JACC: Clinical Electrophysiology

March 2017 DOI: 10.1016/j.jacep.2016.12.018
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Value of a Posterior Electrocardiographic Lead for Localization of Ventricular Outflow Tract Arrhythmias
The V4/V8 Ratio

Fengxiang Zhang, David Hamon, Zhen Fang, Yan Xu, Bing Yang, Weizhu Ju, Jason Bradfield, Kalyanam Shivkumar, Minglong Chen and Roderick Tung

Figure 2

Figure 2
Figure 2

Morphologies seen During Pacemapping From RVOT to LVOT

With more leftward and posterior progression anatomically, a gradient of decreasing R-wave is seen in posterior lead V5 (V8). AMC = aorto-mitral continuity; GCV-AIV = great cardiac vein-interventricular vein junction; LCC = left coronary cusp; RCC = right coronary cusp.

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