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信号平均心电图对冠心病的诊断价值

Evaluation of the signal-averaged electrocardiogram for detection of coronary heart disease
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摘要 本文观察信号平均心电图(SAECG)对冠心病的诊断价值,对老年冠心病组和老年对照组的SAECG进行分析。老年冠心病组滤波后QRS波时限(TQRS)、滤波后QRS电压低于40μV的时限(LAS40)、滤波后QRS终末40ms的平均平方根电压(RMS40)分别是104.45±20.01ms、30.69±7.71ms、38.88±6.71μV,与老年对照组相比明显差异(分别为P<0.05、P<0.01、P<0.01);在非老年人群中,超声运动负荷试验阳性(EXE.P)组与对照组和超声运动负荷试验阴性(EXE.N)组的TQRS、LAS40、RMS40对比,前组较后2组也存在明显差异(分别为P<0.01、P<0.05、P<0.01)。表明SAECG作为无创伤性和安全的方法,对冠心病的诊断具有一定的临床价值。 The paper assessed the signal-averaged electrocardiogram (SAECG) for detection coronary heart disease(CHD). Analysis and compares the SAECG between the aged normal subjects and aged patients with CHD. In the aged patients with CHD, the duration of total QRS(TQRS), the duration of signals less than 40μV(LAS40) and a root mean square voltage of last 40 ms of QRS(RMS40) were 104. 45±20. 01 ms , 30. 69± 7. 71 ms and 38. 88± 6. 71 μV respectively, which were have significantly different from those in the aged nomal subjects (P less than 0. 05, 0. 01, 0. 01 respectively). The same results were observed in the group of non-aged subjects. In the group with positive exercise echocardiography(EXE. P), the TQRS, LAS40 and RMS40 were also significantly different from those of the aged normal subjects (P less than 0. 01, 0. 05 and 0. 01 respectively). Our data domonstrate that the signal-averaged electroardiogram may be a valid and safe method for evaluating coronary heart disease.
机构地区 江苏省老年医院
出处 《实用老年医学》 CAS 1995年第4期174-175,共2页 Practical Geriatrics
关键词 信号平均心电图 冠心病 诊断 Coronary heart disease Signal-averaged electrocardiogram Exercice echocardiography
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