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Right arrow Electrophysiology - arrhythmias

J Thorac Cardiovasc Surg 2012;144:e101-e102
© 2012 The American Association for Thoracic Surgery

Case Report

Bipolar radiofrequency ablation for left ventricular aneurysm–related ventricular arrhythmia

Yang Yu, MD, PhD, Ming-xin Gao, MD, Chuan Wang, MD, Cheng-xiong Gu, MD*

Department of Cardiac Surgery, Beijing An Zhen Hospital, Capital Medical University, Beijing, China

Received for publication May 27, 2012; accepted for publication June 18, 2012.

* Address for reprints: Cheng-xiong Gu, MD, Department of Cardiac Surgery, Beijing An Zhen Hospital, Capital Medical University, Beijing 100029, China. (Email: anzhengu@sina.com).

The first 20% of the full text of this article appears below.


   Introduction
 
Surgery is an effective treatment for left ventricular aneurysm (LVA). However, sudden cardiac death caused by malignant ventricular arrhythmia (VA) occurring between 30 days and 5 years postoperation accounts for 29.6% and 36.8% of the total deaths recorded, respectively.1Go Radiofrequency ablation is commonly used for treating VA.2Go We report a patient with ventricular tachycardia who underwent LVA repair and bipolar radiofrequency ablation with good preliminary efficacy.


   Clinical Summary
 
A 53-year-old man with a history of diabetes mellitus and myocardial infarction was referred for cardiac surgery for unstable angina. His cardiac function was New York Heart Association grade IV. Coronary angiography showed triple-vessel lesions. Echocardiography revealed paradoxical cardiac movements of the left ventricle in the systolic phase, a left ventricular ejection fraction of 0.32, and a left ventricular end-diastolic diameter of 60 mm. The LVA was located in the apex of the left ventricle without mural thrombosis. Electrocardiography and Holter monitoring confirmed the presence of frequent multifocal VA (67540/24 hours) and paroxysmal ventricular tachycardia. An electrophysiology study using the CARTO system . . . [Full Text of this Article]






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