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Application of ECG scatterplot in diagnosis and differential diagnosis of sinus arrhythmia |
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Abstract To discuss the correspondence between ECG manifestation of sinus arrhythmia and figures of Lorenz-RR scatterplot and t-RR scatterplot, and to make secondary differential diagnosis on atypical or easily confused ECG figures, we comparatively analyzed different characteristics of ambulatory electrocardiography(AECG) of 4 kinds of sinus arrhythmias, including nodal tachycardia, sinus bradycardia, sinus irregularity and sinus premature beats, with reverse analysis function of AECG. Non-homologous rhythm can be distinguished out by attractor of Lorenz-RR scatterplot and featured manifestations of graphic distribution of t-RR scatterplot. Every kind of sinus arrhythmia has its characteristic ECG scatterplot which helps in making correct analysis and judgment clinically if combined with ECG.
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