Murakami Y, Okamoto M, Nakayama R
Division of Internal Medicine, Aichi Prefectural Owari Hospital.
Nihon Rinsho. 1995 Feb;53(2):489-95.
Atrial fibrillation (AF), which is rather a common disease has a high risk of developing systemic embolism and stroke. Accordingly it can be significant for us to predict a patient at risk for AF during sinus rhythm Recently signal averaged ECG triggered by P wave has been expected to detect atrial late potential (ALP), which is thought to coincide with fractionated ECG significantly recorded directly from atrial muscle of a patient with paroxysmal AF. Although many time-domain ALP indices have been proposed, those excepting filtered P duration remain controversial with their diagnostic criteria having not yet been established, many studies agree as to the prolongation of filtered P duration, as observed for patients with AF. Although, also recently, frequency domain method has been applied to ALP for FFT analysis with the view of detecting ALP possibly undetectable by time domain method, no results better than the above method have been obtained, and further examination is hoped for.
心房颤动（AF）是一种相当常见的疾病，具有发生全身性栓塞和中风的高风险。因此，在窦性心律期间预测有AF风险的患者对我们来说可能很重要。最近，由P波触发的信号平均心电图有望检测到心房晚电位（ALP），这被认为与直接从阵发性AF患者心房肌显著记录的碎裂心电图相吻合。尽管已经提出了许多时域ALP指标，但除了滤波后的P波持续时间外，其他指标在诊断标准尚未确立的情况下仍存在争议，许多研究对于AF患者观察到的滤波后P波持续时间延长达成了共识。尽管最近也将频域方法应用于ALP进行快速傅里叶变换（FFT）分析，以期检测时域方法可能无法检测到的ALP，但尚未获得比上述方法更好的结果，仍希望进行进一步的研究。
