Reconnection
Recovery of electrical conduction across previously isolated tissue, representing incomplete ablation lesions.
Full Definition
Reconnection refers to the recovery of electrical conduction across cardiac tissue that was previously successfully isolated during ablation procedures. This phenomenon typically occurs due to incomplete transmural lesion formation, resulting in gaps in the ablation line that allow electrical impulses to propagate across the barrier. Reconnection is a major cause of arrhythmia recurrence following ablation and can be detected during repeat procedures by the presence of electrical activity in previously isolated regions. Prevention requires ensuring complete transmural lesions with appropriate energy delivery parameters.
Usage
Usage note: Primary mechanism of arrhythmia recurrence after ablation. Requires careful distinction from new pathways.
In Context
- "Reconnection was identified in the left superior pulmonary vein during the repeat ablation procedure." — Repeat procedure report
- "Careful assessment revealed reconnection gaps that explained the recurrent atrial fibrillation." — Follow-up evaluation