EASI导联体系心电监护仪设计方案.doc

Table of Contents What is EASI ECG Monitoring? 3 Advantages of the EASI ECG monitoring system 4 Disadvantages of the EASI ECG monitoring System 4 Comparisons between the EASI and Mason-Likar 12 lead ECG systems 5 Summary of the Research 6 Methods 6 Detection of acute ischaemia and Myocardial Infarction (MI) 6 Lead amplitudes 7 Conduction and rhythm disturbances 7 Misdiagnosis 7 Limitations 8 Summary 8 APPENDIX 1. Summary Table by Author 9 APPENDIX 2. Summary Table by Parameter 13 References 19 What is EASI ECG Monitoring? EASI is a method of continuous electrocardiogram (ECG) monitoring that is an alternative to both the commonly used 5-electrode lead bedside monitoring system and the traditional 10-electrode Mason-Likar 12–lead ECG system. The EASI lead configuration enables continuous 12 lead ECG ambulatory monitoring using only 5 electrodes. The EASI 12 lead ECG is derived from this reduced lead set using a method described by Dower et al. [1-3]. The EASI 12-lead ECG is derived from a set of 5 leads; 4 recording electrodes and one grounding electrode. The placement of these leads is as follows [4]. E: Lower extreme of the sternum A: Left mid-axillary line, same transverse line as E S: Sternal manubrium I: Right mid-axillary line, same transverse line as E G: Fifth electrode is the ground and can be placed anywhere on the torso Diagram of EASI electrode placement [4 p. 180] Advantages of the EASI ECG monitoring system Easy to apply. The EASI is a 5 electrode system that provides a 12-lead ECG, making it easier to rapidly and accurately apply the leads in stressful situations [4]. Time saving for staff. As a continuous 12-lead ECG is produced, there is no need to perform traditional intermittent 12-lead ECGs. Continuous 12-lead ECG. The reduced set of leads provides continuous 12-lead ECG monitoring as opposed to a snapshot 10-15 second view ECG with the traditional ECG [5]. Better patient comfort. The reduced set of EASI leads is less bulky than a 10-elec