Right phrenic injury after radiofrequency catheter ablation of atrial tachycardia at crista terminalis

摘要

＜正＞ A 62-year-old woman with frequent occurrence of symptomatic atrial tachycardia with a foci located at the root of the uppercrista terminalis was found to have right diaphragm paresis after receiving a total of 8 radiofrequency energy deliveries（40-60 W, 50-60℃） and a total duration of 540 seconds of ablation therapy （7Fr 8 mm deflectable ablation catheter）. Theright diaphragm paresis remained resolved up to 14 months after the procedure as confirmed by repeated chest X-rays.