Spear J F, Moore E N
P R Health Sci J. 1985 Jun;4(2):95-9.
Our studies have shown that infarcted dogs which exhibit inducible sustained ventricular tachycardia had late potentials and could be distinguished from those with no arrhythmias by the following QRS characteristics. A QRS duration greater than 63 msec and a duration of late activity below 30 microvolts greater than 18 msec. In addition, delayed and fractionated epicardial activation in the infarcted region correlates with late potentials on the body surface. Finally, induced ventricular fibrillation in this animal model appears to have mixed causes and is a non-specific end point.
我们的研究表明，表现出可诱导的持续性室性心动过速的梗死犬存在晚期电位，并且可通过以下QRS波特征与无心律失常的犬相区分。QRS波时限大于63毫秒，晚期活动时限大于18毫秒且低于30微伏。此外，梗死区域的心外膜激动延迟和碎裂与体表的晚期电位相关。最后，在该动物模型中诱发的心室颤动似乎有多种原因，是一个非特异性终点。
