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ORIGINAL ARTICLE
Year : 2016  |  Volume : 10  |  Issue : 1  |  Page : 37-43

Initial outcome following invasive cardiac electrophysiologic studies and radiofrequency ablation of ventricular tachycardia


1 Department of Medicine, Federal Medical Centre, Umuahia, Nigeria; Department of Cardiac Electrophysiology, Institute of Cardio-Vascular Diseases, Madras Medical Mission, Chennai, Tamil Nadu, India
2 Electrophysiology and Biomedical Engineering, St. Jude Medical, Chennai, Tamil Nadu, India
3 Department of Cardiac Electrophysiology, Institute of Cardio-Vascular Diseases, Madras Medical Mission, Chennai, Tamil Nadu, India
4 Department of Laboratory Technology, Institute of Cardio-Vascular Diseases, Madras Medical Mission, Chennai, Tamil Nadu, India
5 Department of Medicine, Madras Medical Mission, Chennai, Tamil Nadu, India
6 Department of Cardiology, Institute of Cardio-Vascular Diseases, Madras Medical Mission, Chennai, Tamil Nadu, India

Correspondence Address:
Kelechukwu Uwanuruochi
Department of Medicine, Federal Medical Centre, Umuahia, PMB 7001, Nigeria

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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0331-3131.189799

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Background: Cardiac electrophysiologic study (EPS) and radiofrequency (RF) ablation have become an established mode of treatment for patients with refractory arrhythmias. These procedures are carried out regularly at the cardiac catheterization laboratory of Madras Medical Mission India. Objective: The purpose of this study was to evaluate our experience with cardiac EPSs and Radiofrequency ablations (RFAs) of ventricular tachycardia (VT). Methods: This was a retrospective study carried out in the Cardiac Electrophysiology Department of the Institute of Cardiovascular Diseases, Madras Medical Mission, India. All cases diagnosed to have VT following cardiac EPS between January 2010 and April 2014 were selected for the study. The records which were obtained from the Cardiac Electrophysiology Clinical Research Office of Madras Medical Mission were reviewed. One hundred and thirteen cases were chosen for the analysis, using SPSS statistical software version 15. Results: There were 113 patients, comprised 78 males and 35 females. The mean age was 48.79 years. Common etiologic classes of VT were idiopathic outflow tract VT - 50.4%, ischemic heart disease - 20.4%, arrhythmogenic right ventricular cardiomyopathy (ACMP) - 11.5%, and idiopathic dilated cardiomyopathy (IDCM) - 12.4%. Ablation was attempted in 92 (82.1%). The initial outcome was highest in IDCM, 87.5%, and least in ACMP, 50.0%. Conclusions: Treatment of VT by RFA is comparatively effective and safe.


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