The characteristics of a 12-lead electrocardiogram measuring premature ventricular contractions originating from the tricuspid annulus using the clock position method

Annals of noninvasive electrocardiology: the official journal of the International Society for Holter and Noninvasive Electrocardiology, Inc

article

Li-juan Qu¹  Min Guo¹  Nan Zhang¹  Meng Sun¹  Rui Wang¹ 

[1] Department of Cardiology, First hospital of Shanxi Medical University

关键词: electrocardiogram;    premature ventricular beats;    tricuspid annulus;   

DOI  :  10.1111/anec.13024

来源: Wiley

【 摘 要 】

ObjectiveThis study aimed to analyze the conventional surface electrocardiogram (ECG) characteristics of premature ventricular contractions (PVCs) originating from the tricuspid annulus and to investigate the efficacy of locating their origins according to ECG results. MethodsEight patients who underwent radiofrequency ablation in the First Hospital of Shanxi Medical University (China) were included in the study. Pace mapping (PM) was used to analyze the characteristics of the PVCs originating from the tricuspid annulus recorded via 12-lead body surface ECGs. ResultsAn R-wave was found in leads I, V5, and V6. The QRS wave was narrower when the PVCs originated from the septum and shifted in lead V3 (R-wave amplitude/S-wave amplitude in the precordial lead—1). The QRS wave was broadest when the PVCs originated from the 7 to 9 o'clock position. The augmented vector left lead showed RS, QS, or RSR-type waves with a low amplitude when the PVCs originated from the upper part of the annulus. When the PVCs originated from the lower part of the annulus, the augmented vector right lead reflected multidirectional and QS-type waves. ConclusionThe ECG-lead characteristics related to the origin of PVCs in the tricuspid annulus indicate some level of significance and can be used to formulate a specific diagnosis.

【 授权许可】

Unknown