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Entrainment techniques for mapping atrial and ventricular tachycardias
W G Stevenson1, P T Sager, P L Friedman
1Department of Internal Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.
Journal of Cardiovascular Electrophysiology
|March 1, 1995
Summary
Entrainment mapping helps identify critical sites within macroreentrant circuits causing atrial tachycardias and ventricular tachycardias. This technique distinguishes circuit sites from bystander areas, guiding effective catheter ablation strategies.
Area of Science:
- Electrophysiology
- Cardiology
Background:
- Atrial tachycardias, atrial flutter, and ventricular tachycardias often involve large macroreentrant circuits.
- Defining these circuits precisely using traditional catheter mapping can be challenging.
Purpose of the Study:
- To review the utility of entrainment techniques in assessing mapping sites relative to reentrant circuits.
- To provide a classification system for mapping sites to guide catheter ablation.
Main Methods:
- Utilizing entrainment techniques during catheter mapping.
- Assessing the relationship of individual mapping sites to the reentrant circuit on a site-by-site basis.
Main Results:
- Entrainment techniques enable differentiation between sites within the reentrant circuit and bystander sites.
- This differentiation aids in understanding the circuit's anatomy and function.
Conclusions:
- Entrainment mapping is a valuable tool for defining macroreentrant circuits.
- A structured mapping site classification based on entrainment can improve catheter ablation guidance.