| Objective Acute myocardial infarction(AMI) is because of heart coronary artery atheromatous plaque formation, causing acute narrowed or blocked blood vessels,which in turn leads to myocardial severe blood supply to reduce and tissue damage.Anterior descending of acute occlusion caused by acute anterior wall myocardial infarction abruptly and dangerous process, high mortality rate, the prognosis is very poor, is a sign of myocardial infarction, especially serious in type.The article collects in patients with acute anterior wall myocardial infarction surface standard 12-lead electrocardiogram and coronary angiography imaging examination, ECG changes of acute anterior wall myocardial infarction contact before descending branch blocked parts of the study.For clinical doctors to early through simple and quick ecg examination, assessment in advance cause acute anterior wall myocardial infarction, blood vessels, and lesion location.Methods Choose from 2009 to 2014 in liaoning province people’s hospital cardiac medical acute anterior wall myocardial infarction patients, all patients were performed coronary angiography examination, total of 78 cases of male patients, 47 patients(60.25% of total number); Women with 31 cases(39.74%). Age is 32-89. Each patient area before the heart attack symptoms 24 h adept surface standard 12-lead ECG examination, all selected patients underwent emergency or elective coronary artery the CAG.For all of the patient’s body surface electrocardiogram(ECG) were analyzed retrospectively, reference and exclusion criteria, according to the lead V1 and V3 ST segment service level, I, the lead av L ST segment service situation, II, III,reduced lead av F situation, will be following groups: 78 patients were retrospectively analyzed all the selected patients ECG, consult exclusion criteria and inclusion criteria,according to the ECG, II, III, the extent of av F lead down, chest lead ST segment service level, degree of lead V1 and V3 ST segment service will be the following groups: 78 cases of patients with a,(1) according to the ECG lead V1 and V3 degree of ST segment lift divided the patients into two groups: lead V1 and V3 st-elevation acuity 0.3 mm(group I), lead V1 and V3 ST segment service < 0.3 mm(group II).(2)According to the I, lead av L on ECG ST segment lift is divided the patients into two groups: I, lead av L ST segment lift acuity 0.1 mm(group I), I, lead av L ST segment service < 0.1 mm(group II).(3)According to the ECG, II, III, of av F lead down the degree to which divided the patients into two groups: II, III, low lead av F ST segment acuity 0.1 mm(group I), II, III, low lead av F ST segment < 0.1 mm(group II). Second, according to the I, lead av L anterior descending degree of ST segment lift 47 patients recently blocked patients were divided into two groups: I, lead av L ST segment service acuity 0.15 mm(group I), I, lead av L ST segment lift < 0.15mm(group II).Records of the patient’s general condition, including gender, age, according to the patients with coronary artery of the CAG report record the anterior descending of the lesion. Contact the CAG results corresponding to the comparison of ECG. In this study the data of measurement data with mean + /- standard deviation(+ /- s) said,the independent sample t test to compare between the two groups of measuring data,USES the statistics of the chi-square test to compare count data between different groups, P < 0.05, said the results have statistical significance. All data application SPSS17.0 software to deal with.Results The anterior descending, recently, in the middle, the relationship between far end plug and electrocardiogram(ecg) changes(1) lead V1 and V3 lower degree of LAD occlusion site had statistical significance.Lead V1 and V3 ST segment lift acuity 0.3 mm group had a significantly higher LAD in block number lead V1 and V3 ST segment lift < 0.3 mm group(P < 0.05). Lead V1 and V3 st-elevation < 0.3 mm group LAD middle block is significantly higher than the number of lead V1 and V3 ST segment lift acuity 0.3 mm group(P < 0.05).(2) patients lead av L ST segment service situation of LAD occlusion site had statistical significance. I, lead av L ST segment lift acuity 0.1 mm group had a significantly higher LAD in block number I, lead av L ST segment lift < 0.1 mm group(p < 0.05). I, lead av L ST segment LAD occlusion of the middle service < 0.1 mm group is significantly higher than the number of I, lead av L ST segment lift acuity 0.1mm group(p < 0.05).(3) II, III, the extent of av F lead down to the LAD occlusion site had statistical significance. II, III, of av F lead ST segment decreased acuity 0.1 mm group of the anterior descending coronary artery angiography proximal 100% blockage is significantly higher than the number of II, III, of av F lead ST segment < 0.1 mm lower group(P < 0.05); II, III, of av F lead ST segment < 0.1 mm lower group of coronary angiography LAD middle block number significantly higher than the 100%of II, III, av F lead ST segment acuity 0.1 mm lower group(P < 0.05)Second, the first diagonal branch blockage and ECG changes in the relationship I,lead av L ST segment on the electrocardiogram(ecg) for service level and the first diagonal branch 47 cases of acute anterior wall myocardial infarction, coronary angiography shows occlusion of the proximal LAD of patients according to the I, lead av L on ecg ST segment service level divided the patients into two groups: I, lead av L ST segment lift acuity 0.15 mm(group I), I, lead av L ST segment service between <0.15 mm(group II).I, lead av L ST segment lift acuity 0.15 mm(group I), I, lead av L ST segment lift <0.15 mm(group II), two groups, compared to each other LAD in out-of-the-way parts of the results such as table 4. I, lead av L ST segment lift the anterior descending acuity 0.15 mm group is significantly higher than the number of first diagonal branch proximal occlusion I, lead av L ST segment service < 0.15 mm group.Conclusion: I n patients with acute anterior wall myocardial infarction,electrocardiogram(ecg) on lead V1 and V3 st-elevation acuity 0.3 mm, I, lead av L ST segment down acuity 0.1 mm, II, III, lead av F patients with ST segment a drop of 0.1mm or anterior descending lesion is more than the recent; Lead electrocardiogram(ecg) in V1 and V3 st-elevation < 0.3 mm, I and the decrease of the lead av L ST segment < 0.1 mm, II, III, low lead av F ST segment < 0.1 mm before descending branch lesion in patients with anterior descending over the middle. In the anterior descending anterior wall acute myocardial infarction patients with recently blocked, I,lead av L ST segment lift acuity 0.15 mm(group I) before the first diagonal branch of descending branch proximal occlusion is significantly higher than the number of I,lead av L ST segment service < 0.15 mm(group II). |
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