Results of Twenty Four Hours Ambulatory Monitoring of Electrocardiogram and Exercise Stress Testing in PVC School Children Without Organic Heart Disease

Twenty four hours ambulatory monitoring of electrocardiogram and exercise stress testing were performed in 60 children who were refered to our hospital because of isolated premature ventricular contractions (PVCs) .Complex ventricular ectopy was found in 28 out of 60 PVC children. Out of 28 subjects with complex ventricular ectopies 21 had PVCs originated from the right ventricle.Frequency of PVCs per day was high in primary ventricular tachycardia and low in ventricular tachycardia with organic heart disease and there was statistical significance (p<0.01) between these two groups.There was no characteristics in coupling interval, prematurity index and vulnerability index which could specify ventricular tachycardia, couplets PVCs and isolated PVC.VT rate in exercise stress testing was higher than that in twenty four hours ambulatory monitoring of electrocardiogram (Holter recording) . Both exercise stress testing and twenty four hours monitering of electrocardiogram should be done to control VT school children.