Unique ID issued by UMIN | UMIN000032021 |
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Receipt number | R000035444 |
Scientific Title | Accuracy of respiratory rate monitoring measured using a microwave doppler senser |
Date of disclosure of the study information | 2018/03/30 |
Last modified on | 2021/07/04 05:23:01 |
Accuracy of respiratory rate monitoring measured using a microwave doppler senser
Accuracy of respiratory rate monitoring measured using a microwave doppler senser
Accuracy of respiratory rate monitoring measured using a microwave doppler senser
Accuracy of respiratory rate monitoring measured using a microwave doppler senser
Japan |
Natural airway patients at intensive care units
Intensive care medicine |
Others
NO
We investigate the usefulness of respiratory rate monitoring of ceiling installed type microwave doppler senser.
Efficacy
Confirmatory
Comparison with the accuracy of the respiratory rate measured using a microwave doppler sensor and that measured by actual measurement values
Comparison of accuracy of respiratory rate between actual measurement values and following two methods; i.e. thoracic impedance method and capno monitoring method
Observational
20 | years-old | <= |
Not applicable |
Male and Female
(1) Patients who are over 20 years old
(2) Patients who entered following intensive care units (i.e. Yokohama City University Hospital intensive care unit, Yokohama Municipal Stroke/Neurological Center intensive care unit)
(3) Patients who were obtained consents of this study
(1) Patients who were not obtained consents of this study
(2) Patients undergoing respiratory management by ventilator
(3) Patients who were judged as an unsuitable subject by the research director
60
1st name | Shunsuke |
Middle name | |
Last name | Takaki |
Yokohama City Universty Hospital
Department of Anesthesiology and Critical Care
236-0004
3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa, Japan
+81457872800
shunty5323@gmail.com
1st name | Hiroyuki |
Middle name | |
Last name | Tanaka |
Yokohama City Universty Hospital
Department of Anesthesiology and Critical Care
236-0004
3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa, Japan
+81457872800
https://www.yokohama-cu.ac.jp/fukuhp/
tanaka@nms.ac.jp
Yokohama City Universty, Department of Anesthesiology and Critical Care
KONICA MINOLTA, INC.
Profit organization
Yokohama City University, Department of Anesthesiology and Critical Care
3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa, Japan
+81457872800
tanaka@nms.ac.jp
NO
横浜市立大学附属病院(神奈川県)
2018 | Year | 03 | Month | 30 | Day |
Unpublished
https://doi.org/10.1007/s10877-021-00733-w
52
Among 52 participants, there were 336 (microwave Doppler sensor), 275 (capnography), and 336 (thoracic impedance pneumography) paired respiratory rate data points. Bias (95% limits of agreement) estimates were as follows:
microwave Doppler sensor,0.3(-6.1 to 6.8)breaths/min; capnography, -1.3(-8.6 to 6.0)breaths/min; thoracic impedance pneumography, 0.1(-4.4 to 4.7)breaths/min.
2021 | Year | 07 | Month | 04 | Day |
2021 | Year | 06 | Month | 30 | Day |
None
Outcomes were estimates of bias and 95%
limits of agreement between respiratory rates determined by visual counting and those determined using the microwave Doppler sensor, capnography and thoracic impedance pneumography, respectively.
Main results already published
2017 | Year | 12 | Month | 20 | Day |
2017 | Year | 12 | Month | 20 | Day |
2018 | Year | 03 | Month | 30 | Day |
2021 | Year | 06 | Month | 30 | Day |
2021 | Year | 06 | Month | 30 | Day |
2021 | Year | 06 | Month | 30 | Day |
2021 | Year | 06 | Month | 30 | Day |
Methods:
1)Patients background is investigated and collected from patients' medical records at the time of case registration.
2)Data collection
A charge nurse measures the number of the movement of patients' thorax for 1 minute, every 1 hour. This number is defined as actual measurement values (i.e. reference value).
The respiratory rate of the following three ways are recorded at the same time; a microwave doppler senser, capno monitoring method and thoracic impedance method.
3)Analysis methods
A)The correlation coefficients between each method are calculated by Spearman rank sum test.
B)Bland-Altman analysis for repeated measured is performed to calculate the Bias, precision and 95% limits of agreement between each respiratory rate measurements.
The interchangeability between the two methods defines pulse and minuse 3 breaths per minute.
2018 | Year | 03 | Month | 30 | Day |
2021 | Year | 07 | Month | 04 | Day |
Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000035444
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