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目的探讨不稳定型心绞痛的心电图变化。方法对2005年1月至2009年1月期间收入本院的70例不稳定型心绞痛患者进行回顾性分析。结果70例患者中,共70例、1250次一过性心肌缺血,其中1105次无明显症状。持续时间:持续<30min/d35例,其中1例发生严重心律失常;70例患者中,心率变异<50ms59例,心率变异>100ms12例,所有发生心脏病事件的心率变异均<50ms;心电图出现T波的异常(≥2个导联)者55例,其中,仅有T波的异常者25例;出现ST段压低者30例,30例中显著压低者22例,轻度压低者8例;单纯ST段压低者5例,ST段压低同时伴T波异常者25例。结论临床上应视为严重心绞痛发作,积极治疗,控制血压、血糖、血脂等危险因素,避免病情进一步恶化,提高对UAP发作时异常心电图假性正常化的认识,以免误诊、误治。
Objective To investigate the changes of ECG in patients with unstable angina pectoris. Methods A retrospective analysis of 70 patients with unstable angina pectoris admitted to our hospital from January 2005 to January 2009 was conducted. Results 70 patients, a total of 70 cases, 1250 cases of transient myocardial ischemia, of which 1105 times no obvious symptoms. Duration: continuous <30min / d35 cases, of which 1 case of severe arrhythmia; 70 patients, heart rate variability <50ms59cases, heart rate variability> 100ms12cases, all heart rate events heart rate variability <50ms; ECG T There were 55 cases of abnormal wave (≥2 leads), of which 25 cases had abnormal T wave only. There were 30 cases with ST depression, 22 cases with significant depression in 30 cases and 8 cases with mild depression. Simple ST segment depression in 5 cases, ST segment depression accompanied by T wave abnormalities in 25 cases. Conclusion Clinic should be regarded as severe angina pectoris, active treatment, control of blood pressure, blood glucose, blood lipids and other risk factors to avoid further deterioration of the condition, to improve the false episode of UAP pseudo-normalization awareness, so as to avoid misdiagnosis and misdiagnosis.