ACS患者PCI术后动态心电图微伏级T波电交替的变化研究

Study on ACS after PCI in Patients with Dynamic Electrocardiogram Microvolt T Wave Alternans Change

目的:探讨急性冠状动脉综合征(ACS)患者经皮冠状动脉介入治疗(PCI)手术治疗前后动态心电图微伏级T波电交替(MTWA)的变化情况和研究价值。方法:ACS患者31例进行分组[A组,不稳定型心绞痛(UA)20例;B组,急性ST段抬高型心肌梗死(STEMI)11例]对照研究,将冠状动脉造影正常的患者31例设为对照组(C组),通过对3组患者进行24h的动态心电图检查,观察和对比3组患者的MTWA的变化情况。结果:MTWA的比较:A组、B组术后及C组具有明显差异(P<0.05),A组治疗前后不具有明显差异(P>0.05);B组治疗前后具有明显差异(P<0.05)。结论:ACS患者的危险分层可通过应用动态心电图检测MTWA的方式进行。TWAMAX对STEMI患者手术前后的监测结果具有明显的不稳定性。

Objective: To explore the acute coronary syndrome (ACS) in patients with percutaneous coronary artery interventionaltherapy (PCI) before and after surgical treatment of dynamic electrocardiogram of microvolt T wave electric alternating(MTWA) changesand research value. Methods: Patients with ACS 31 cases of group [group A, unstable angina pectoris (UA) in 20 cases; group B, controlstudy of 11 patients with acute ST segment elevation myocardial infarction (STEMI)], and normal coronary angiography patients, 31 casesof control group (Group C) by of 3 groups of patients 24 h dynamic electrocardiogram, 3 groups of patients were observed and comparedthe MTWA changes. Results: Compared with MTWA group, group A, groupB and group C were significantly different (P<0.05), groupA before and after treatment was not significantly different (P>0.05); group B before and after treatment with significant difference (P<0.05). Conclusion: The risk stratification of ACS patients can be carried out by using dynamic electrocardiogram detection MTWA.TWAMAX in STEMI patients before and after the operation of the monitoring results have obvious instability.