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1 引言心绞痛患者常规12导联心电图检查有2/3正常,极量和亚极量运动试验使心电图对冠心病的敏感性和特异性有所提高,但不适合于高龄,体弱、身残等不能进行运动试验的患者。心房起搏负荷试验诊断冠心病阳性率为72％,敏感性和特异性分别为78％和100％。且属无创检查,简单易行而安全,可在床边进行,无副反应、老弱病残者均可耐受。我科于
1 Introduction Angina patients with conventional 12-lead ECG 2/3 normal, extreme and submaximal exercise test ECG sensitivity and specificity of coronary heart disease has increased, but not for the elderly, frail, disabled Patients who can not exercise test. Atrial pacing load test diagnosis of coronary heart disease positive rate was 72%, sensitivity and specificity were 78% and 100%. And is a non-invasive examination, simple and safe, can be carried out at the bed, no side effects, the elderly and the sick can tolerate. My department at