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  • Title: Recurrent ventricular arrhythmia after coronary artery bypass grafting treated with radiofrequency catheter ablation.
    Author: Atik FA, Garcia MF, Baggio JM, Faber CN, Corso RB, Caneo LF, Sarabanda AV.
    Journal: Ann Thorac Surg; 2009 Feb; 87(2):631-3. PubMed ID: 19161802.
    Abstract:
    A 63-year-old diabetic woman was emergently submitted to coronary artery bypass grafting in the setting of acute myocardial infarction. Recurrent, drug-refractory episodes of ventricular arrhythmia occurred for 2 weeks postoperatively, despite no documentation of ongoing myocardial ischemia and optimum medical treatment. Ventricular arrhythmia was initiated by premature ventricular contractions originating from the Purkinje system within the infarct border zone. Radiofrequency catheter ablation was performed at sites where Purkinje potentials were recorded, leading to arrhythmia cessation. A week later, an implantable cardioverter defibrillator was inserted and she was discharged home a few days later. At 15-month follow-up, there were no further episodes of arrhythmia and ventricular function had improved.
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