Department of Neurological, Neuropsychological, Morphological and Movement Sciences, Section of Neurology, University of Verona, Verona, Italy.
Epilepsy Behav. 2011 Feb;20(2):254-6. doi: 10.1016/j.yebeh.2010.11.009. Epub 2011 Jan 26.
Intermittent rhythmic delta activity is a typical EEG pattern that was originally described by W.A. Cobb in 1945 (J Neurol Neurosurg Psychiatr 1945;8:65-78). It may be classified into three distinct forms according to the main cortical region involved on the EEG: frontal (FIRDA), temporal (TIRDA), and occipital (OIRDA) intermittent delta activity. This article is a review of the main aspects of these patterns, with a special focus on EEG features and problems that may be encountered during interpretation of these patterns. In contrast to FIRDA and OIRDA, TIRDA is highly indicative of ipsilateral pathology. OIRDA and TIRDA are highly correlated with epilepsy, whereas FIRDA is a rather nonspecific EEG pattern.
间歇性节律性 delta 活动是一种典型的脑电图模式，最初由 W.A. Cobb 于 1945 年描述（J Neurol Neurosurg Psychiatr 1945;8:65-78）。根据 EEG 涉及的主要皮质区域，它可分为三种不同形式：额（FIRDA）、颞（TIRDA）和枕（OIRDA）间歇性 delta 活动。本文综述了这些模式的主要方面，特别关注 EEG 特征和在解释这些模式时可能遇到的问题。与 FIRDA 和 OIRDA 不同，TIRDA 高度提示同侧病变。OIRDA 和 TIRDA 与癫痫高度相关，而 FIRDA 是一种相当非特异性的脑电图模式。
