Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
2928590 | Indian Pacing and Electrophysiology Journal | 2012 | 4 Pages |
Abstract
A 62-year-old man without structural heart disease underwent electrophysiological testing for ventricular tachycardia (VT). Hemodynamically unstable VT was induced after isoproterenol (ISP) provocation. Electroanatomical mapping using a multipolar catheter identified the earliest activation originating from the posterior papillary muscle (PPM) where prepotentials preceding the local ventricular electrogram were observed. Irrigated radiofrequency current guided by the shadow of a multipolar catheter eliminated the VT. This case suggested that multipolar catheters may be helpful for identifying tachycardia origins arising from the PPM.
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Authors
Shiro Nakahara, Noritaka Toratani, Kan Takayanagi,