Clinical Research in Cardiology

, Volume 95, Issue 4, pp 241–243 | Cite as

Entrapment of pacemaker lead by a large netlike Eustachian valve within the right atrium

  • Rüdiger Dissmann
  • Joachim Schröder
  • Heinz Völler
  • Steffen Behrens


During pacemaker implantation in a patient with permanent atrial fibrillation, it remained impossible to advance a passive fixation lead with fins through the right atrium. However, a lead with a retractable screw easily passed the right atrium and was positioned in the right ventricle. Transesophageal echocardiography revealed an extensive net–like perforated Eustachian valve within the right atrium that had caused entrapment of the anchor fins during lead implantation. Remnants of embryonal structures within the right atrium should be considered a rare possible barrier during pacemaker implantation.

Key words

Pacemaker implantation Chiari’s network Eustachian valve 


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Copyright information

© Steinkopff-Verlag 2006

Authors and Affiliations

  • Rüdiger Dissmann
    • 1
  • Joachim Schröder
    • 1
  • Heinz Völler
    • 2
  • Steffen Behrens
    • 3
  1. 1.Abteilung KardiologieKlinikum Bremerhaven Reinkenheide, Medizinische Klinik IBremerhavenGermany
  2. 2.Klinik am See Fachklinik für Herz und KreislauferkrankungenRüdersdorfGermany
  3. 3.Vivantes Humboldt KlinikumKlinik für Innere Medizin, Kardiologie und konservative IntensivmedizinBerlinGermany

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