女性急性冠脉综合征临床特点分析

目的 分析女性ACS患者的临床特点,为进一步提高其诊治水平提供依据.方法 将1 530例ACS患者按性别分组,女性组564例,男性组966例.分析两组的临床基本资料、主要危险因素、辅助检查结果、诊治情况、冠状动脉病变特点及血运重建情况.结果 ①基本资料:女性组年龄、心功能分级2级及以上者构成比及合并高血压、糖尿病、血脂异常者构成比高于男性组,胸痛发生率、吸烟率、非ST段抬高性心肌梗死(STEMI)发生率、有心梗病史者构成比低于男性组,P均＜0.05.②主要辅助检查:女性组入院基础心率、ST段改变率、T波改变率、房性早搏发生率、房颤发生率、EF值均高于男性组,P均＜0.05.③药物使用情况:女性组氯吡格雷、肝素使用率低于男性组,钙离子拮抗剂使用率高于男性组,P均＜0.05.④有创检查、血运重建及冠脉病变特点:女性组同意接受冠脉造影检查率、血运重建率均低于男性组,P均＜0.05.女性组及男性组冠脉病变累及范围、冠状动脉数量相比P均＞0.05.结论 与男性ACS比较,女性ACS的临床特点为平均年龄高,症状多不典型,合并症发生率高；肝素及氯吡格雷使用率低,冠脉血运重建的比例低.     

老年急性冠脉综合征患者介入治疗的临床分析

目的:探讨老年急性冠脉综合征(ACS)患者接受经皮冠状动脉介入治疗(PCI)的临床价值.方法:70岁以上老年ACS患者50例,对持续性胸痛伴(或)ST段抬高心肌梗死患者(AMI 2例,UA2例)行急诊PCI;对非ST段抬高ACS患者经规范内科治疗病情平稳1周后行PCI.结果:对70支罪犯血管进行PTCA术后置入81枚支架.49例患者随访8～24个月无心绞痛发作;1例术后2个月冠脉造影显示支架内再狭窄,经支架内再支架置入术后随访5个月无心绞痛发作.结论:对老年ACS患者及时进行PCI可获得良好效果,临床安全程度高.     

冠状动脉造影正常的急性心肌梗死临床分析

目的对比观察急性心肌梗死(AMI)冠脉造影正常和异常患者的临床表现.方法同期144例AMI患者,于发病12h内行尿激酶溶栓,并于心梗后7～14d内行经皮冠状动脉造影术,梗死相关动脉(IRA)再通且无冠脉病变者为冠脉正常组,再通且有冠脉病变及PTC成功者为冠脉异常组.记录二组患者易患因素,观察ST段抬高总和及90min回落程度,比较二组住院期间心脏事件发生率,并于出院前行超声心动图检查.结果144例患者中冠脉正常组10例,冠脉异常组134例,前者较后者年龄轻,男性,吸烟等诱因多见;造影时TMI 3级多见;ST段抬高总和于90min回落明显(P＜0.05);住院期间心脏事件发生率明显降低(P＜0.05);出院前超声心动图提示左室射血分数较高(P＜0.05).结论AMI冠脉造影正常者相对年龄轻,吸烟诱因多,住院期间心功能和临床预后好.     

非ST段抬高型与ST段抬高型急性心肌梗塞冠脉造影病变的对比

目的：比较非ST段抬高型与ST段抬高型急性心肌梗塞（AMI）病人冠状动脉血管造影结果。方法：回顾分析我院接受冠脉造影的268例AMI患者的资料,患者被分为A、B两组：A组为非ST段抬高型AMI（NSTEMI）。共148例,B组为ST段抬高型AMI（STEMI）,共120例。结果：非ST段抬高型AMI组冠脉造影病变的血管数及血管狭窄程度明显高于ST段抬高型AMI组的（P〈0．01）。4年随访中NSTEMI组死亡19例（12．8％）。STEMI组死亡9例（7．5％）,NSTEMI组死亡率显著高于STEMI组（P〈0．01）。结论：非ST段抬高型AMI的病情较ST段抬高型AMI更重。     

老年急性冠脉综合征患者介入治疗的临床分析

目的：探讨老年急性冠脉综合征(ACS)患者接受经皮冠状动脉介入治疗(PCI)的临床价值。方法：70岁以上老年ACS患者50例,对持续性胸痛伴(或)ST段抬高心肌梗死患者(AMI 2例,UA2例)行急诊PCI；对非ST段抬高ACS患者经规范内科治疗病情平稳1周后行PCI。结果：对70支罪犯血管进行PTCA术后置入81枚支架。49例患者随访8～24个月无心绞痛发作；1例术后2个月冠脉造影显示支架内再狭窄,经支架内再支架置入术后随访5个月无心绞痛发作。结论：对老年ACS患者及时进行PCI可获得良好效果,临床安全程度高。     

非ST段抬高急性冠脉综合征患者的临床特点分析

非ST段抬高急性冠脉综合征（ACS）包括非ST段抬高的心肌梗死和不稳定性心绞痛，常由于动脉粥样硬化斑块破裂、血栓形成引起冠状动脉不完全阻塞所致，具有与ST段抬高ACS不同的临床发病特点及冠脉病变。本文通过回顾分析非ST段抬高ACS患者的病史特点和危险因素，结合冠状动脉造影结果，为临床诊治提供一定的参考。     

老年女性急性ST段抬高心肌梗死患者临床及冠状动脉造影特点分析

目的探讨老年女性急性ST段抬高心肌梗死患者临床及冠状动脉造影特点。方法选择经急诊PCI诊治的年龄>60岁女性急性ST段抬高心肌梗死患者90例为老年女性组;另收集同期年龄匹配的男性急性ST段抬高心肌梗死患者190例为老年男性组,对比老年女性ST段抬高心肌梗死患者的临床及冠状动脉造影特点。结果老年女性组吸烟史及糖尿病患病率明显低于老年男性组,LDL-C、高敏C反应蛋白、白细胞介素6水平明显高于老年男性组,差异有统计学意义(P<0.05,P<0.01);老年女性组平均发病年龄明显高于老年男性组,3支病变比例明显低于老年男性组,差异有统计学意义(P<0.05,P<0.01)。结论女性心肌梗死发病年龄较晚,3支病变比例低;肥胖、LDL-C升高及炎性反应是女性心肌梗死的重要危险因素。     

不同类型急性心肌梗死冠脉病变特点分析

目的 分析急性非ST段抬高心肌梗死(NSTEMI)与急性ST段抬高心肌梗死(STEMI)患者冠脉造影(CAG)特点.方法 NSTEMI患者入院后7 d～10 d,STEMI患者10 d～14 d行冠脉造影,观察两组临床资料、病变血管的分布及范围、冠脉狭窄程度、血管病变支数.结果 大于90%的严重病变NSTEMI组多于STEMI组,完全闭塞率NSTEMI组小于STEMI组,多支病变率NSTEMI组高于STEMI组,单支病变率低于STEMI组(P<0.05).结论 NSTEMI 与STEMI 冠脉造影特点各异,择期冠脉造影明确病变类型,采取积极干预有望改善预后.     

急性ST段抬高型与非ST段抬高型心肌梗死患者血清心肌肌钙蛋白T浓度对比

目的探讨急性心肌梗死(AMI)患者血清心肌肌钙蛋白T(cTnT)浓度对ST段抬高型AMI与非ST段抬高型AMI的诊断价值。方法分析2007年1月至2011年10月在该院就诊的113例AMI患者,对比发病后4 h血清cTnT浓度,并比较其中转上级医院行冠脉造影的53例AMI患者相关冠状血管完全闭塞与不完全闭塞血清cTnT浓度。结果①61例ST段抬高型AMI,cTnT浓度为(0.90±0.69)ng/ml,52例急ST段抬高型AMI,cTnT浓度为(0.65±0.50)ng/ml,两组cTnT浓度比较差异有统计学意义(P<0.01)。②31例ST段抬高型AMI冠脉造影证实相关冠状血管完全闭塞的28例患者cTnT浓度为(0.94±0.71)ng/ml,22例非ST段抬高型AMI冠脉造影证实相关冠状血管不完全闭塞的19例患者cTnT浓度为(0.69±0.55)ng/ml,两组cTnT浓度对比差异有统计学意义(P<0.001)。结论 ST段抬高型AMI患者血清cTnT浓度明显高于非ST段抬高型AMI患者血清cTnT浓度较高的AMI多见于相关的冠状血管完全闭塞。     

老年急性冠状动脉综合征患者性别分析

目的初步探讨老年急性冠状动脉综合征(ACS)患者冠状动脉病变程度以及危险因素的差异。方法选择年龄≥60岁的ACS患者462例,其中ST段抬高急性心肌梗死患者237例,非ST段抬高急性心肌梗死患者55例,不稳定性心绞痛患者170例,分析比较男性和女性患者ACS临床分型,高血压、糖尿病、高脂血症、吸烟等危险因素伴发情况,冠状动脉病变程度及各项生化指标。结果与男性比较,女性患者年龄、糖尿病、高脂血症明显升高(P0.05,P0.01);非ST段抬高急性心肌梗死、不稳定性心绞痛、2支病变、3支病变、≥2个危险因素、TC和LDL-C均明显升高,血尿酸及入院血清总胆红素明显降低(P0.01)。结论男性多表现为ST段抬高,女性多表现为非ST段抬高。男性单支病变较多,女性多支病变及合并危险因素较男性多。应激情况下男性的氧化应激激活和抗氧化能力优于女性。     

Is thrombolytic therapy effective in elderly patients?

Thrombolytic therapy (TT) is applied in patients (<75 years of age) with acute myocardial infarction (AMI) with ST-segment elevation. It is recommended for elderly patients who have percutaneous transluminal coronary angioplasty (PTCA) or bypass surgery. For PTCA and bypass surgery a cardiosurgery medical team, which can be found in large medical hospitals, has to be prepared. Patients with AMI with ST-segment elevation who are older than 75 and who do not have TT have a dubious prognosis for longevity and quality of life. The aim of this study was to propose recommendations and behavior for reperfusion with TT of the coronary arteries of elderly patients. The investigation was conducted for a period of 5 years (2000 to 2004). Investigators registered 2462 patients, 502 of whom had AMI, and 103 (54 men, 49 women) of whom were older than 75 years. Reteplase (Rapilysin, Hoffman La Roche, Switzerland) was applied to 10 patients. The general and mental state of patients as well as comorbidity were assessed. The H2- blocker Famotidine (Quamatel-Gedeon-Richter, Hungary) was used to prevent bleeding from the gastrointestinal tract. The applied TT had a positive effect on these >75-year-old patients. The oldest woman was 89 years old and the oldest man was 93. There were no complications during the treatment of these elderly patients. Aging related to serious health problems can be improved with the application of TT to elderly patients with AMI, and ST-segment elevation is an excellent reperfusion therapy. It is possible to achieve a dose reduction of the thrombolytic agent, arterial pressure no higher than 160/100 mmHg, individual risk assessment for intracranial hemorrhage, and prevention of bleeding from the gastrointestinal tract.     

Electrocardiographic differentiation of occlusion of the left circumflex versus the right coronary artery as a cause of inferior acute myocardial infarction

To determine whether the admission electrocardiogram can identify left circumflex or right coronary artery occlusion as the cause of an inferior acute myocardial infarction (AMI), findings from electrocardiography and coronary angiography performed within 12 hours of each other were retrospectively assessed in 41 consecutive patients with inferior AMI. All patients had ST-segment elevation in 1 or more inferior leads (II, III or aVF). Of the 12 patients with circumflex coronary artery occlusion, 10 (83%) had ST-segment elevation in 1 or more lateral leads (aVL, V5 or V6) without ST-segment depression in lead I. Similar electrocardiographic findings were noted in only 1 of 29 patients (4%) with right coronary occlusion (p less than 0.001). ST-segment depression in precordial leads V1-V3 was equally prevalent in both groups. Thus, the presence of both ST-segment elevation in 2 or more inferior leads and ST-segment elevation in 1 or more lateral leads with an isoelectric or elevated ST segment in lead I identified circumflex coronary occlusion with a sensitivity of 83%, specificity of 96%, positive predictive accuracy of 91% and negative predictive accuracy of 93%. When these criteria were prospectively applied to an additional cohort of 19 consecutive patients with inferior AMI (5 with left circumflex and 14 with right coronary artery occlusion), presence of left circumflex coronary artery occlusion was predicted with a sensitivity of 80%, specificity of 93%, positive predictive accuracy of 100% and negative predictive accuracy of 93%. Thus, the admission 12-lead electrocardiogram can assist in differentiating left circumflex from right coronary artery occlusion in patients with inferior AMI.     

Extent of, and factors associated with, delay to hospital presentation in patients with acute coronary disease (the GRACE registry)

Our primary study aim was to examine extent of, and factors associated with, delay in seeking medical care in a large multinational registry of patients with acute myocardial infarction (AMI) and unstable angina pectoris. A secondary goal was to examine the relation between duration of prehospital delay and receipt and timing of coronary reperfusion strategies. Investigators from 14 countries are participating in the Global Registry of Acute Coronary Events (GRACE) project. The study sample consisted of 3,693 patients with ST-segment elevation AMI, 2,935 with non-ST-segment elevation AMI, and 3,954 patients with unstable angina hospitalized between 1999 and 2001. The average and median delay times were longest in patients with non-ST-segment elevation AMI (6.1 and 3.0 hours, respectively) followed by patients with unstable angina (5.6 and 3.0 hours) and those with ST-segment elevation AMI (4.7 and 2.3 hours). Approximately 41% of patients with ST-segment elevation AMI presented to the 94 study hospitals within 2 hours of the onset of acute coronary symptoms; this compared with approximately one third of patients with non-ST-segment elevation AMI and unstable angina. Several demographic and clinical characteristics were associated with prehospital delay. In patients with ST-segment elevation AMI, duration of prehospital delay was inversely related to the receipt of thrombolytic therapy, but was inconsistently related to the use of percutaneous coronary interventions. The results of this study demonstrate that a large proportion of patients continue to exhibit prolonged delay in seeking medical care after the onset of acute coronary symptoms and remain in need of targeted educational efforts to reduce extent of delay.     

Relation of lateral ST-segment elevation pattern to myocardial salvage in patients with recanalized anterolateral acute myocardial infarction

BACKGROUND: Although anterior acute myocardial infarction (AMI) with ST-segment elevation in lateral leads is associated with a poor prognosis, the significance of the pattern of lateral ST-segment elevation has not been examined. HYPOTHESIS: The aim of the study was to examine the relation of the pattern of lateral ST-segment elevation to myocardial reperfusion and infarct size in patients with AMI. METHODS: We studied 111 patients who had a first AMI presenting with anterolateral ST-segment elevation and Thrombolysis in Myocardial Infarction (TIMI) grade 3 flow of the left anterior descending coronary artery within 6 h from symptom onset. Patients were classified into two groups according to the pattern of lateral ST-segment elevation on the admission electrocardiogram: Group 1, 42 patients with equivalent or greater ST-segment elevation in lead I than in lead aVL, and Group 2, 69 patients with lesser ST-segment elevation in lead I in than in lead aVL. Left ventricular ejection fraction (LVEF) was measured by predischarge left ventriculography. RESULTS: There were no differences between the two groups in age, gender, time from onset to recanalization, culprit lesion, or collateral development. Group 1 patients had a higher probability of impaired myocardial reperfusion as indicated by a myocardial blush grade of 0 or 1 after recanalization, a higher peak creatine kinase level, and a lower LVEF than Group 2 patients (p = 0.0001, respectively). CONCLUSIONS: We conclude that equivalent or greater ST-segment elevation in lead I than in lead aVL is associated with impaired myocardial reperfusion and less myocardial salvage in patients with recanalized AMI who present with anterolateral ST-segment elevation on the admission electrocardiogram.     

Correlation between electrocardiographic subtypes of anterior myocardial infarction and regional abnormalities of wall motion

BACKGROUND: Examination of the electrocardiogram is the most widely used means for diagnosis and early stratification of risk of acute myocardial infarction (AMI). The classical classification of the subtypes of anterior AMI is based on results of studies comparing the electrocardiograms recorded at various stages, mostly in the subacute or chronic stage of AMI, with autopsy findings. Reports regarding the correlation between electrocardiographic findings in the acute phase and regional abnormality of wall motion (AWM) detected by echocardiographic evaluation are sparse. OBJECTIVE: To investigate the relationship between the electrocardiographic and two-dimensional echocardiographic findings regarding patients with their first anterior AMI. DESIGN AND METHODS: We studied 58 patients, 44 men and 14 women of mean age 61.5 +/- 14.6 years, with their first anterior AMI who had undergone two-dimensional echocardiographic evaluation within 48 h of admission. Deviation of ST-segment trace from baseline was measured manually 0.06 s after the J point for all leads on the admission electrocardiogram. ST-segment elevation in the various leads was correlated to the incidence of regional AWM detected by echocardiography. RESULTS: ST-segment elevations > or = 0.1 mV in V1 leads were found for 21 (36.2%) patients. Basal anterior, basal anteroseptal, and basal septal AWM were seen more often for patients with than they were for patients without ST-segment elevation in V1 (57 versus 16%, P=0.003; 43 versus 13.5%, P=0.03; 43 versus 11%, P=0.01 respectively). In contrast to ST-segment elevation in lead V1, the only statistically significant difference in prevalence in the presence of regional AWM between patients with (n = 48) and without (n = 10) ST-segment elevation > or = 0.2 mV in lead V2 was in the inferoapical region (87.5 versus 40%; P=0.003). ST-segment elevation > or = 0.1 mV in leads aVL and V5 was found for 11 (19%) and 23 (40%) patients, respectively. There was no correlation between either lateral or apical regional AWM and the presence of ST-segment elevation in the anterolateral leads except for mid-lateral AWM, which was more often detected for patients with than it was for patients without ST-segment elevation in aVL leads (36.3 versus 6.4%, P=0.026). CONCLUSIONS: ST-segment elevation in lead V1 during the acute phase of anterior AMI is associated with a high incidence of regional AWM in the basal anterior, anteroseptal, and anterior regions, whereas ST-segment elevation in lead V2 is more often associated with AWM in the inferoapical region. ST-segment elevation in aVL leads is related to mid-lateral regional AWM.     

Diagnosis of acute myocardial infarction in angiographically documented occluded infarct vessel : limitations of ST-segment elevation in standard and extended ECG leads.

STUDY OBJECTIVES: The majority of thrombolysis studies require defined ST-segment elevations as an inclusion criterion for the diagnosis of acute myocardial infarction (AMI). However, depending on the occluded infarct vessel and the criteria applied, the ECG diagnosis of AMI can be difficult to establish. Accordingly, this study was performed to evaluate the sensitivity of ST-segment elevation of standard and extended ECG leads in a cohort of patients with angiographically confirmed diagnosis of AMI. PATIENTS AND METHODS: In 418 patients (mean +/- SD age, 60 +/- 13 years) with AMI (pain onset, 4.8 +/- 3.0 h), coronary angiography with percutaneous transluminal coronary angioplasty/stenting of the culprit lesion was performed. The diagnosis of AMI was confirmed by emergency coronary angiography and laboratory analyses. ST-segment elevation (in two contiguous leads) of 1 mm in standard lead I through aVF and ST-segment elevations of 2 mm (or 1 mm, corresponding values presented in parentheses) in V(1) through V(6) were considered significant. In a subset of 102 AMI patients, additional right precordial leads V(3)R through V(6)R for evaluation of right ventricular infarction and additional chest leads V(7) through V(9) for evaluation of posterior infarction were recorded. ST-segment elevations of 1 mm in the right precordial leads and 1 mm or 0.5 mm in the posterior leads were considered significant. RESULTS: Standard leads I through V(6) showed ST-segment elevation in 85% (96%) of patients with left anterior descending artery occlusion, in 46% (61%) of patients with left circumflex coronary artery (CX) occlusion, and in 85% (90%) of patients with right coronary artery occlusion. On consideration of additional ECG tracings in the subgroup of 102 patients (V(3)R through V(6)R and V(7) through V(9)), the respective numbers increased by 2 to 8% depending on different criteria for ST-segment elevation; in patients with CX occlusion, the increase amounted to 6 to 14%. There was a trend toward an extended infarct size (maximum creatine kinase [CK] values) with concomitant ST-segment elevation in additional ECG leads as assessed by maximum CK levels. CONCLUSIONS: The sensitivity of the ECG diagnosis of AMI is only marginally increased by extended precordial chest leads. There is a trend toward an extended infarct size in those patients with concomitant ST-segment elevation in additional ECG leads.     

Gender significance of ST-segment deviation detected by ambulatory (Holter) monitoring

OBJECTIVE: To evaluate the gender influence in diagnostic and prognostic value of Holter-detected ST-segment deviation. METHODS: Two-hundred seventy-seven consecutive patients (196 men) who underwent coronary angiography for evaluation of chest pain were studied with 24-h Holter monitoring within 72 h of coronary angiography, and were followed up for 65+/-21 months. RESULTS: Men had a higher prevalence of coronary artery disease (169 of 196, 86%) compared to that of women (54 of 81, 67%), p<0.00025. Thirty-three (17%) men and 15 (19%) women had ST-segment deviation during 24-h recording. The sensitivity, specificity and positive predictive values of ST-segment deviation (elevation, depression, or both) for the detection of significant coronary artery disease were similar in men and women. The negative predictive values were significantly higher in women than men for ST-segment deviation (36% vs. 15%, p<0.001), ST-segment elevation (35% vs. 14%, p<0.001), and ST-segment depression (34% vs. 15%, p<0.001). Similarly, the diagnostic accuracies were significantly higher in women than men for ST-segment deviation (44% vs. 29%, p<0.025), ST-segment elevation (38% vs. 19%, p<0.001), and ST-segment depression (40% vs. 24%, p<0.025). There was no significant difference in composite end-point of events (mortality, nonfatal myocardial infarction, unstable angina, and coronary revascularization) in men versus women with ST-segment deviation (elevation, depression, or both). CONCLUSION: Holter-detected ST-segment deviation has a higher negative predictive value and diagnostic accuracy for detection of significant coronary artery disease in women than in men, although the prognostic values are not significantly different between men and women.     

非心肌梗死冠心病患者运动致ST段抬高的临床意义

目的 研究运动致ST段抬高在非心肌梗死患者中发生率及其临床意义。方法 2004年6月至2006年6月共有4601例患者接受了运动平板试验,其中有15例非心肌梗死患者出现ST段抬高,对这15例患者的临床特点与冠状动脉造影结果进行分析。结果 15例（3．2‰）运动致ST段抬高患者中,男性13例,女性2例,年龄40-75岁。单支病变者6例（40％）,2支病变者6例（40％）,3支病变者3例（20％）;12例（80％）累及前降支,1例（6．6％）累及左主干,7例累及右冠状动脉,在累及前降支及左主干13例患者中有8例为重度狭窄病变（狭窄程度为90％-100％）,所有ST段抬高的导联均与病变血管的供血部位一致。结论 运动致ST段抬高在非心肌梗死患者中发生率非常低,多因冠状动脉有严重的固定性狭窄,特别是前降支,可根据出现ST段抬高的导联判断缺血心肌的部位。     

Clinical utility of ST-segment depression in lead AVR in acute myocardial infarction

The present study evaluated the prevalence and significance of ST-segment depression (STD) in lead aVR on the admission 12-lead electrocardiogram in 307 consecutive patients with an acute myocardial infarction (AMI) with ST-segment elevation. STD in aVR was present in a significantly higher proportion of patients with inferior/posterior AMIs. Within inferior/posterior AMIs those with STD in aVR had significantly more concomitant STD in V(1), V(2), V(3) and more concomitant STesegment elevation in V(5), V(6) and right precordial leads. These data suggests that STD in aVR may point to a coronary artery with a large area of supply as the culprit vessel responsible for the AMI.     

老年急性心肌梗死患者溶栓后补救性冠状动脉介入治疗的临床研究

目的　评价老年急性ST段抬高性心肌梗死患者,在急诊静脉溶栓治疗后,对于梗死相关冠状动脉未能有效开通的病例,进行补救性冠状动脉介入治疗。方法　≥70岁急性ST段抬高的心肌梗死(ST segmentelevationacutemyocardialinfarction ,STE AMI)患者5 2例(≥70岁组) ,在急诊静脉溶栓治疗后若判定梗死相关动脉未能有效开通,则即行冠状动脉造影,若造影显示梗死相关动脉血流为非TIMI 3级灌注、同时患者仍有较明显胸痛和(或)梗死对应心电图导联ST段抬高,并除外急诊冠状动脉介入治疗的禁忌证,即进行梗死相关冠状动脉的补救性介入治疗(包括球囊扩张、支架置入)。同时与<70岁的6 7例(<70岁组)STE AMI患者进行比较。结果　与<70岁组患者比较,≥70岁组的STE AMI患者在进行了静脉溶栓治疗后行急诊冠状动脉造影显示:溶栓有效开通比例低,同时在心肌梗死急性期的死亡绝对数较大;但梗死相关动脉经皮冠状动脉介入治疗(PCI)成功比例两组无差异,同时,在≥70岁组,接受了静脉溶栓治疗后,再行PCI的严重出血并发症(包括颅内出血、消化道大出血等)并未见增加。结论　≥70岁组患者静脉溶栓有效开通比例较低,进行补救性PCI成功比例与<70岁组的STE AMI患者相同,在严密监测出、凝血参数情况下出现严重出血并发症低。