Catheter Ablation of Ventricular Tachycardia Originating from the Left Posterior Papillary Muscle Guided by the Shadow of a Multipolar Catheter

Autor: Shiro Nakahara, MD PhD, Noritaka Toratani, MD, Kan Takayanagi, MD PhD
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: Indian Pacing and Electrophysiology Journal, Vol 12, Iss 4, Pp 186-189 (2012)
Druh dokumentu: article
ISSN: 0972-6292
DOI: 10.1016/S0972-6292(16)30525-3
Popis: 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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