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Ablation above the semilunar valves: When, why, and how? Part I

  • Mahmoud Suleiman
    Affiliations
    Division of Cardiovascular Diseases, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota
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  • Samuel J. Asirvatham
    Correspondence
    Address reprint requests and correspondence: Samuel J. Asirvatham, M.D., Division of Cardiovascular Diseases, Associate Professor of Medicine, Mayo Clinic College of Medicine, 200 First Street Southwest, Rochester, Minnesota 55905
    Affiliations
    Division of Cardiovascular Diseases, Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota
    Search for articles by this author
      In this two-part series, we discuss the anatomical basis for arrhythmias arising above the semilunar valves. In this part (part I), we describe the relevant anatomy and technique for mapping and ablation of ventricular arrhythmias arising above either the pulmonic or the aortic valve. After an initial discussion of the underlying anatomy and characteristics of the substrate targeted for ablation above the semilunar valve, an approach for safe and effective ablation of supravalvar ventricular arrhythmias is presented.

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