[The value of 2-dimensional echocardiography in conjunction with various exercise tests for diagnosis of myocardial ischemia].

Z Gawor, J H Goch
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Abstract

In 16 persons of the control group (group I) and in 27 patients with coronary heart disease (group II) value of two-dimensional echocardiography was determined combined with exercise, transoesophageal left atrial pacing, dipyridamole and cold pressor tests in detecting myocardial ischaemia. Changes of ST-segment in the ECG, left ventricular ejection fraction and wall motion in the 11 segments were studied during the tests. Sensitivity, specificity and predictive value confirming and excluding ischaemic heart disease of the analyzed parameters were determined. The sensitivity and the specificity of exercise, left atrial pacing, dipyridamole and cold pressor tests during the analysis of ST-segment were 70%, 81%, 37%, 4% and 62%, 67%, 94%, 100%, respectively. Two-dimensional echocardiography analysis did not increase the diagnostic value of the exercise and left atrial pacing tests, whereas the diagnostic value of dipyridamole and cold pressor tests were increased.

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【二维超声心动图结合各种运动试验诊断心肌缺血的价值】
对照16例(ⅰ组)和冠心病患者27例(ⅱ组),结合运动、经食管左房起搏、双嘧达莫和冷压试验测定二维超声心动图对心肌缺血的检测价值。观察心电图st段、左室射血分数及11段壁运动的变化。确定所分析参数确认和排除缺血性心脏病的敏感性、特异性和预测值。运动、左房起搏、双嘧达莫和冷压试验在st段分析中的敏感性和特异性分别为70%、81%、37%、4%和62%、67%、94%、100%。二维超声心动图分析没有提高运动和左房起搏试验的诊断价值,而双嘧达莫和冷压试验的诊断价值有所提高。
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