Determining inferior vena cava-tricuspid isthmus block after typical atrial flutter ablation.


n typical atrial flutter, circular activation around the tricusid ring is possible because the terminal crest prevents hort-circuiting on the posterior wall, and the myocardium etween the inferior vena cava (IVC) and the lower rim of he tricuspid ring is the obligatory pathway to close the ircuit in the low right atrium (RA) (Figure 1). This IVC– ricuspid… (More)


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