Paul V E, Bashir Y, Murphy T, Malik M, Saumurez R, Camm A J
Department of Cardiological Sciences, St. Georges Hospital, London, United Kingdom.
Pacing Clin Electrophysiol. 1990 Dec;13(12 Pt 2):1925-9. doi: 10.1111/j.1540-8159.1990.tb06918.x.
Correlation has been described as a method of high sensitivity to distinguish ventricular arrhythmias from sinus rhythm but the specificity of this algorithm has not been assessed. Ten patients with a history of chronic ventricular tachycardia were studied. The ventricular endocardial electrogram was recorded during sinus rhythm at rest immediately following exercise and during their clinical ventricular tachycardia. Each complex recorded during these sample periods was correlated with a template constructed during sinus rhythm at rest. Although for each patient the range of correlation values obtained at rest were clearly separated from those obtained during ventricular tachycardia, in 69% of cases there was overlap of the range in sinus tachycardia and ventricular tachycardia.
相关性已被描述为一种区分室性心律失常与窦性心律的高灵敏度方法，但该算法的特异性尚未得到评估。对10例有慢性室性心动过速病史的患者进行了研究。在运动后立即静息时的窦性心律期间、临床室性心动过速期间记录心室心内膜电图。在这些采样期间记录的每个复合波都与静息时窦性心律期间构建的模板进行相关性分析。尽管对于每位患者，静息时获得的相关值范围与室性心动过速期间获得的相关值范围明显分开，但在69%的病例中，窦性心动过速和室性心动过速的范围存在重叠。
