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不稳定型心绞痛(UA)在胸痛发作时不出现心率加速和血压升高者一旦发生急性心肌梗塞(AMI)可视心电图ST段移位情形而出现不同的演变和预后.病例入选的标准:1.心电图变化限于胸前导联,剔除下壁导联变化;2.病史中至少有二次胸痛记录和心电图ST段的类似移位而未发展为AMI;3.胸痛发作时至少有一次心率不超过发作前的10%,而且不超过100次/分,收、舒压增高也不超过10%;4.他们在同一住院期间发生AMI.UA的诊断依据是新近有心绞痛史或心绞痛发作次数增加和时间延长,住院期间出现静息性心绞痛伴ST段抬高或压低>1mm者.AMI的诊断按照胸痛史、
Unstable angina (UA) does not appear in the onset of chest pain, heart rate accelerated and elevated blood pressure in patients with acute myocardial infarction (AMI) visual electrocardiogram ST segment shift situation and the emergence of different evolution and prognosis. Case selection criteria: 1 .Electrocardiogram changes limited to the lead of the thorax, excluding changes in the inferior leads; 2. History of at least two chest pain records and ST-segment ECG similar displacement did not develop into AMI; 3. Chest pain at least once the heart rate is not More than 10% of pre-seizures, and no more than 100 beats / min, admission, increased pressure does not exceed 10%; 4 they occur during the same hospital AMI.UA diagnosis is based on the recent history of angina or angina increases the number of attacks And prolonged, during hospitalization with resting angina with ST-segment elevation or depression> 1mm.The diagnosis of AMI in accordance with the history of chest pain,