Abstract：Objective To make differential diagnosis of long and short bigeminy resulted from bigeminy of sinus premature beats, 3∶2 Wenckebach sinoatrial block and“longitudinal” dissociation of sinus node function. Methods Twentysix patients diagnosed with bigeming of sinus arrhythmias underwent 24hour ambulatory electrocardiography examination in the department of electrocardiogram of Zhangzhou Municipal Hospital. With a combination of Lorenz scatterplot, timeRRinterval scatterplot(tRR scatterplot) and the reversal technique, the collected clinical data were analyzed and graphs were made by computer. Results To make differential diagnosis of long and short bigeminy resulted from bigeminy of sinus premature beats, 3∶2 Wenckebach sinoatrial block and “longitudinal” dissociation of sinus node function, it is not recommended to simply rely on routine ECG. A combination of Lorenz scatterplot, tRR scatterplot and the reversal technique helps to make accurate differential diagnosis of these three kinds of bigeminy. Conclusion It can effectively elevate the diagnostic accordance rate and reduce the rate of missed diagnosis to apply ECG scatterplot and the reversal technique in the differential diagnosis of bigeminy of sinus arrhythmia.
2017, Vol. 26 
