU-grade monitoring system (Dräger-Healthcare). We defined optimal correlation between the gold standard and the wireless system as &lt;10% difference for HR and &lt;4% difference for SpO<sub>2</sub>. Data loss and discrepancy between the two systems were critically analyzed. RESULTS A total of 58 ICU patients (42 men and 16 women), with a mean age of 71 years (SD 11), were included in this study. A total of 13.49 (SD 5.53) hours per patient were recorded. This represents a total recorded period of 782.3 hours. The mean difference between the HR detected by the SmartCardia patch and the ICU monitor was 5.87 (SD 16.01) beats per minute (bias=–5.66, SD 16.09). For SpO<sub>2</sub>, the average difference was 3.54% (SD 3.86; bias=2.9, SD 4.36) for interpretable values. SmartCardia’s patch measures SpO<sub>2</sub> only under low-to-no activity conditions and otherwise does not report a value. Data loss and noninterpretable values of SpO<sub>2</sub> represented 26% (SD 24) of total measurements. CONCLUSIONS The SmartCardia device demonstrated clinically acceptable accuracy for HR and SpO<sub>2</sub> monitoring in ICU patients.


2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Ann Marie Chiasson ◽  
Ann Linda Baldwin ◽  
Carrol Mclaughlin ◽  
Paula Cook ◽  
Gulshan Sethi

This study was performed to investigate the effect of live, spontaneous harp music on individual patients in an intensive care unit (ICU), either pre- or postoperatively. The purpose was to determine whether this intervention would serve as a relaxation or healing modality, as evidenced by the effect on patient’s pain, heart rate, respiratory rate, blood pressure, oxygen saturation, and heart rate variability. Each consenting patient was randomly assigned to receive either a live 10-minute concert of spontaneous music played by an expert harpist or a 10-minute rest period. Spontaneous harp music significantly decreased patient perception of pain by 27% but did not significantly affect heart rate, respiratory rate, oxygen saturation, blood pressure, or heart rate variability. Trends emerged, although being not statistically significant, that systolic blood pressure increased while heart rate variability decreased. These findings may invoke patient engagement, as opposed to relaxation, as the underlying mechanism of the decrease in the patients’ pain and of the healing benefit that arises from the relationship between healer, healing modality, and patient.


2015 ◽  
Vol 123 (4) ◽  
pp. 830-837 ◽  
Author(s):  
Romain Persichini ◽  
Frédérick Gay ◽  
Matthieu Schmidt ◽  
Julien Mayaux ◽  
Alexandre Demoule ◽  
...  

Abstract Background: Dyspnea, like pain, can cause major suffering in intensive care unit (ICU) patients. Its evaluation relies on self-report; hence, the risk of being overlooked when verbal communication is impaired. Observation scales incorporating respiratory and behavioral signs (respiratory distress observation scales [RDOS]) can provide surrogates of dyspnea self-report in similar clinical contexts (palliative care). Methods: The authors prospectively studied (single center, 16-bed ICU, large university hospital) 220 communicating ICU patients (derivation cohort, 120 patients; separate validation cohort, 100 patients). Dyspnea was assessed by dyspnea visual analog scale (D-VAS) and RDOS calculated from its eight components (heart rate, respiratory rate, nonpurposeful movements, neck muscle use during inspiration, abdominal paradox, end-expiratory grunting, nasal flaring, and facial expression of fear). An iterative principal component analysis and partial least square regression process aimed at identifying an optimized D-VAS correlate (intensive care RDOS [IC-RDOS]). Results: In the derivation cohort, RDOS significantly correlated with D-VAS (r = 0.43; 95% CI, 0.29 to 0.58). A five-item IC-RDOS (heart rate, neck muscle use during inspiration, abdominal paradox, facial expression of fear, and supplemental oxygen) significantly better correlated with D-VAS (r = 0.61; 95% CI, 0.50 to 0.72). The median area under the receiver operating curve of IC-RDOS to predict D-VAS was 0.83 (interquartile range, 0.81 to 0.84). An IC-RDOS of 2.4 predicted D-VAS of 4 or greater with equal sensitivity and specificity (72%); an IC-RDOS of 6.3 predicted D-VAS of 4 or greater with 100% specificity. Similar results were found in the validation cohort. Conclusions: Combinations of observable signs correlate with dyspnea in communicating ICU patients. Future studies in noncommunicating patients will be needed to determine the responsiveness to therapeutic interventions and clinical usefulness.


2018 ◽  
Vol 46 (3) ◽  
pp. 297-303 ◽  
Author(s):  
S. J. Ebmeier ◽  
M. Barker ◽  
M. Bacon ◽  
R. C. Beasley ◽  
R. Bellomo ◽  
...  

The influence of variables that might affect the accuracy of pulse oximetry (SpO2) recordings in critically ill patients is not well established. We sought to describe the relationship between paired SpO2/SaO2 (oxygen saturation via arterial blood gas analysis) in adult intensive care unit (ICU) patients and to describe the diagnostic performance of SpO2 in detecting low SaO2 and PaO2. A paired SpO2/SaO2 measurement was obtained from 404 adults in ICU. Measurements were used to calculate bias, precision, and limits of agreement. Associations between bias and variables including vasopressor and inotrope use, capillary refill time, hand temperature, pulse pressure, body temperature, oximeter model, and skin colour were estimated. There was no overall statistically significant bias in paired SpO2/SaO2 measurements; observed limits of agreement were +/-4.4%. However, body temperature, oximeter model, and skin colour, were statistically significantly associated with the degree of bias. SpO2 <89% had a sensitivity of 3/7 (42.9%; 95% confidence intervals, CI, 9.9% to 81.6%) and a specificity of 344/384 (89.6%; 95% CI 86.1% to 92.5%) for detecting SaO2 <89%. The absence of statistically significant bias in paired SpO2/SaO2 in adult ICU patients provides support for the use of pulse oximetry to titrate oxygen therapy. However, SpO2 recordings alone should be used cautiously when SaO2 recordings of 4.4% higher or lower than the observed SpO2 would be of concern. A range of variables relevant to the critically ill had little or no effect on bias.


2019 ◽  
Vol 10 (4) ◽  
pp. 2800-2804 ◽  
Author(s):  
Alice Jeba J ◽  
Senthil Kumar S ◽  
Shivaprakash sosale

Preterm infants are babies who are delivered before the completion of 37 weeks gestation period. They are born with immature functioning of the brain. In  Neonatal Intensive Care Unit (NICU), these infants receives many environmental stimuli, and their comfort will be disturbed. These various sensory stimulus received in NICU influence the functional and neurodevelopmental outcome of these infants and also their quality of life. So this study was intended to evaluate the axillary temperature, heart rate, respiratory rate and oxygen saturation level of these infants prior to nesting and after nesting at the 60th minute. Forty preterm infants who fulfilled the criteria of selection were included in the study by simple random sampling and segregated into case and control groups by blocked randomization. Data was collected and recorded. The temperature was recorded by a digital thermometer, respiratory rate was counted by the number of times the infants' chest rises, heart rate and oxygen saturation readings from the pulse oximeter. The result of the study showed that there was statistically significant effect of nesting at 60th minute, temperature (t=5.03966,p<0.05), respiratory rate(t= -2.13,p<0.05) and heart rate (t=-2.59766,p<0.05). But the effect was not significant on oxygen saturation level (t=1.2,p=0.238).  Hence this study result supports the use of nesting in NICU.


2021 ◽  
pp. 805-811
Author(s):  
Nyayu Nina Putri C ◽  
Bhakti Permana ◽  
Linlin Lindayani

Several studies have suggested the effectiveness of foot massage on reducing stress and blood pressure. However, few studies examine the effect of foot massage on hemodynamic status especially among patients admitted to intensive care units, when the hemodynamics status was unstable and became a significant concern. This study aimed to examine the effects of on hemodynamic status especially among patients admitted to intensive care unit. This study was quasi-experimental with pre- and post-test in one group. Subjects were recruited from the intensive care unit of one general public hospital located in Garut, West Java, Indonesia. Patients who used a partial mode control of ventilator, mean arterial pressure > 70 mmHg, heart rate > 60 times per minute, respiration rate > 12 times per minutes, and oxygen saturation ≤ 100% were considered as eligible criteria in this study. The exclusion criteria were patients who have fractures, trauma, or leg injuries, in an anxious state, or diagnosed with deep vein thrombosis symptoms. A paired t-test was used to examine the effect of the intervention of mean arterial pressure, heart rate, respiration rate, and oxygen saturation. Of the 30 patients recruited, the mean age was 41.7 (SD=3.10) with the majority female (63.3%). We found that foot massage has a significant impact on the improvement of the mean arterial pressure, heart rate, respiration rate, and oxygen saturation at the second time measurement after 30 minutes intervention (p<0.05). Foot massage improves the hemodynamic status among patients admitted in intensive care unit. Future studies using a rigor method with large sample size is needed with control therapy and disease-associated factors.   Keywords: foot massage, hemodynamic, intensive care unit, intervention study


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