Short Term Changes in ECG Waveforms as a Potential Predictor of the Onset of Atrial Fibrillation, Whether Predictable or Not?

概要

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Background: A limited number of studies have reported on a predictor of the onset of atrial fibrillation in ECG waveform changes during sinus rhythm. Objectives: The purpose of this study was to predict the onset of atrial fibrillation in ECG waveform changes during sinus rhythm. Methods and Results: We studied consecutive 336 patients who were diagnosed initial atrial fibrillation in the prevention center of our hospital from January 2004 to June 2010. In these patients whose ECG were in sinus rhythm admitted over 2 consecutive years and whose UCG findings were within normal limits, 43 patients [41 men (61.78±10.89 years) and 2 female (65±16.97 years)] were finally enrolled. We investigated the time-dependent changes in ECG waveforms (heart rate, P width in limb lead and V1, P depth in limb lead and V1, morris index, PQ interval, QRS width in V2, R amplitude in V5 and QTc length in V2 and V5) during sinus rhythm. No significant differences were observed in the time-dependent changes of all factors that were investigated. Conclusion: Short term changes in ECG waveforms during sinus rhythm were not predictable the onset of atrial fibrillation.