Diagnostic value of electrocardiogram scatter plot for arrhythmia

Abstract

Objective To explore the diagnostic value of electrocardiogram (ECG) in common arrhythmias, and to provide an effective reference for clinical diagnosis of arrhythmias. Methods The clinical data of 100 arrhythmia patients in the Department of Cardiology of Rugao People's Hospital from July 2016 to June 2018 were analyzed.All the patients were examined by dynamic ECG.The t-RR scatter plot was used to diagnose arrhythmia, and the diagnosis results were compared between the dynamic ECG and ECG scatter plot.The efficacy of ECG scatter plot in the diagnosis of arrhythmia was analyzed. Results By ECG scatter plot, 22 cases of premature beat, 18 cases of ventricular premature beat, 14 cases of atrial fibrillation, 15 cases of atrial flutter, 8 cases of atrial fibrillation with ventricular early, 7 cases of atrial fibrillation with indoor differential transmission, 5 cases of atrial fibrillation combined with atrial flutter, 89 cases of correct diagnosis, and the total coincidence rate was 89.00%.The B line slope of the supraventricular premature beat point map was (0.45±0.13), which was the largest in each type of arrhythmia, and the minimum ventricular premature beat was (0.08±0.03). The difference in the slope of the supraventricular premature beat and the ventricular premature beat B line was statistically significant (F=5.031, P 0.05). The sensitivity, specificity and accuracy of ECG in the diagnosis of arrhythmia were 82.05%, 90.51%, 92.57%, respectively, and the area under the curve was 0.833 (95% CI: 0.271-0.942). Conclusion ECG scatter plot has a high application value in the diagnosis of arrhythmias, and can realize the accurate diagnosis of complex arrhythmias. Key words: Arrhythmia; ECG scatter plot; Diagnosis; Electrocardiogram; Scatter plot; ECG; Coronary heart disease; Premature contraction