Accepted for/Published in: JMIR mHealth and uHealth
Date Submitted: Sep 5, 2020
Date Accepted: Mar 11, 2021
Warning: This is an author submission that is not peer-reviewed or edited. Preprints - unless they show as "accepted" - should not be relied on to guide clinical practice or health-related behavior and should not be reported in news media as established information.
12-Lead Electrocardiogram Acquisition with a Patchy-Type Wireless Device During Ambulance Transport
ABSTRACT
Background:
Cardiovascular disease is the leading cause of death worldwide. Early recognition, early diagnosis, and early reperfusion are the key elements of treatment for ST-segment elevation myocardial infarction. Absence of prehospital 12-lead electrocardiogram (P12ECG) can cause definitive treatment delay and repeated transfer. Although guidelines highly recommend the measuring and transmitting of P12ECG data, P12ECG use has not been widely established.
Objective:
The aim of this study was to verify the time-efficiency and feasibility of using a patchy-type 12-lead ECG measuring and transmitting device by an emergency medical technician (EMT) in the ambulance during patient transport.
Methods:
This was a prospective randomized crossover controlled study that was simulation-based and included 119 emergency medical technicians. Participants were randomly assigned to one of two groups. Group A first underwent experiments with a conventional device and then transferred to an intervention device, and group B first underwent experiments with an intervention device and then transferred to a conventional device. All tests were conducted inside an ambulance driving at 30 km/h. The time interval was measured from the beginning of the ECG test application to the completion of sending the results. After the simulation test, participants were administered the System Usability Scale.
Results:
A total of 18 emergency medical technicians were recruited in this study, and the median age was 35 years old. The overall interval time for the conventional device was 254 s (interquartile range 247-270), whereas the overall interval time for the intervention device was 130 s (interquartile range 112-150) for significant differences (P<.001). Significant differences between the conventional device and intervention device were identified in all time intervals, and for all intervals except interval 1, the intervention device was found to be significantly faster. In interval 1, the conventional device was found to be faster than the intervention device (P=.034).
Conclusions:
The capture and transmission of P12ECG data using patch-type ECG recorders in the transporting ambulance is faster compared with the use of a conventional defibrillator device. This study is registered at ClinicalTrials.gov (NCT04114760). Clinical Trial: This study was approved by the Samsung Medical Center Institutional Review Board (No. 2019-04-004) and registered at ClinicalTrials.gov (NCT04114760).
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