28例急性心肌梗塞QT离散度增加与瘁死关系分析  

The Relationship Between Increased QT Dispersion and Sudden Death in Patients with Acute Myocardial Infarction——Analysis of 28 Cases Attached

作　　者：王德全[1] 

机构地区：[1]四川省仁寿县人民医院内科,620500

出　　处：《中华临床医学卫生杂志》2005年第11期8-10,共3页China Journal of Clinical Medicine Hygiene

摘　　要：目的观察急性心肌梗塞后的QT变化情况。方法对28例急性心肌梗塞发病后72h内的逐日心电图所测QT间期离散度（QTD）进行比较。结果在急性心肌梗塞早期发生瘁死者QTD呈持续性增强，并大于非瘁死者QTD。结论急性心肌梗塞的QTD增加为急性心肌梗塞早期瘁死的重要原因之一，同时提高改善冠状动脉供血，控制梗塞延展，是防止QTD增加而致瘁死发生的有力手段之一。Objective To observe the dynamic changes of QT interval in patients with acute myocardial infarction （AMI）. Methods The QT dispersion（QTD）of electrocardiograms（ECG）recorded daily in 28 patients with in the early 72 hours after onset of AMI were analyzed. Results QTD was continuously increased in patients with incidence of sudden death during the early period of AMI, and was greater than those without sudden death. Conclusion The increasing of QTD in patients with AMI is one of the significant causes of early-onset sudden death.. To improve blood supply of coronary artery, therefore getting control of the extension of infarction is one of the powerful means to prevent the increasing of QTD which can cause early-onset sudden death in patients with AMI.

关 键 词：急性心肌梗塞 QTD 瘁死 QT离散度 

分 类 号：R542.22[医药卫生—心血管疾病]