Catheter ablation of ventricular tachycardia in patients with structural heart disease using cooled radiofrequency energy
Results of a prospective multicenter study
Hugh Calkins, MD, FACCa,
Andrew Epstein, MD, FACCa,
Douglas Packer, MD, FACCa,
Amelia M. Arria, PhDa,
John Hummel, MD, FACCa,
David M. Gilligan, MD, FACCa,
Janet Trusso, RNa,
Mark Carlson, MD, FACCa,
Richard Luceri, MD, FACCa,
Harry Kopelman, MD, FACCa,
David Wilber, MD, FACCa,
J. Marcus Wharton, MD, FACCa,
William Stevenson, MD, FACCa for the Cooled RF Multi Center Investigators Group*
a Johns Hopkins University Schools of Medicine and Public Health, Baltimore, Maryland, USA
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Figure 1 Schematic drawing showing the cooled RF ablation catheter. Cooling is achieved by circulating saline through the ablation electrode.
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Figure 2 Kaplan-Meier curve showing freedom from arrhythmia recurrence among patients who underwent ablation of VT.
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Figure 3 Kaplan-Meier curve showing freedom from arrhythmia recurrence among patients who underwent catheter ablation of VT subclassified by whether the patient was discharged with or without an ICD.
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Figure 4 Kaplan-Meier curve showing patient survival after ablation of VT.
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