ANALYSIS OF PAROXYSMAL ATRIAL FIBRILLATION WITH RR-LORENZ PLOT
Aims: To explore the evidence for diagnosing the paroxysmal atrial fibrillation qualitatively by analyzing and comparing the RR-Lorenz plots of the atrial fibrillation patients.
Methods: We screened out three groups from 100900 ambulatory electrocardiogram, Group A: normal sinus rhythm group; Group B: paroxysmal atrial fibrillation group; Group C: persistent atrial fibrillation group.Each group contained 80 cases. We compared the different charactesr of the RR-Lorenz plot among the three groups and simulated the RR-Lorenz plot by the Geometer’s Sketchpad to clarify the formation mechanism of different RR-Lorenz plots.
- There were statistically significant differences in the age and gender among the three groups P<0.05.
- Each group had various features. In Group A, there was a dense figure shown baseball bat torpedo spindle or rod-shaped beyond to the 45°line, Group B also had the similar characters with Group A, but there was a fan-shaped figure near the origin of coordinates, while Group C had only a specific fan-shaped figure.
- The Geometer’S Sketchpad could simulate the different characteristics of RR-Lorenz plot.Conclusions The RR-Lorenz plot could be used to diagnose the paroxysmal atrial fibrillation quickly and qualitatively for the characteristics of dense figure beyond to the 45°line and a fan-shaped figure near the origin of coordinates.
Fig. 45.1. The simulation diagram of paroxysmal atrial by the Geometer's Sketchpad.