Localization of the origin of arrhythmias for ablation: From electrocardiography to advanced endocardial mapping systems

Dawood Darbar, Jeffrey E. Olgin, John M. Miller, Paul A. Friedman

Research output: Contribution to journalArticle

21 Scopus citations


Radiofrequency catheter ablation techniques have had a dramatic impact on the treatment of a variety of cardiac arrhythmias. However, catheter ablation of complex arrhythmias, such as intra-atrial reentry, ventricular tachycardias, and atrial fibrillation, continues to pose a major challenge. This stems from limitations of fluoroscopy and conventional catheter-based mapping techniques that limit the accurate anatomic localization of complex arrhythmogenic substrates. In this article, ECG features of complex arrhythmias are reviewed, which may facilitate the planning of an ablation procedure. The physical principles of the newly available catheter-based endocardial mapping techniques and their clinical applicability for treatment of complex arrhythmias are discussed. The role of intracardiac echocardiography to facilitate mapping and ablation is reviewed.

Original languageEnglish (US)
Pages (from-to)1309-1325
Number of pages17
JournalJournal of cardiovascular electrophysiology
Issue number11
StatePublished - Jan 1 2001



  • Arrhythmia
  • Basket catheter
  • Electroanatomic mapping
  • Endocardial mapping
  • Intracardiac echocardiography
  • Noncontact mapping

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Physiology (medical)

Cite this