Right Atrial Angiographic Evaluation of the Posterior Isthmus
Why the study?
Does right atrial angiography before flutter ablation reveal anatomic variations that impact the ablation approach and success?
Population
100 consecutive patients undergoing flutter ablation procedures
Design
Cohort
Follow-up
13+/-11 months
Authors
Discussion
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Implication
Angiography-detected isthmus variants were associated with more RF applications; leaves open whether routine pre-procedural imaging improves flutter ablation outcomes.
Structured PICO
Does right atrial angiography before flutter ablation reveal anatomic variations that impact the ablation approach and success?
P
Population
100 consecutive patients undergoing flutter ablation procedures
I
Intervention
Biplane right atrial (RA) angiography performed before ablation to guide catheter contact with the isthmus
O
Outcome
Anatomic conformation of the posterior isthmus and ablation success (bidirectional conduction block and number of radiofrequency applications)surrogate
Right atrial angiography prior to flutter ablation reveals highly variable isthmus anatomy, such as Eustachian valves or concave isthmuses, which are associated with a need for more radiofrequency applications.
Cite This Study
Heidbüchel et al. (2000) studied this question.