Detection of the left accessory pathway with synthesized 18-lead electrocardiography in WPW syndrome

Keiji Matsunaga,Makoto Ishizawa,Tetsuo Minamino,Takahisa Noma,Yuichi Miyake,Teppei Tsuji

doi:10.15761/tim.1000167

Abstract

Detection of the left accessory pathway with synthesized 18-lead electrocardiography in WPW syndrome

Highlights

The synthesized 18-lead electrocardiography (18 lead-ECG) provides right-sided leads (V3R, V4R and V5R) and back leads via a mathematical computation so that only the standard 12 leads are used, and additional leads or techniques are not required [1]. 18 lead-ECG is useful for diagnosing the origin of a premature ventricular contraction and the risk area of myocardial infarction [2]
Since the polarity of the delta wave is the same as the polarity of ventricular extrasystoles from the mitral annulus, we can determine the location of the left accessory pathway
We show the 18 lead-ECG from a patient (Figure 1B)

Summary

Introduction

The synthesized 18-lead electrocardiography (18 lead-ECG) provides right-sided leads (V3R, V4R and V5R) and back leads (synV7, synV8 and synV9) via a mathematical computation so that only the standard 12 leads are used, and additional leads or techniques are not required [1]. 18 lead-ECG is useful for diagnosing the origin of a premature ventricular contraction and the risk area of myocardial infarction [2]. If we analyze the 18 lead-ECG, we can detect the delta wave polarity change because normal chest leads, and synthesized back leads are positioned to surround the mitral annulus (Figure 1A).

Results

Conclusion