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运动心电图负荷试验虽是诊断冠心病常用的无创伤性检查方法,但与侵入性冠状动脉造影相比,其临床应用价值始终存在争议。本文提出的经食道心房起搏分级心向量图负荷试验(下称向量负荷),是一种新的无创伤性检查方法,目前尚未见到报道。通过对102例冠心病及正常人的对比研究,旨在初步进行方法学探讨及临床应用评价,并对比其与常规心电图负荷试验的相互关系、优点及不足。临床资料及方法一.对象: 102例受试者为心内科住院或门诊病人以及体检的健康人。其中冠心病组60例(男45例,女15例),平均年龄54岁(40～74岁),均符合1979年国际心脏病学会和协会及世界卫生组织临床命名标准化联合专业组拟定的“缺血性心脏病诊断的命名及标准”。正常对照组42例(男31例,女11例),平均年龄52岁(24～72岁),均经临床、心电图、X线和/或超声心动图检查,除外了冠心病、严重贫血、肺气肿、甲状腺疾病以及瓣膜性心脏病等。均无电
Although the exercise ECG load test is a commonly used noninvasive diagnostic method for the diagnosis of coronary heart disease, its clinical value has always been controversial compared with invasive coronary angiography. This paper presents the transesophageal atrial pacing grading cardiac vector chart load test (hereinafter referred to as vector load), is a new non-invasive test methods, has not yet been reported. Through the comparative study of 102 cases of coronary heart disease and normal subjects, the aim is to carry out a preliminary methodological study and clinical evaluation, and compared with the conventional ECG load test, the advantages and disadvantages. Clinical data and methods A. Subjects: 102 subjects were hospitalized inpatient or outpatient and physical examination of healthy people. The coronary heart disease group of 60 patients (45 males and 15 females), mean age 54 years (40-74 years old), are consistent with the 1979 International Society of Cardiology and the World Health Organization and the standardization of clinical nomenclature joint professional group developed “ Ischemic heart disease diagnosis nomenclature and standards. ” In the control group, 42 cases (31 males and 11 females) with a mean age of 52 years (range, 24-72 years) were examined by clinical, electrocardiogram, X-ray and / or echocardiography except coronary heart disease, severe anemia, Emphysema, thyroid disease and valvular heart disease. No electricity