The Analysis And Comparison Of Premature Ventricular Contraction Between Coronary Heart Disease And Idiopathic

ObjectiveAll patients were divided into coronary heart disease and idiopathic ventricular premature groups according to the coronary angiography(CAG) and dynamic electrocardiography. We compare the difference in quantity and origin place and clinical characteristic ventricular premature.MethodsA total of1500patients were selected in cohort, who were in the Department of Cardiology, the Second Hospital of Tijin Medical University between January2009to January2010. All patients have been done coronary angiography. Among them,352patients were chosen who have the ventricular premature. We asked about the history of disease, physical examination and labortory examination in detail. Left ventricular end diastolic diameter(LVEDD), left ventricular systolic diameter(LVESD) and left ventricular ejection fraction(LVEF) were measured by echocardiogram. In addition,they have electrocardiography and24hour dynamic electrocardiography. Patients with any situation below were exeluded in our study:(1) immunological disease.(2)malignant tumor.(3) infectious disease.(4) history of wound and operation recently.(5)hepatic inadequency and renal inadequency.(6)other cardiomyopathy.We analysis the results by SPSS11.5statistic software.Results1The cases with coronary heart disease and ventricular premature were261. The cases with idiopathic ventricular premature were91.The group of coronary heart disease was higher in age, male incidence, high blood pressure incidence, diabetes mellitus incidence, white blood cells count, left ventricular end diastolic diameter, left ventricular end systolic diameter than idiopathic ventricular premature.But left ventricular ejection fraction was lower than idiopathic ventricular premature.Ferthermore, the difference is statisticly significant(p<0.05). There are no statistical differences on blood potassium,blood sugar and blood low density lipoprotein cholesterol between two groups(p>0.05).2About the origin of ventricular premature,the proportion of left ventricular in coronary heart disease is higher than the other group, the difference is statisticly significant(p<0.05). But in the patients of radio frequency current catheter ablation, there are no statistical differences(p>0.05).3The result of24hour dynamic electrocardiography,the quantity of ventricular premature is lower in the coronary heart disease group than the idiopathic ventricular premature group. But there are no statistical differences within the coronary heart disease(p>0.05).4In the patients of coronary heart disease according to the result of coronary angiography, the infarction related coronary(IRA) is different. When the IRA is left circumflex branch(LCX) or right coronary artery (RCA),the origin of ventricular premature is mainly right ventriclar. However, When the IRA is left anterior decending branch (LAD), the origin of ventricular premature is mainly left ventriclar.5The incidence of ventricular tachycardia in myocardial infarction group is30.8%,but the incidence of ventricular tachycardia in the idiopathic ventricular premature group is22.7%. There are no statistical differences(p>0.05).Conclusion1The origin of ventricular premature in coronary heart disease is mainly from left ventricular,but idiopathic ventricular premature is mainly from right ventricular.2The quantity of ventricular premature in patients with coronary heart disease is less than patients with idiopathic ventricular premature.3The group of coronary heart disease was higher in age, male incidence, high blood pressure incidence, diabetes mellitus incidence, white blood cells count than idiopathic ventricular premature.This is almost the same as references.4The origin of ventricular premature in myocardial infarction is related with IRA.