Abstract 15457: Impact of the Novel Mobile Telemedicine System in Real-Time Transmission of Prehospital 12-Lead ECG for ST-Segment Elevation Acute Myocardial Infarction
Background: AHA/ACC guidelines recommend prehospital 12-lead ECG for patients with acute coronary syndromes (ACS). However, transmission of prehospital 12-lead ECG to emergency department (ED) is still not spread and ECG interpretation on the prehospital and ED is not established. Therefore, we previousely reported the usefulness of the mobile telemedicine system (MTS) to transmit 12-lead ECG and other parameters between moving ambulances and physicians in cardiac emergency.
Methods: We set up the MTS on an ambulance in clinical condition. Real time 12-lead ECG was transmitted together with vital signs and live video during transferring the patient by the ambulance. We assess the efficacy and usefulness of the MTS for the triage on 301 cardiovascular emergency cases from June 2008 to May 2011. During the same period, we had 441 ST-segment elevation myocardial infarction (STEMI) cases. 50 of these were used this MTS. Then, we compared various data between MTS (n=50) and non-MTS (n=391) groups with STEMI patients.
Results: We applied the MTS for 301 patients during the transfer to our ED. The mean time of using this MTS was 14±8 minutes. Of these, there were 84 patients (28%) with ACS [including 50 STEMI, 6 Non-STEMI, 26 unstable angina, and 2 recent MI] Real-time 12-lead ECGs were checked in clinical condition and all of them were comparable to those original ECGs in the ambulance and were useful for the triage to diagnose all AMI patients before arrival at hospital and for the rapid activation of catheterization laboratory. Door to balloon time (DBT) was shorter in MTS group (median 82 minutes) compared with non-MTS group (median 110 minutes) (p<0.001).
Conclusions: Accurate real-time 12-lead ECG transfer is useful for early diagnosis and the improvement in DBT for STEMI patients.
- © 2011 by American Heart Association, Inc.