Multiple macroreentrant ventricular tachycardias exhibiting centrifugal endocardial activations from the scar border zone after myocardial infarction

Takumi Yamada, Yoshimasa Murakami, Masahiro Muto, Naoki Yoshida, G. Neal Kay

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

A 53-year-old man with a ventricular tachycardia (VT) electrical storm during the chronic phase of an extensive anteroseptal myocardial infarction underwent electrophysiologic testing and catheter ablation. An electroanatomical map during 7 induced macroreentrant VTs demonstrated multiple centrifugal endocardial activations from sites that were located at the circumferential border zone of a large scar area. Interestingly, during the radiofrequency catheter ablation of 4 of the VTs, the elimination of the substrate of the previous VTs converted one VT to another probably because those VTs might have shared a central common pathway of the macroreentrant circuit with different exits.

Original languageEnglish (US)
Pages (from-to)160-164
Number of pages5
JournalJournal of Electrocardiology
Volume41
Issue number2
DOIs
StatePublished - Mar 2008
Externally publishedYes

Keywords

  • Centrifugal endocardial activation
  • Myocardial infarction
  • Radiofrequency catheter ablation
  • Scar border zone
  • Ventricular tachycardia

Fingerprint Dive into the research topics of 'Multiple macroreentrant ventricular tachycardias exhibiting centrifugal endocardial activations from the scar border zone after myocardial infarction'. Together they form a unique fingerprint.

Cite this