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Clinical Research in Cardiology

, Volume 107, Issue 7, pp 607–610 | Cite as

Successful localization and ablation of a Mahaim potential using a high-resolution mapping catheter after a failed conventional ablation attempt

  • Patrick Lugenbiel
  • Panagiotis Xynogalos
  • Patrick Schweizer
  • Hugo A. Katus
  • Dierk Thomas
  • Eberhard P. Scholz
Letter to the Editors
  • 203 Downloads

Sirs:

Mahaim fibers are a rare sub-type of right-sided accessory pathways with exclusively antegrade decremental conduction properties. Since the ventricular insertion of the pathway is often located within the Purkinje system of the right ventricle, Mahaim tachycardia is typically characterized by wide complexes of left bundle branch block morphology. Successful ablation is generally performed by targeting characteristic (His-like) Mahaim potentials located at the lateral tricuspid anulus [1, 2]. However, the exact localization of these subtle pathway signals along the tricuspid anulus can be challenging and remains unsuccessful in a relevant number of cases. High-resolution multi-electrode mapping catheters are increasingly applied for improving the mapping resolution within areas of low-voltage [3]. We tested the hypothesis that a multi-electrode high-resolution mapping catheter (PentaRay™, Biosense Webster, Diamond Bar, CA) might help localizing the Mahaim potential in a patient...

Supplementary material

392_2018_1231_MOESM1_ESM.pdf (526 kb)
Supplementary material 1 (PDF 525 KB)

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Patrick Lugenbiel
    • 1
    • 2
  • Panagiotis Xynogalos
    • 1
    • 2
  • Patrick Schweizer
    • 1
    • 2
  • Hugo A. Katus
    • 1
    • 2
    • 3
  • Dierk Thomas
    • 1
    • 2
    • 3
  • Eberhard P. Scholz
    • 1
    • 2
    • 3
  1. 1.Heidelberg Center for Heart Rhythm Disorders (HCR) & Department of Cardiology, Angiology, and PneumologyUniversity Hospital HeidelbergHeidelbergGermany
  2. 2.Department of CardiologyUniversity of HeidelbergHeidelbergGermany
  3. 3.DZHK (German Centre for Cardiovascular Research), Partner Site Heidelberg/MannheimHeidelbergGermany

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