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Published in: Journal of Clinical Monitoring and Computing 2/2022

23-01-2021 | Care | Original Research

Non-invasive electrical cardiometry cardiac output monitoring during prehospital helicopter emergency medical care: a feasibility study

Authors: Cornelis Slagt, Sjoerd Servaas, Rein Ketelaars, Geert-Jan van Geffen, Marijn Cornelia Theresia Tacken, Corien Alexandra Verrips, Lonneke Ankie Marcel Baggen, Gert Jan Scheffer, Lucas Theodorus van Eijk

Published in: Journal of Clinical Monitoring and Computing | Issue 2/2022

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Abstract

Purpose

Introducing advanced hemodynamic monitoring might be beneficial during Helicopter Emergency Medical Service (HEMS) care. However, it should not increase the on-scene-time, it should be easy to use and should be non-invasive. The goal of this study was to investigate the feasibility of non-invasive cardiac output measurements by electrical cardiometry (EC) and the quality of the EC signal during pre-hospital care provided by our HEMS.

Methods

A convenience sample of fifty patients who required HEMS assistance were included in this study. Problems with respect to connecting the patient, entering patient characteristics and measuring were inventoried. Quality of EC signal of the measurements was assessed during prehospital helicopter care. We recorded the number of measurements with a signal quality indicator (SQI) ≥ 80 and the number of patients having at least 1 measurement with a SQI ≥ 80. Furthermore, the SQI value distribution of the measurements within each patient was analysed.

Results

In the experience of the attending HEMS caregivers application of the device was easy and did not result in increased duration of on-scene time. Patch adhesion was reported as a concern due to clammy skin in 22% of all cases. 684 measurements were recorded during HEMS care. In 47 (94%) patients at least 1 measurement with an SQI ≥ 80 was registered. Of all recorded measurements 5.8% had an SQI < 40, 11.4% had an SQI 40–59, 14.9% had a SQI between 60 and 79 and 67.8% had SQI ≥ 80.

Conclusion

Cardiac output measurements are feasible during prehospital HEMS care with good quality of the EC signal. Monitoring was easy to use and quick to install. In our view it is an promising candidate for the prehospital setting. Further research is needed to determine its clinical value during clinical decision making.
Literature
1.
go back to reference World Health Statistics. Monitoring health for the sustainable development goals. Geneva: World health Organization; 2018. World Health Statistics. Monitoring health for the sustainable development goals. Geneva: World health Organization; 2018.
2.
go back to reference Evans JA, van Wessem KJ, McDougall D, Lee KA, Lyons T, Balogh ZJ. Epidemiology of traumatic deaths: comprehensive population-based assessment. World J Surg. 2010;34:158Y163.CrossRef Evans JA, van Wessem KJ, McDougall D, Lee KA, Lyons T, Balogh ZJ. Epidemiology of traumatic deaths: comprehensive population-based assessment. World J Surg. 2010;34:158Y163.CrossRef
3.
go back to reference Gaarder C, Holtan A, Naess PA. Prehospital point-of-care monitoring and goal-directed therapy: does it make a difference? J Trauma Acute Care Surg. 2015;78:S60–4.CrossRef Gaarder C, Holtan A, Naess PA. Prehospital point-of-care monitoring and goal-directed therapy: does it make a difference? J Trauma Acute Care Surg. 2015;78:S60–4.CrossRef
4.
go back to reference Barbee RW, Reynolds PS, Ward KR. Assessing shock resuscitation strategies by oxygen debt repayment. Shock. 2010;33:113Y122.CrossRef Barbee RW, Reynolds PS, Ward KR. Assessing shock resuscitation strategies by oxygen debt repayment. Shock. 2010;33:113Y122.CrossRef
9.
go back to reference Kubicek WG, Karnegis JN, Patterson RP, Witsoe DA, Mattson RH. Development and evaluation of an impedance cardiac output system. Aerosp Med. 1966;37:1208–12.PubMed Kubicek WG, Karnegis JN, Patterson RP, Witsoe DA, Mattson RH. Development and evaluation of an impedance cardiac output system. Aerosp Med. 1966;37:1208–12.PubMed
10.
go back to reference 10Bernstein DP, Osypka MJ (2003) Apparatus and method for determining an approximation of the stroke volume and the cardiac output of the heart. US Patent 6,511,438 2003. 10Bernstein DP, Osypka MJ (2003) Apparatus and method for determining an approximation of the stroke volume and the cardiac output of the heart. US Patent 6,511,438 2003.
20.
go back to reference Boyd O, Bennett ED. Enhancement of perioperative tissue perfusion as a therapeutic strategy for major surgery. New Horiz. 1996;4:453–65.PubMed Boyd O, Bennett ED. Enhancement of perioperative tissue perfusion as a therapeutic strategy for major surgery. New Horiz. 1996;4:453–65.PubMed
25.
go back to reference Trinkmann F, Berger M, Michels JD, Christina Doesch C, Weiss C, Schoenberg SO, Akin I, Borggrefe M, Papavassiliu T, Saur J. Influence of electrode positioning on accuracy and reproducibility of electrical velocimetry cardiac output measurements. Physiol Meas. 2016;37:1422–35.CrossRef Trinkmann F, Berger M, Michels JD, Christina Doesch C, Weiss C, Schoenberg SO, Akin I, Borggrefe M, Papavassiliu T, Saur J. Influence of electrode positioning on accuracy and reproducibility of electrical velocimetry cardiac output measurements. Physiol Meas. 2016;37:1422–35.CrossRef
26.
go back to reference Rhodes A, Evans LE, Alhazzani W, et al. Surviving Sepsis Campaign: International Guidelines for Management of Sepsis and Septic Shock: 2016. Intensive Care Med. 2017;43:304–77.CrossRef Rhodes A, Evans LE, Alhazzani W, et al. Surviving Sepsis Campaign: International Guidelines for Management of Sepsis and Septic Shock: 2016. Intensive Care Med. 2017;43:304–77.CrossRef
27.
go back to reference Carney N, Totten AM, Reilly C, Ullman JS, Hawryluk GW, Bell MJ, Bratton SL, Chesnut R, Harris OA, Kissoon N, Rubiano AM, Shutter L, Tasker RC, Vavilala MS, Wilberger J, Wright DW, Ghajar J. Guidelines for the management of severe traumatic brain injury, fourth edition. Neurosurgery. 2017;80:6–15.CrossRef Carney N, Totten AM, Reilly C, Ullman JS, Hawryluk GW, Bell MJ, Bratton SL, Chesnut R, Harris OA, Kissoon N, Rubiano AM, Shutter L, Tasker RC, Vavilala MS, Wilberger J, Wright DW, Ghajar J. Guidelines for the management of severe traumatic brain injury, fourth edition. Neurosurgery. 2017;80:6–15.CrossRef
Metadata
Title
Non-invasive electrical cardiometry cardiac output monitoring during prehospital helicopter emergency medical care: a feasibility study
Authors
Cornelis Slagt
Sjoerd Servaas
Rein Ketelaars
Geert-Jan van Geffen
Marijn Cornelia Theresia Tacken
Corien Alexandra Verrips
Lonneke Ankie Marcel Baggen
Gert Jan Scheffer
Lucas Theodorus van Eijk
Publication date
23-01-2021
Publisher
Springer Netherlands
Keyword
Care
Published in
Journal of Clinical Monitoring and Computing / Issue 2/2022
Print ISSN: 1387-1307
Electronic ISSN: 1573-2614
DOI
https://doi.org/10.1007/s10877-021-00657-5

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