Noncontact Mapping Guided Ablation of Right Ventricular Outflow Tract Ectopy in a Patient with Interruption of the Inferior Vena Cava and Azygos Continuation

Authors

  • IRENE VALVERDE M.D.,

    1. Electrophysiology Department, The Heart Hospital, University College Hospital & Institute of Cardiovascular Sciences, University College London, London
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  • A. ARYA M.D.,

    1. Electrophysiology Department, The Heart Hospital, University College Hospital & Institute of Cardiovascular Sciences, University College London, London
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  • RON BEN- SIMON M.D.,

    1. Electrophysiology Department, The Heart Hospital, University College Hospital & Institute of Cardiovascular Sciences, University College London, London
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  • JACK M. McCREADY M.D.,

    1. Electrophysiology Department, The Heart Hospital, University College Hospital & Institute of Cardiovascular Sciences, University College London, London
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  • ANNA HERREY Ph.D.,

    1. Electrophysiology Department, The Heart Hospital, University College Hospital & Institute of Cardiovascular Sciences, University College London, London
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  • PIER D. LAMBIASE M.D., Ph.D.

    Corresponding author
    • Electrophysiology Department, The Heart Hospital, University College Hospital & Institute of Cardiovascular Sciences, University College London, London
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  • Disclosures: None.

Address for reprints: Pier D. Lambiase. Ph.D., MRCP, Senior Lecturer and Consultant Cardiologist, The Heart Hospital, University College Hospital & Institute of Cardiovascular Sciences, UCL, 16–18 Westmoreland Street, London W1G 8PH. Fax: 0044-207-573 8847; e-mail: pier.lambiase@uclh.nhs.uk

Abstract

A 58-year-old woman with symptomatic multiple monomorphic premature ventricular beats of a right ventricular outflow tract origin was referred for ablation. An inferior vena cava interruption with azygos continuation was discovered during catheter placement. This case describes positioning of the noncontact mapping array and successful radiofrequency ablation in this challenging anatomy. (PACE 2013; 36:e129–e131)

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