DOI: 10.11958/20251486
A case of frequent premature atrial complexes secondary to aortic compression of the right atrium
ZHANG Enyuan
HE Le
ZHANG He'nan
LU Fengmin
Abstract：A 78-year-old male patient presented with significant dilation of the non-coronary sinus of the aorta,which compressed the right atrium and formed a local low-voltage area,resulting in frequent polymorphic atrial premature beats(24-hour load 40.9%).Through dual-chamber combined activation mapping,the target point(right atrial appendage-tricuspid valve annulus junction)was locked.After radiofrequency ablation,atrial premature beats disappeared,and there was no recurrence during the follow-up period of six months.Currently,there are many causes of atrial arrhythmias related to atrial compression,but it is extremely rare for the right atrium to be involved and cause isolated frequent atrial premature beats.Treatment should be individualized,choosing either interventional or surgical methods,and emphasizing the interpretation of anatomical-electrical correlations using multimodal imaging(ultrasound,CT angiography,three-dimensional electroanatomical system).
Keywords：atrial premature complexesradiographic image interpretationcomputer-assistedaortic valve stenosis
Publication Date：2025-11-15
Online Publishing Date：2025-11-26(First online date of this platform, not the publication date of the document)
Pages：4( 1219-1222 )