Relationship between Morphological Changes of Ventricular Premature Beat and the Severity of Coronary Lesions
Du Jianying
Han Suhua
Li Guoping
Abstract：Objective The aim of this study was to investigate the relationship between the morphology of premature ventricular beat (PVB)which had obvious wide setback or notch (cal ed PVB ugly sign)and coronary artery disease(CAD)and its severity. Methods We enrol ed 171 subjects admitted in the Department of Cardiology as the research object,which had PVB > 100/24 h found by dynamic electrocardiogram. The influence factors of the ECG morphology of PVB such as patients with cardiomyopathy,cardiac dys-function patients etc were excluded.Subsequently,association between the PVB morphology,ST T anomaly change and the results of coronary angiography was analysed.Results The ratio of PVB ugly sign positive and ST T changes in CAD group was signifi-cantly higher than that in control group (P<0. 001). The PVB ugly sign was positively correlated with coronary lesions and the change of ST T,and the number of the ugly sign positive cases was more than ST T change cases. There was no statistical differ-ence in premature ventricular load and RF value between CAD group and normal control group(P>0.05). The ugly sign appear more in the precordial leads,the result was matched the high incidence of coronary artery lesions in the anterior descending. Conclu-sion The PVB ugly sign could be used as an tool to evaluate coronary lesions and its severity,and further improved the application value of dynamic electrocardiogram in diagnosis of CAD.
Keywords：coronary artery diseasepremature ventricular beatugly signST T changes
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 518-522 )