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心室晚电位(VLP)的体表检测是近年来开展的一种无创性新技术,对恶性心律失常的产生有预报价值。本文分析了48例急性心肌梗塞(AMI)患者VLP的测定资料,以探讨其临床意义。 1 临床资料 1.1 检测对象 48例患者均有典型的临床症状,心电图动态变化以及心肌酶学的升高,临床确诊为AMI。 1.2 方法 采用美国ART公司EPX 1200型心室晚电位仪,窦性心律下记录VLP。VLP阳性的标准:①总QRS时限≥120ms;②QRS终末部低于40μV的时距(D_(40))≥40ms;③QRS_(40ms)电压<25μV。三项均符合者为阳性。统计数字采用卡方检验。
The detection of ventricular late potential (VLP) on the surface of the body is a new noninvasive technique developed in recent years, which has the value of predicting malignant arrhythmia. This article analyzes the 48 cases of acute myocardial infarction (AMI) in patients with VLP determination of data to explore its clinical significance. 1 clinical data 1.1 test objects 48 patients with typical clinical symptoms, ECG changes and myocardial enzymology, clinically diagnosed as AMI. 1.2 Methods The United States ART company EPX 1200 ventricular late potentiometer, sinus rhythm recorded VLP. VLP positive criteria: ① total QRS duration ≥ 120ms; ② QRS terminal less than 40μV time interval (D_ (40)) ≥ 40ms; ③ QRS_ (40ms) voltage <25μV. All three are positive. Statistics using chi-square test.