Evaluation of Atrial Electromechanical Delay and Left Atrial Phasic Function in Individuals with Electrocardiographic Early Repolarization Pattern

• Published in: Acta Cardiologica Sinica Vol. 38; no. 6; pp. 714 - 722
• Main Authors: Murat Akcay, Ufuk Yildirim
• Format: Journal Article
• Language: Chinese
• Published: 台灣 中華民國心臟學會 01-11-2022
• Subjects: Atrial electromechanical delay; Early repolarization pattern; Left atrial phasic function; MEDLINE; SCIE; Scopus
• ISSN: 1011-6842

Background: Atrial electromechanical delay (EMD) and left atrial (LA) phasic function have been demonstrated to be predictors for the development of atrial fibrillation (AF). In the present study, we aimed to evaluate atrial EMD and LA phasic function in individuals with electrocardiographic early repolarization pattern (ERP). ＜br＞
Methods: Eighty consecutive individuals with ERP and 40 age- and gender-matched control subjects without ERP were compared in this cross-sectional study. Atrial electromechanical coupling (Pa') was measured from lateral mitral annulus (Pa'_(lateral)), septal mitral annulus (Pa'_(septal)), and lateral tricuspid annulus (Pa'_(tricuspid)) using tissue Doppler echocardiography to calculate intra- and inter-atrial EMD. LA maximal volume, LA minimal volume, and LA volume before atrial contraction were calculated using the biplane area-length method to assess LA phasic function. ＜br＞
Results: LA diameter, LA volume index, Pa'_(lateral), Pa'_(septal), Pa'_(tricuspid) electrical activity an