| Objective To investigate the features of cardiac function and ventricular arrhythmia in the heart failure patients with left ventricular enlargement.Methods 121 cases of heart failure patients hospitalized in our hospital from Jan 2013 to Jun 2015, with their echocardiography results of left ventricular end-diastolic diameter (LVEDd) >55 mm, were selected and divided into group A (LVEDd≤65 mm, 82 cases) and group B (LVEDd >65 mm, 39 cases). According to the NYHA grade system of cardiac function, the features of ventricular arrhythmias from 24-hour dynamic electrocardiogram between the two groups, such as Schamroth morphology of ventricular premature beats, area of origin and Lown grading, were compared. Results The cardiac function of group A was mainly in grade II and III, and it was usually in grade III and IV in group B. The incidence of pathological ventricular premature beats in group B was higher than that in group A, and most ventricular premature beats in the two groups originated from the left ventricle. If the premature beat was inferior to Lown grade III, the incidence of group A was higher than that of group B, with statistically significant difference (P<0.05); and if it was superior to Lown grade III, the incidence of group B was significantly higher than that of group A (P<0.05). Conclusion The degree of left ventricular enlargement may be associated with the grade of cardiac function. The comprehensive analysis of ventricular arrhythmias with Schamroth morphology of ventricular premature beats, area of origin and Lown grading would be helpful to distinguish their features and show strong clinical guiding significance. |
