Discussion on the value of 48 h ambulatory electrocardiogram

Abstract

Objective: The statistical number of cases was 73 times. 66 patients entered the study, including 31 males and 35 females, aged from 17 to 86 years. Firstly, the accurate big data analysis was carried out on 66 cases of ambulatory ECG, and then the corresponding time that can be compared and analyzed before and after 24 h was determined through the time (T) RR interval scatter diagram. The changes of 24 h ECG scatter diagram were observed, and the total number of heart beats and the number of premature beats were counted by the scatter diagram technique, and then compared and analyzed according to the type of arrhythmia. Results: A frequent or occasional premature beats: 52 patients (59 times), 26 males and 26 females, aged (56.1 ± 15.4) years; the effective analysis duration was (22.40 ± 1.19) H. There was a significant correlation between the number of heart beats before and after treatment (r=0.934, p=0.000). b. Persistent arrhythmia: 4 cases of persistent atrial fibrillation (referred to as atrial fibrillation), 1 case of frequent atrial and ventricular concurrent arrhythmia, 2 males and 3 females, aged (68.4 ± 9.4) years; the effective analysis duration was (22.68 ± 0.74) H. The t-RR scatter plot and Lorenz RR scatter plot of these patients had self-similarity before and after 24 h. There was no significant difference in the total heart beat number before and after 24 h[(111796 ± 16439) vs (111262 ± 16421), p=0.624], and the total heart beat number before and after 24 h was significantly correlated (r=0.991, p=0.001); the qualitative diagnosis of long interval in 3 patients with atrial fibrillation was consistent 24 hours before and after diagnosis. c. Paroxysmal arrhythmia: 9 cases, 3 cases of paroxysmal atrial flutter, 5 cases of paroxysmal atrial fibrillation, and 1 case of paroxysmal vertical separation of sinus node function. There were 3 males and 6 females. The age was (71.2 ± 12.7) years. The effective analysis duration was (22.67 ± 0.74) H. Conclusion: 24 h ambulatory ECG can meet the requirements for patients with frequent or occasional premature beats and persistent arrhythmias, while 48 h ambulatory ECG may be necessary for patients with paroxysmal arrhythmias.