摘要
目的 :观察急性前壁心肌梗死 (AAMI)患者急性期心电图ST段抬高形态与心肌梗死面积和左心收缩功能的关系。方法 :根据入院时心电图V3 导联ST段抬高的不同形态将 6 2例首次住院的AAMI患者分为 3组 :A组 (ST段呈弓背向下抬高 ) 18例 ,B组 (ST段呈斜坡状抬高 ) 2 7例 ,C组 (ST段呈弓背向上抬高 ) 17例 ;测定3组患者血清肌酸磷酸激酶 (CPK)峰值和左室射血分数 (LVEF)。结果 :A组患者血清CPK峰值明显低于B组和C组 ,差异有统计学意义 (P值分别 <0 .0 5、<0 .0 1) ,B组和C组比较 ,CPK峰值有显著性差异 (P <0 .0 5 ) ;A组患者LVEF明显高于B组和C组 ,差异有统计学意义 (P值分别 <0 .0 5、<0 .0 1) ,B组和C组比较 ,LVEF亦有显著性差异 (P <0 .0 5 )。结论 :AAMI早期V3 导联ST段抬高的不同形态可以反映心肌缺血性损伤的严重程度 ,对预测梗死心肌范围和心脏功能有一定的价值。
Objective:To study the relation of ST segment elevation pattern in acute phase of anterior myocardial infarction (MI) with infarct size and left ventricular function.Method: The 62 patients who had a first acute anterior myocardial infarction (AAMI) were divided into 3 groups according to the shape of ST segment elevation in lead V 3 of a 12 lead electrocardiogram: group A(concave type, n=18), group B (straight type, n=27) and group C (convex type, n=17). The peak value of serum creatine phosphate kinase (CPK) and left ventricular ejection fraction (LVEF) were measured.Result: The median value of peak CPK of the 3 groups was 2 014.4 IU/L, 4 486.8 IU/L and 5 826.9 IU/L, respectively. The peak value of CPK in group A was much lower than that in group B and group C (P< 0.05 , and P< 0.01 , respectively). LVEF within 14 days in the correspondrg groups after MI was 61.2 %, 48.6 % and 38.7 %, respectively (P< 0.05 , group A versus group B, group B versus group C; P< 0.01 , group A versus group C).Conclusion: The ST segment elevation shape in lead V 3 of a 12 lead eletrocardiogram in early term of AAMI may reflect the severity of myocardial ischemic injury. The simple classification is useful for predicting myocardial infarct size and left ventricular systolic function.
出处
《临床心血管病杂志》
CAS
CSCD
北大核心
2002年第5期216-217,共2页
Journal of Clinical Cardiology
关键词
心肌梗死
心电描记术
左心室收缩功能
Myocardial infarction
Electrocardiogram
Left ventricular systolic function
