Abstract: Objective To investigate the value of ECG scatter plots in the rapid diagnosis of arrhythmia. Methods A retrospective analysis was performed for 200 patients who were treated in our hospital from January 2023 to July 2024, and all patients received examinations with ECG scatter plots and routine electrocardiography. The diagnostic value of ECG scatter plots and routine electrocardiography was compared. Results Among the 200 patients, 178 had a confirmed diagnosis based on comprehensive clinical assessment. Compared with routine electrocardiography, ECG scatter plots had a significantly higher accuracy rate in the diagnosis of various types of arrhythmia, and the combination of the two diagnostic methods had a significantly higher accuracy rate than each method alone (P<0.05). There was a poor consistency in the accuracy rate of routine electrocardiography in the diagnosis of arrhythmia (Kappa=0.260), while ECG scatter plots had a fairly good consistency (Kappa=0.470), and the combination of the two methods had a good consistency (Kappa=0.810). ECG scatter plots had a significantly higher diagnostic accuracy rate than routine electrocardiography, and the combination of the two methods had a significantly higher diagnostic accuracy rate than each method used alone (P<0.05). There were also significant differences in the B-line slopes of ventricular premature beats, supraventricular premature beats, and atrial fibrillation (P<0.05). Conclusion ECG scatter plots have a significantly higher accuracy rate than routine electrocardiography in the diagnosis of arrhythmia, and the combination of the two methods can further improve diagnostic efficacy, which provides a reliable basis for clinical diagnosis and treatment.

Key words: ECG scatter plots, Arrhythmia, Routine electrocardiography