Effect of Radiofrequency Ablation in Patients With Ventricular Arrhythmia Undergoing CABG

Impact of Radiofrequency Ablation Therapy in Coronary Artery Bypass Grafts Surgery on Outcomes in Patients With Myocardial Infarction Related Ventricular Arrhythmia

Patients with myocardial infarction related potential malignant ventricular arrhythmia have high risk of sudden death. The aim of this clinical trial is evaluating therapeutic efficacy of unipolar or bipolar radiofrequency ablation in Coronary Artery Bypass Grafts (CABG) Surgery, which can reduce myocardial ischemia and block reentry circuits of ventricular arrhythmia at the same time. The observation indexes include the morbidity of potential malignant ventricular arrhythmia and major adverse cardiovascular events in mid-long-term after CABG surgery.

Inclusion Criteria:

• The patients have been receiving coronary artery bypass grafts from 2015.1-2017.12
• The patients had old myocardial infarction related potential malignant ventricular arrhythmia
• Anti-arrhythmic drug treatment is invalid
• All enrolled patients must being signed the informed consent

Exclusion Criteria:

• Severe heart failure( ejection fraction under 35%)
• Patients with acute myocardial infarction
• Patients with ICD implanted