Key result
Isthmic radiofrequency catheter ablation of typical atrial flutter was complicated by complete atrioventricular block due to acute right coronary artery occlusion, which resolved upon recanalization.
Case Report (n=1)
Acute occlusion of the right coronary artery is a rare but reversible cause of complete AV block during atrial flutter ablation.
Clinicians should recognize acute RCA occlusion as a reversible AV block cause during flutter ablation; case reports leave optimal prevention strategies open.
We report the case of a 51-year-old patient who developed a complete atrioventricular (AV) block during the isthmic radiofrequency catheter ablation of a typical atrial flutter. The cause was an acute occlusion of the segment three of the right coronary artery. His recanalization was associated with the immediate restoration of a normal AV conduction. The complication is exceptional (one of 740 consecutive atrial flutter ablations). (PACE 2010; 516-519).
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Brembilla-Perrot et al. (2009) conducted a case report in Atrial flutter (n=1). Isthmic radiofrequency catheter ablation was evaluated on Complete atrioventricular block. Isthmic radiofrequency catheter ablation of typical atrial flutter was complicated by complete atrioventricular block due to acute right coronary artery occlusion, which resolved upon recanalization.
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