Bradycardia-dependent conduction block into pulmonary vein after isolation.
نویسندگان
چکیده
منابع مشابه
Rate-Dependent Exit Conduction Block From Pulmonary Vein to Left Atrium After Entrance Block: New Implications of Pacing Rate to Confirm Bidirectional Conduction Block.
Pulmonary vein electric isolation (PVI) is an effective therapy for atrial fibrillation. Bidirectional conduction block between left atrium (LA) and the pulmonary veins (PV) is an accepted end point for PVI. We report a case of rate-dependent unidirectional exit conduction from PV to LA after PVI by large area circumferential ablation, despite entrance and exit conduction block. A 63-year-old m...
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AIMS Prior reports using pacing manoeuvres, demonstrated an up to 42% prevalence of residual pulmonary vein to left atrium (PV-LA) exit conduction after apparent LA-PV entry block. We aimed to determine in a two-centre study the prevalence of residual PV-LA exit conduction in the presence of unambiguously proven entry block and without pacing manoeuvres. METHODS AND RESULTS Of 378 patients, 1...
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SEE PAGE 653 P ulmonary vein (PV) isolation has become an established treatment for symptomatic drugrefractory atrial fibrillation (AF). However, the efficacy of AF ablation is suboptimal, with a majority of failures resulting from discontinuities in circumferential ablation sets for PV isolation. The presence of PV entrance and exit conduction block serves as a surrogate of complete circumfere...
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ورودعنوان ژورنال:
- Circulation. Arrhythmia and electrophysiology
دوره 7 4 شماره
صفحات -
تاریخ انتشار 2014