Dual-loop intra-atrial re-entry tachycardia in a patient with ischaemic cardiomyopathy

P. Ott

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


A 65-year-old man with ischaemic cardiomyopathy (three prior coronary artery bypass surgery procedures), underwent catheter ablation for recurrent atrial flutter. Electrophysiological study initially revealed clockwise, tricuspid annulus/inferior vena cava isthmus dependent, atrial flutter. During radiofrequency energy ablation atrial flutter changed into a different atrial tachycardia without change in cycle length or interruption of the tachycardia. The new tachycardia was a right atrial free wall re-entry tachycardia. Thus the two atrial tachycardias formed a dual-loop ('figure-of-eight') re-entry circuit, possibly due to atrial scar tissue from multiple cardiac surgery procedures.

Original languageEnglish (US)
Pages (from-to)207-210
Number of pages4
Issue number2
StatePublished - Apr 2002


  • Atrial flutter
  • Atrial tachycardia
  • Radiofrequency energy catheter ablation

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Physiology (medical)


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