rotor ablation
Pronunciation: ROH-tor ab-LAY-shun
Targeted ablation of rotating electrical waves (rotors) identified as drivers of persistent atrial fibrillation.
Full Definition
Rotor ablation is a targeted ablation strategy that focuses on eliminating rotating electrical waves (rotors) identified as drivers of persistent atrial fibrillation. Using specialized mapping systems that can identify these spiral wave patterns, operators deliver ablation energy to the rotor core sites. This approach represents a mechanistic treatment based on the hypothesis that atrial fibrillation is maintained by a limited number of stable rotors, though clinical outcomes remain under investigation compared to traditional pulmonary vein isolation.
Usage
Usage note: Often associated with FIRM (Focal Impulse and Rotor Modulation) technology. Emerging technique with ongoing research.
In Context
- "Rotor ablation was performed at three identified driver sites in the left atrium." — Persistent AF ablation report
- "The FIRM mapping system identified two stable rotors requiring targeted ablation." — Advanced AF procedure note