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目的:比较ST段抬高性和非ST段抬高性急性心肌梗死患者的冠状动脉病变特点。方法:选取100例在我院接受24h动态心电图和冠状动脉造影检查的急性心肌梗死患者,根据心电图结果分为观察组和对照组各50例。对照组为ST段抬高性心肌梗死(STEMI)患者,观察组为非ST段抬高性心肌梗死(NSTEMI)患者,比较两组患者冠状动脉病变的差异。结果:对照组LAD(左前降支)闭塞血管比例(52.00%)显著高于观察组(18.00%),差异具有统计学意义(P<0.05)。对照组LCX(回旋支)闭塞血管比例(8.00%)显著低于观察组(50.00%),差异具有统计学意义(P<0.05)。对照组RCA(右冠脉主干)闭塞血管比例(40.00%)和观察组(30.00%)比较,差异无统计学意义(P>0.05)。对照组单支病变比例(46.00%)明显高于观察组(12.00%),对照组三支病变比例(20.00%)明显低于观察组(48.00%)比较,差异均具有统计学意义(P<0.05)。对照组二支及正常血管比例与观察组比较,差异均无统计学意义(P>0.05)。对照组罪犯血管狭窄程度在76%-90%、91%-99%及完全闭塞的比例与观察组比较差异均具有统计学意义(P<0.05)。罪犯血管狭窄程度在<50%及50%-75%时,两组差异无统计学意义(P>0.05)。两组并发症发生情况比较,差异无统计学意义(P>0.05)。结论:1NSTEMI罪犯血管闭塞以LCX多见,STEMI罪犯血管闭塞以LAD多见;2NSTEMI以三支血管病变较多见,STEMI以单支病变较多见。
Objective: To compare the characteristics of coronary lesions in patients with ST segment elevation and non-ST segment elevation acute myocardial infarction. Methods: A total of 100 patients with acute myocardial infarction who underwent 24 h ambulatory electrocardiogram and coronary angiography in our hospital were selected and divided into observation group (50 cases) and control group (50 cases) according to the result of electrocardiogram. The control group was STEMI patients. The observation group was non-ST-segment elevation myocardial infarction (NSTEMI). The difference of coronary artery lesions between the two groups was compared. Results: The ratio of LAD (52.00%) in the control group was significantly higher than that in the observation group (18.00%), the difference was statistically significant (P <0.05). In the control group, the proportion of LCX occlusion vessel (8.00%) was significantly lower than that of the observation group (50.00%), the difference was statistically significant (P <0.05). There was no significant difference in RCA occlusion volume (40.00%) between the control group and the observation group (30.00%) (P> 0.05). The proportion of single lesion in the control group (46.00%) was significantly higher than that in the observation group (12.00%), and the proportion of three lesions in the control group (20.00%) was significantly lower than that in the observation group (48.00%) (P < 0.05). There was no significant difference between the two branches and normal vessels in the control group and the observation group (P> 0.05). The percentage of vascular stenosis of the control group was 76% -90%, 91% -99% and complete occlusion were statistically significant compared with the observation group (P <0.05). There was no significant difference between the two groups (P> 0.05) when the degree of vascular stenosis was less than 50% and 50% -75%. There was no significant difference between the two groups in complication (P> 0.05). CONCLUSIONS: 1NSTEMI criminals are more commonly seen with LCX, while STEMI criminals with LAD are more common. 2NSTEMI is more common with 3-vessel disease, and STEMI with single-vessel disease is more common.