Contactless portable respiratory rate monitor (CPRM) accurately measures respiratory rate in children

DAW, Will, KINGSHOTT, Ruth, SAATCHI, Reza and ELPHICK, Heather (2016). Contactless portable respiratory rate monitor (CPRM) accurately measures respiratory rate in children. Archives of Disease in Childhood, 101 (Supp 1), A290-A291.

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Background: Respiratory rate (RR) is an important vital sign used in the initial and ongoing assessment of unwell children. It is used in Paediatric Early Warning Scores to assess a child’s clinical status and as a predictor of serious deterioration. Convenient electronic devices exist for the measurement of pulse, blood pressure, oxygen saturation and temperature that provide accurate and prompt measures of vital signs. Devices for monitoring RR have entered the commercial market but there is no device currently available that gives an accurate and rapid assessment of RR in clinical practice. Aim: We have developed a contactless portable respiratory rate monitor (CPRM) and aimed to measure agreement with existing methods of RR measurement. Method: Respiratory rate data were collected from 30 children undergoing polysomnography sleep studies at a tertiary children’s hospital. Measurements from respiratory inductance plethysmography (RIP) bands (established contact method), visual counting of chest movements (established non-contact method) and the CPRM (developed device) were all obtained simultaneously and compared. Two to three data sets were collected for each child. A total of 61 recordings were obtained from children ranging from 8 months to 15 years. Results: Data showed substantial agreement between measurements from the CPRM and the gold standard RIP (Interclass correlation coefficient 0.762: 95% CI 0.633–0.850). When two patients with significantly dysfunctional breathing were removed from the analysis, the CPRM showed a much higher correlation with the gold standard RIP method (Interclass correlation coefficient 0.981: 95% CI 0.968- 0.989) with 95% limits of agreement –2.49–0.77 breaths/min. Conclusion: A portable contactless device developed in this study can accurately and quickly measure respiratory rate. Such a device will be an important tool in the initial assessment of unwell children. There is currently no such device on the market. More testing is needed to explore outlying measurements and to evaluate in different clinical settings. Further development and modification of the device and software are ongoing.

Item Type: Article
Additional Information: Suppliment : Royal College of Paediatrics and Child Health, Abstract from the Annual Conference, 26–28 April 2016, ACC, Liverpool. Abstract: G490
Research Institute, Centre or Group: Materials and Engineering Research Institute > Centre for Automation and Robotics Research > Mobile Machine and Vision Laboratory
Departments: Faculty of Science, Technology and Arts > Engineering and Mathematics
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Depositing User: Reza Saatchi
Date Deposited: 30 Nov 2016 11:58
Last Modified: 13 Jun 2017 13:55

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