急性下壁心肌梗死胸前導(dǎo)聯(lián)心電圖變化與冠狀動脈造影結(jié)果的對比研究

摘要： 目的探討胸前導(dǎo)聯(lián)心電圖變化在急性下壁心肌梗死患者診治過程中的臨床價值。方法選擇急性下壁心肌梗死患者80例,依據(jù)胸前導(dǎo)聯(lián)ST段壓低幅度和持續(xù)時間分為4組,所有患者均在發(fā)病7～10d內(nèi)完成冠狀動脈造影,統(tǒng)計各組患者不同血管病變例數(shù)并進行統(tǒng)計學(xué)分析。結(jié)果胸前導(dǎo)聯(lián)ST段壓低持續(xù)時間不足72h與持續(xù)時間超過72h患者造影結(jié)果對比和胸前導(dǎo)聯(lián)ST段壓低<2mm與≥2mm患者造影結(jié)果對比,右冠狀動脈病變及左回旋支病變例數(shù)差異無統(tǒng)計學(xué)意義(P>0.05),右冠狀動脈或左回旋支合并左前降支病變例數(shù)差異有統(tǒng)計學(xué)意義(P<0.05)。結(jié)論下壁心肌梗死患者若胸前導(dǎo)聯(lián)ST段壓低幅度較大,且持續(xù)時間較長,則右冠狀動脈或左回旋支合并左前降支病變可能性大。
Objective To research the value of the precordial leads of ECG for the diagnosis of acute inferior myocardial infarction. Methods Eighty patients were recruited and divided into 4 groups by the amplitude of ST depression and the lasting time. Coronary arteriography were performed for all of the patients in 7 to 10 days. The data of artery abnormal were collected and analyzed. Results The comparison of angiography between patients whose ST depression lasting time were less than 72h and those no less than 72h,and between patients whose ST depression were less than 2mm and those no less than 2 mm indicated that there is no statistically significant difference in terms of cases that only right coronary artery or left circumflex injured (P >0. 05) , but there is statistically significant difference in terms of cases that right coronary artery or combined with left circumflex injured (P < 0. 05). Conclusion For those patients whose ST depression on precordial leads have a larger amplitude or long lasting time, the left anterior descending are more likely to be abnormal.