Epicardial Ablation of Ventricular Tachycardia with Manual Controlled External Irrigation in a Patient with Nonischemic Cardiomyopathy

Takanori Arimoto; Yukio Sekiguchi; Hiroshi Tada; Takashi Koyama; Miyako Igarashi; Hiro Yamasaki; Kenji Kuroki; Takeshi Machino; Kyoko Soejima; Kazutaka Aonuma

doi:10.4020/jhrs.25.101

Case Reports

Epicardial Ablation of Ventricular Tachycardia with Manual Controlled External Irrigation in a Patient with Nonischemic Cardiomyopathy

Takanori Arimoto ^†, Yukio Sekiguchi ^†, Hiroshi Tada ^†, Takashi Koyama ^†, Miyako Igarashi ^†, Hiro Yamasaki ^†, Kenji Kuroki ^†, Takeshi Machino ^†, Kyoko Soejima ^†, Kazutaka Aonuma ^†

Author information

Takanori Arimoto ^†
Cardiovascular Division, Institute of Clinical Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba
Yukio Sekiguchi ^†
Cardiovascular Division, Institute of Clinical Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba
Hiroshi Tada ^†
Cardiovascular Division, Institute of Clinical Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba
Takashi Koyama ^†
Cardiovascular Division, Institute of Clinical Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba
Miyako Igarashi ^†
Cardiovascular Division, Institute of Clinical Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba
Hiro Yamasaki ^†
Cardiovascular Division, Institute of Clinical Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba
Kenji Kuroki ^†
Cardiovascular Division, Institute of Clinical Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba
Takeshi Machino ^†
Cardiovascular Division, Institute of Clinical Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba
Kyoko Soejima ^†
Division of Cardiology, Department of Medicine, Keio University School of Medicine
Kazutaka Aonuma ^†
Cardiovascular Division, Institute of Clinical Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba
Author contributions

†These authors contributed equally: Takanori Arimoto, Yukio Sekiguchi, Hiroshi Tada, Takashi Koyama, Miyako Igarashi, Hiro Yamasaki, Kenji Kuroki, Takeshi Machino, Kyoko Soejima, Kazutaka Aonuma

Keywords: Ventricular tachycardia, Epicardial, Catheter ablation, Irrigation

JOURNAL FREE ACCESS

2009 Volume 25 Issue 2 Pages 101-106

DOI https://doi.org/10.4020/jhrs.25.101

Details

Abstract

We describe a patient with nonischemic cardiomyopathy who underwent radiofrequency (RF) catheter ablation for a drug-refractory ventricular tachycardia (VT). RF ablation from a left ventricular (LV) endocardial site failed to eliminate the VT. Using a conventional ablation catheter with the temperature-controlled mode, RF ablation from the LV epicardium resulted in failed ablation because of low power due to a temperature limitation function. However, by using a pericardial pigtail catheter for manual infusion and removal of saline within the pericardial space, adequate energy could be delivered, and the ablation overlying the low-voltage area successfully eliminated the VT.

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