体温升高对急性ST段抬高型心肌梗死患者直接PCI术后的影响

目的观察急性ST段抬高型心肌梗死患者直接经皮冠状动脉介入治疗术后体温升高对其近期预后的不良影响。方法回顾性分析282例直接经皮冠状动脉介入治疗的急性ST段抬高型心肌梗死患者,按照直接经皮冠状动脉介入治疗术后患者住院期间所测体温的峰值分为两组:体温37.5℃(体温升高组)和体温≤37.5℃(对照组)。比较两组6个月主要心脏不良事件的发生率(心源性死亡、非致死性心肌梗死及再血管化重建)。结果体温升高组占总人数37.6%(106/282)。白细胞计数、高敏C反应蛋白及肌钙蛋白I水平体温升高组均高于对照组(P0.05);既往心肌梗死发生频率及左心室射血分数体温升高组均低于对照组(P0.05);在高血压、高脂血症、糖尿病、血管造影及介入治疗等方面,两组差异无统计学意义(P0.05)。6个月主要心脏不良事件体温升高组患者明显高于对照组(P0.05)。结论体温升高是急性ST段抬高型心肌梗死患者直接经皮冠状动脉介入治疗术后近期预后的不良预测因子。     

络脉舒通对急性心肌梗死急诊经皮冠状动脉介入治疗患者再灌注损伤的作用

目的探讨络脉疏通颗粒对急性心肌梗死急诊经皮冠状动脉介入治疗患者再灌注心肌损伤的保护机制。方法选择ST段抬高的并成功实施经皮冠状动脉介入治疗的急性心肌梗死住院患者。随机分成处理组和对照组,对照组给予常规药物治疗,处理组给予常规药物 络脉疏通治疗,疗程2周。分别于发病后不同时间抽取静脉血,测定白细胞介素6mRNA及高敏C反应蛋白的水平。同时检测二维超声心动图,并观测两组患者经皮冠状动脉介入治疗术后心律失常发生率和心电图ST段回落率。结果两组患者经皮冠状动脉介入治疗术后24h白细胞介素6mRNA及高敏C反应蛋白含量均升高,两组间无差别;心律失常及心电图ST段回落率两组间无差别。而术后7天白细胞介素6mRNA及高敏C反应蛋白含量均较术前明显降低(P<0.01),处理组与对照组比较其含量也降低(P<0.05),心律失常及心电图ST段回落率明显降低(P<0.05),14天后左心室射血分数较对照组明显改善(P<0.05)。结论络脉舒通颗粒可抗心肌缺血再灌注损伤,改善经皮冠状动脉介入治疗术后心肌组织再灌注,降低有关炎症因子表达,改善心功能。     

急性冠状动脉综合征患者血浆蛋白氧化产物升高的机制及意义

目的通过检测急性冠状动脉综合征患者体内晚期蛋白氧化产物、丙二醛的水平来探讨氧化应激损伤与冠状动脉粥样硬化斑块发生发展的关系。方法入选73例急性心肌梗死(46例择期和27例急诊冠状动脉介入治疗)、49例不稳定型心绞痛及21例非冠心病患者,均经造影证实。于入院即刻2、4 h和48 h采集外周静脉血标本。紫外荧光光度法测定晚期蛋白氧化产物浓度;硫代巴比妥酸光度法测定丙二醛浓度。结果晚期蛋白氧化产物浓度在急性心肌梗死择期冠状动脉介入治疗组、不稳定型心绞痛组较非冠心病组明显升高(P<0.05);急性心肌梗死择期冠状动脉介入治疗组各时间点晚期蛋白氧化产物浓度较急性心肌梗死急诊冠状动脉介入治疗组高(P<0.01);急性心肌梗死择期冠状动脉介入治疗组与不稳定型心绞痛组差异无统计学意义(P>0.05);急性心肌梗死择期冠状动脉介入治疗组晚期蛋白氧化产物浓度与低密度脂蛋白呈正相关[r=0.370(入院即刻)、r=0.422(入院24 h)、r=0.559(入院48 h)]。与非冠心病组对应各时间点丙二醛浓度比较,急性心肌梗死择期冠状动脉介入治疗组、急诊冠状动脉介入治疗组升高(P<0.05),而与不稳定型心绞痛组比较无统计学差异。结论急性冠状动脉综合征患者血浆中晚期蛋白氧化产物、丙二醛浓度显著升高。氧化应激可能是急性冠状动脉综合征发生发展过程中的重要环节,晚期蛋白氧化产物、丙二醛是反映体内氧化应激水平较好的血清学指标。     

脑钠肽、和肽素和高敏C反应蛋白与急性冠状动脉综合征的相关性

目的 探讨急性冠状动脉综合征患者冠状动脉粥样硬化程度与脑钠肽、和肽素和高敏C反应蛋白水平之间的相关性.方法 检测30例急性心肌梗死(急性心肌梗死组)患者,38例不稳定型心绞痛(不稳定型心绞痛组)患者和20例健康对照组血浆脑钠肽、和肽素和血清高敏C反应蛋白水平;比较冠状动脉病变支数、左主干病变、冠状动脉Gensini评分与脑钠肽、和肽素和高敏C反应蛋白水平的相关性.结果 急性心肌梗死组、不稳定型心绞痛组脑钠肽、和肽素和高敏C反应蛋白水平显著高于正常对照组(P<0.01),急性心肌梗死组脑钠肽、和肽素和高敏C反应蛋白水平显著高于不稳定型心绞痛组(P<0.01);脑钠肽、和肽素水平与冠状动脉病变支数、左主干病变、冠状动脉Gensini评分呈正相关(P<0.01),而高敏C反应水平与冠状动脉病变支数、左主干病变、冠状动脉Gensini评分差异无显著性(P>0.05).结论 急性冠状动脉综合症患者脑钠肽、和肽素和高敏C反应蛋白的水平明显升高,和冠状动脉病变程度之间存在相关性.     

急性冠状动脉综合征介入治疗中应用那屈肝素的临床研究

目的 研究急性冠状动脉综合征患者在经皮冠状动脉介入治疗前应用那屈肝素的合适剂量并评估其安全性.方法 236例急性冠状动脉综合征高危患者随机分为Ⅰ组(那屈肝素0.075ml/10 kg,120例)和Ⅱ组(那屈肝素0.1 ml/10 kg,116例).两组给予相应剂量那屈肝素,每12 h皮下注射1次,至少48 h,最后一次注射1 h后行经皮冠状动脉介入治疗,术中不再追加那屈肝素.分别在末次注射前、注射后1 h、2 h、4 h、6 h、8 h测定血浆抗Xa因子活性.观察记录患者30 d内的主要心脏不良事件(死亡、再梗死、血运重建)及出血事件.结果 两组的一般临床资料、30 d内随访主要心脏事件及出血发生率差异均无统计学意义(P>0.05).各时间点血浆抗Xa因子活性Ⅱ组高于Ⅰ组,差异有统计学意义(P<0.01).结论 在急性冠状动脉综合征介入治疗前应用两种剂量那屈肝素均能达到有效的抗凝效果.     

超敏C反应蛋白和脂蛋白(a)对急性心肌梗死行急诊冠状动脉介入治疗预后的意义

目的:研究超敏C反应蛋白(hsCRP)和脂蛋白(a)[Lp(a)]对急性心肌梗死行急诊冠状动脉介入治疗(PCI)患者预后的意义。方法:回顾我院自2007-01-2010-04因急性心肌梗死行急诊PCI的118例患者的hsCRP及Lp(a)水平,对hsCRP升高组和正常组以及Lp(a)升高组和正常组在住院期间心血管事件的发生率进行比较。结果:hsCRP升高组心血管事件发生率为52.9%,而hsCRP正常组心血管事件发生率为18.2%,两者比较差异具有统计学意义(P<0.05)。而Lp(a)升高组心血管事件发生率为35.3%,Lp(a)正常组事件发生率为46.4%,两者差异无统计学意义(P>0.05)。结论:hsCRP可作为急性心肌梗死行急诊PCI患者的近期预后的预测因子,而Lp(a)对这类患者的预后无预测作用。     

冠心病患者经皮冠状动脉介入治疗术后血浆皮质抑素的变化及临床意义

目的:探讨冠心病患者经皮冠状动脉介入治疗术后血浆皮质抑素的变化及临床意义.方法:采用放射免疫方法测定40例冠心病(组)患者和40例正常对照(组)者的血浆皮质抑素,观察血浆皮质抑素水平在经皮冠状动脉介入治疗术前、术后的变化.结果:冠心病组(术前)血浆皮质抑素水平明显高于正常对照组[(2.63±0.48)ng/ml vs(1.18±0.27)ng/ml,P<0.01],差异有统计学意义.冠心病组支架置入术后第1天血浆皮质抑素水平接近术前[术后第1天(2.61±0.38)ng/mlvs术前(2.63±0.48)ng/ml,P>0.05].术后第3天和第7天血浆皮质抑素水平分别为(2.42±0.45)ng/ml和(2.13±0.39)ng/ml,较术前分别降低8%和19%,差异均有统计学意义(P均<0.05).多因素相关分析显示血浆皮质抑素与C反应蛋白呈正相关(R=0.88,P<0.05).结论:冠心病患者血浆皮质抑素水平明显升高,冠心病患者支架置入术后血浆皮质抑素水平呈逐渐下降趋势.冠心病患者血浆皮质抑素水平的升高与反映炎症的指标C反应蛋白呈正相关.     

急诊经皮冠状动脉介入治疗术后中性粒细胞水平与心肌灌注和心功能的相关性研究

目的:评价急性ST段抬高心肌梗死(STEMI)患者经皮冠状动脉介入治疗(PCI)后中性粒细胞水平与心肌灌注和心功能的相关性。方法:入选发病12 h内195例成功接受PCI的STEMI患者。PCI后12 h进行中性粒细胞计数检测,随访6个月记录心脏不良事件。根据其中性粒细胞水平分为3组:中性粒细胞4.78×109/L组(A组),32例;中性粒细胞4.78~8.79×109/L组(B组),118例;中性粒细胞8.79×109/L组(C组),45例。结果:①急诊PCI后B组和C组患者TIMI心肌灌注分级(TMPG)0~1级所占比例高于A组、TMPG达3级所占比例低于A组(均P0.05);②C组心功能Killp分级≥2级患者所占比例明显高于A组和B组(均P0.05);③随访6个月时C组心脏不良事件的发生率明显高于A组和B组(均P0.05)。结论:STEMI患者PCI后中性粒细胞水平越高,心肌灌注越差。PCI后中性粒细胞数早期监测有利于急性心肌梗死患者PCI后临床预后的评价。     

经皮冠状动脉介入治疗对稳定型心绞痛患者外周血单核细胞活性和炎症的影响

目的研究经皮冠状动脉介入治疗对稳定型心绞痛患者外周血单核细胞活性和炎症的影响。方法将100例稳定型心绞痛患者随机分为经皮冠状动脉介入治疗组和冠状动脉造影组,于术前0.5h和术后24h取静脉血,检测外周血单核细胞对白细胞介素1β、白细胞介素6、C反应蛋白和血浆淀粉样蛋白A的基础分泌和脂多糖刺激后的分泌;并检测血浆炎性标志物白细胞介素1β、白细胞介素6、C反应蛋白和血浆淀粉样蛋白A,观察它们与经皮冠状动脉介入治疗组术后随访期间主要心血管事件的关系。结果与冠状动脉造影组比较,经皮冠状动脉介入治疗组患者术后外周血单核细胞对白细胞介素1β(152.3±72.6ngL比99.4±60.2ngL,P<0.01)、白细胞介素6(127.5±44.3ngL比65.6±36.5ngL,P<0.01)和血浆淀粉样蛋白A(102.8±54.4μgL比78.4±49.6μgL,P<0.05)的基础分泌增加,接受脂多糖刺激后这种分泌作用更加显著;均与对应的血浆白细胞介素1β、白细胞介素6和血浆淀粉样蛋白A水平呈正相关(P<0.05或0.01)。随访期间,经皮冠状动脉介入治疗组的亚组分析发现,炎性标志物较高者的主要心血管事件发生率与炎性标志物较低者差异无显著性(P>0.05)。结论经皮冠状动脉介入治疗可促进稳定型心绞痛患者外周血单核细胞激活和全身炎症反应,后者可能对其预后有不良影响。     

微量白蛋白尿对冠心病PCI术后发生心脏不良事件的影响

目的观察尿微量蛋白量与冠心病患者经皮冠状动脉介入治疗(PCI)后发生心脏不良事件的关系。方法114例PCI患者中61例尿微量白蛋白>20mg/L为阳性组,53例尿微量白蛋白≤20mg/L为阴性组,两组患者PCI术后均常规服药治疗,记录PCI后10±2.3月内两组病人心脏不良事件(心源性死亡、非致死性心肌梗死、冠状动脉旁路移植或重复进行经皮冠脉介入治疗、心绞痛复发、心功能不全)发生率。结果尿微量蛋白阴性组心脏不良事件发生率为6.56%,阳性组为24.53%,差异有统计学意义(P<0.01)。结论微量白蛋白尿与冠心病PCI后心脏不良事件显著相关,微量白蛋白尿是预测冠心病患者介入治疗术后心脏不良事件的独立危险因素之一。     

急性心肌梗死发病6 h内C反应蛋白的检测及其临床意义

目的　探讨急性心肌梗死 (AMI)患者发病 6h内C反应蛋白 (CRP)变化的临床意义。方法　测定 2 17例AMI患者发病 6h内的血浆CRP浓度。将患者分为CRP增高组和CRP正常组。所有患者均予介入性治疗。结果　不利的冠状动脉事件 (包括冠状动脉闭塞、再梗死和死亡 ) ,CRP增高组 ( 32 .6 % )较CRP正常组 ( 4 .7% )显著增加 (P <0 .0 1)。两组之间心肌损伤的参数(包括肌酸磷酸激酶高峰和左心室射血功能 )比较差异无显著性。结论　AMI发病 6h内CRP水平反应出冠脉损伤的易患性 ,可预见经皮穿刺冠状动脉成形术 (PTCA) /支架后不利的冠状动脉事件。     

Prognostic value of C-reactive protein levels within six hours after the onset of acute myocardial infarction

BACKGROUND: Inflammation is an important feature of atherosclerotic lesions, and the vulnerability of coronary lesions in acute myocardial infarction (AMI) at the time of onset may be related to blood levels of C-reactive protein (CRP) on admission, before CRP levels are affected by myocardial damage. METHODS: A total of 234 patients with AMI in whom plasma CRP was measured within 6 hours after onset were studied. They were divided into 2 groups: group 1 (n = 49) with elevated CRP (>/=0.3 mg/dL) on admission within 6 hours after onset and group 2 (n = 185) with normal CRP (<0.3 mg/dL) within 6 hours after onset. All were treated by primary percutaneous transluminal coronary angioplasty with provisional stenting. RESULTS: There were no significant differences in baseline characteristics between the 2 groups. In-hospital adverse coronary events, including coronary reocclusion, reinfarction, target vessel revascularization, and death, were significantly more frequent in group 1 (22.4%) than in group 2 (4.3%, P <.005), and bailout stenting was performed significantly more frequently in group 1 (61. 2%) than in group 2 (37.8%, P <.005). In contrast, there were no significant differences between the 2 groups in parameters that represent myocardial damage, including peak creatine kinase and left ventricular ejection fraction. CONCLUSION: CRP levels within 6 hours after the onset of AMI reflect the vulnerability of culprit coronary lesions and predict adverse coronary events after primary PTCA/stenting.     

心脏彩超参数联合血清NT-proBNP预测AMI患者PCI术后并发心力衰竭的价值分析

目的 探讨心脏彩超参数联合血清N-端脑利钠肽前体（NT-proBNP）预测急性心肌梗死（AMI）患者经皮冠状动脉介入（PCI）治疗后并发心力衰竭的价值。方法 选取2018年3月～2020年1月重庆市江津区中心医院收治的行急诊PCI术治疗的169例AMI患者为研究组,另选取同期体检健康者144例为对照组,均行心脏彩超检查及血清NT-proBNP水平测定。术后随访6个月,根据心力衰竭并发情况将研究组患者分为并发心衰组与未并发心衰组,采用多因素Logistic回归性分析法分析术后24 h内的心脏彩超参数、血清NT-proBNP水平与AMI患者PCI术后并发心力衰竭的关系,采用受试者工作特征（ROC）曲线分析术后24 h内心脏彩超参数联合血清NTproBNP水平对AMI患者PCI术后并发心力衰竭的预测价值。结果 研究组左室舒张末内径（LVEDD）、左室收缩末期内径（LVESD）、Tei指数均明显大于对照组（P<0.01）,左室射血分数（LVEF）、二尖瓣舒张早期血流峰值速度（E峰）与舒张晚期血流峰值速度（A峰）比值（E/A）均明显小于对照组（P<0.01）,血清NT-proBNP水...     

氟伐他汀干预治疗对不稳定性心绞痛患者介入治疗后炎症因子影响的研究

目的　研究氟伐他汀对不稳定性心绞痛冠状动脉介入(PCI)治疗术患者高敏C -反应蛋白(hs- CRP)、肿瘤坏死因子α(TNFα)和肌钙蛋白I(cTnI)的影响。方法　选择2002年7月至2004年4月在我院行冠状动脉介入术的60例不稳定性心绞痛患者为研究对象,随机分为二组:对照组29例,常规药物治疗(抗凝、硝酸酯类、β受体阻断剂、血管紧张素转换酶抑制剂和钙拮抗剂等) 2周;氟伐他汀干预组31例,在常规治疗基础上加用氟伐他汀(商品名来适可)每日40mg治疗2周。分别于药物治疗前、药物治疗后2周(术前当天)及术后24h采集空腹静脉血,测定血清hs -CRP、TNFα和cTnI浓度。结果　药物治疗后,氟伐他汀干预组较对照组血清hs CRP、TNFα和cTnI浓度降低更明显(P<0 .01);氟伐他汀干预组术后血清hs- CRP、TNFα和cTnI浓度明显低于同期对照组(P<0. 01)。结论　冠状动脉介入术后增加血清hs- CRP、TNFα和cTnI水平;氟伐他汀降低冠心病患者血清hs -CRP、TNFα和cTnI浓度;氟伐他汀降低冠状动脉介入术后患者血清CRP、TNFα和cTnI水平。     

In-hospital and long-term prognostic value of fibrinogen, CRP, and IL-6 levels in patients with acute myocardial infarction treated with thrombolysis

Plasma fibrinogen, C-reactive protein (CRP), and interleukin-6 (IL-6) levels in patients with acute myocardial infarction (AMI) receiving thrombolysis have been related to prognosis. The aim of this study was to investigate the time course of plasma fibrinogen, CRP, and IL-6 levels during the in-hospital phase in patients with AMI receiving thrombolysis, and their relationship to in-hospital and prognosis after 12-months follow-up. In 40 patients presenting with AMI within 6 hours of symptom onset and treated with thrombolysis, plasma fibrinogen, CRP, and IL-6 levels were measured on admission and after 6, 12, 24, 48, and 72 hours; 7 days; and 6 months. Patients with other diseases that can alter fibrinogen, CRP, or IL-6 levels were excluded. Patients had a clinical follow-up at 6 and 12 months, and the following cardiac events were recorded: cardiac death, recurrent angina, recurrent AMI, and heart failure. Plasma fibrinogen concentrations decreased significantly (p <0.01 vs admission levels) at 12 hours (425 +/-94 vs 322 +/-132 mg/dL), started to increase at 24 hours, reached peak value at 72 hours (602 +/-209 mg/dL), remained elevated at 7 days, and were back to admission levels at 6 months (375 +/-79 mg/dL). CRP levels increased significantly at 12 hours (0.73 +/-0.43 vs 0.23 +/-0.11 mg/dL, p <0.01), reached peak value at 72 hours (7.66 +/-3.28 mg/dL), decreased significantly on day 7 (2.32 +/-1.17 mg/dL), and at 6 months were within normal limits (0.49 +/-0.29 mg/dL). IL-6 levels increased significantly at 6 hours (14.03 +/-8.13 vs 6.37 +/-3.88 pg/mL, p <0.05), reached peak value at 24 hours (59.49 +/-23.57 pg/mL), started to decrease at 48 hours, and at 6 months were within normal limits (2.25 +/-1.24 pg/mL). During the in-hospital phase 33 patients had an uneventful course and 7 patients had complications (3 post-AMI angina; 4 heart failure). During the 12-month follow-up period 28 patients had an uneventful course, and 12 patients had complications (1 cardiac death, 5 recurrent angina, 2 recurrent AMI, and 4 heart failure). Regarding the in-hospital prognosis, fibrinogen, CRP, and IL-6 levels were significantly higher (p <0.05) in patients with complications from 48 to 72 hours, from 12 hours until day 7, and from 6 hours until day 7, respectively. During the 12-month follow-up period fibrinogen, CRP, and IL-6 levels were significantly higher in patients with complications (at 48, 24, and 24 hours, respectively) only in the subgroup of patients who had complications within the first 6 months following AMI. Multivariate analysis showed that CRP at 48 hours was the most important factor related to in-hospital prognosis (p = 0.02), and ejection fraction followed by CRP at 24 hours (p = 0.02) to 6-month prognosis (p = 0.018). Fibrinogen, CRP, and IL-6 levels alter in patients with AMI receiving thrombolysis, and are related both to in-hospital and to 6-month follow-up prognosis.     

Level of high-sensitivity C-reactive protein is predictive of 30-day outcomes in patients with acute myocardial infarction undergoing primary coronary intervention

BACKGROUND: C-reactive protein (CRP) has been well recognized as a strong independent predictor of short-term and long-term mortality after non-ST-segment elevation acute coronary syndromes. However, limited studies have been conducted correlating CRP levels within 6 h following the onset of ST-segment elevation (ST-se) acute myocardial infarction (AMI) to mortality. The purpose of this study was to evaluate the predictive value of CRP measured by high-sensitivity CRP assay (hsCRP) on 30-day clinical outcomes in patients with ST-se AMI of onset < 6 h undergoing primary percutaneous coronary intervention (PCI). METHODS AND RESULTS: We conducted a prospective cohort study in 146 consecutive patients with ST-se AMI of onset < 6 h who were undergoing primary PCI. Blood samples for hsCRP were obtained in the catheterization laboratory before coronary angiography. Patients were classified into high (group 1: hsCRP > 2.37 mg/L, n = 73) and low (group 2: hsCRP 相似文献   

缺血后适应对急性心肌梗死患者临床及预后的影响

目的探讨急性心肌梗死(AMI)患者施行缺血后适应能否有效地降低缺血再灌注损伤,从而对心脏产生保护作用。方法选取AMI患者42例,随机分为对照组22例和缺血后适应组20例。监测2组患者PCI术前、术后2h、1、2、3d内肌酸激酶同工酶(CK-MB)值,并测定CK-MB峰值及各时间点下CK-MB平均值曲线下面积;监测PCI术前及术后2h血清C反应蛋白(CRP)、丙二醛和超氧化物歧化酶(SOD)水平;比较2组患者PCI术前及术后24h内心电图ST段回落情况。结果缺血后适应组CK-MB峰值明显低于对照组[(570.61±41.27)U/L vs(661.80±58.55)U/L,P<0.01];CK-MB平均值曲线下面积明显低于对照组[(5821.19±2912.07)%vs(9843.12±3578.02)%,P<0.01];缺血后适应组术后2hCRP下降幅度明显低于对照组(P<0.05);缺血后适应组术后丙二醛下降较对照组明显(P<0.05);缺血后适应组术后SOD升高较对照组明显(P<0.01);缺血后适应组ST段回落情况较对照组高(60.0%vs 45.5%,P<0.05),对照组中有2例患者因发生恶性心律失常死亡。结论AMI患者施行缺血后适应处理能够降低CK-MB的释放,降低氧自由基含量,减轻炎性反应,使冠状动脉恢复血流情况占有明显优势,能够明显降低再灌注损伤,发挥心脏保护作用。     

急性心肌梗死患者血B-型尿钠肽水平的变化特点

目的观察急性心肌梗死(AMI)后血B-型尿钠肽(BNP)水平升高的特点,探讨AMI后BNP水平升高的意义。方法连续入选住院AMI患者230例及正常对照111例进行BNP测定。按照首次或再发AMI后ST段抬高型或非ST段抬高型AMI(STEMI或NSTEMI)、不同部位AMI、不同冠状动脉病变、不同梗死相关血管(IRA)、IRA不同TIMI血流和是否急诊经皮冠状动脉介入治疗(PCI)进行分组,采用Student-t检验和ANOVA分析对比各组间BNP水平和心功能相关指标的差异。结果AMI后2~7天,患者BNP水平显著升高(P<0.01),平均为(553.7±735.1)ng/L,是对照组的21倍;与首次AMI组对比,再发组左室射血分数(LVEF)显著降低(P<0.01),左室舒张末径(LVEDd)、BNP水平和LnBNP均显著升高(P均<0.01);与无显著狭窄病变AMI患者对比,单支、三支血管狭窄组的BNP水平显著为高(P均<0.05);IRA的TIMI血流0~1、2级组BNP水平均显著高于TIMI血流3级组(P均<0.01);与未急诊PCI组对比,急诊PCI组血肌酸激酶同工酶(CK-MB)、肌钙蛋白T(TnT)虽显著升高(P<0.05~0.01),然BNP水平显著降低(P<0.05)。结论AMI后,血BNP水平显著升高。以再发AMI、未行急诊PCI治疗和IRA血流TIMI0~2级者更高。急诊PCI可出现心肌酶升高,而BNP降低的矛盾现象。     

急性心肌梗死介入术后无复流患者血清补体4a水平和血小板聚集率的变化

目的 探讨急性心肌梗死(AMI)经皮冠状动脉介入治疗(PCI)术后无复流患者血清补体4a(C4a)水平和血小板聚集率的变化.方法 入选行PCI的AMI患者119例,其中介入术后冠状动脉无复流患者(无复流组)28例,冠状动脉恢复血流患者(复流组)91例和疑似冠心病而行冠状动脉造影检查结果正常者(对照组)30例.检测对照组冠状动脉造影前和无复流组、复流组介入术前30 min,术后即刻、30 min、1 h、2 h、半年的C4a水平和血小板聚集率,并观察其变化.结果 无复流组、复流组和对照组术前30 min C4a水平差异无统计学意义.无复流组和复流组术前30 min血小板聚集率均高于对照组(P均＜0.05).无复流组术后即刻、30min和1 h C4a水平和血小板聚集率均高于术前和术后2 h、半年,同时也均高于复流组术后即刻、30 min和1 h(P均＜0.05).复流组不同时间的C4a水平和血小板聚集率差异无统计学意义.无复流组术后即刻、30 min和1 h,C4a水平与血小板聚集率呈正相关(r值分别为0.91、0.79和0.60,P均＜0.01).结论 C4a水平和血小板聚集率在AMI患者PCI术后早期短暂升高.

Abstract：

Objective To observe serum C4a and platelet aggregation rates changes in acute myocardial infarction (AMI) patients before and after percutaneous coronary intervention (PCI)and association with the development of no-reflow phenomenon. Methods From June 2006 to August 2009, 119 AMI patients underwent PCI (28 cases of no-reflow group, 91 cases of reflow group)and 30 subjects with suspected coronary heart diseases and normal coronary angiography results (control group) were enrolled in this study. C4a and platelet aggregation rate were measured at 30 minutes before PCI, immediately after PCI,30 minutes,l hour,2 hour, and 6 months post PCI in AMI patients and at before coronary angiography in control subjects. Results The levels of serum C4a at 30 minutes prior to PCI in control, no-reflow, and reflow groups were similar(P ＞0. 05). Platelet aggregation rate at 30 minutes prior to PCI was significantly higher in no-reflow group and reflow group than in control group ( all P ＜ 0. 05 ). Serum C4a and platelet aggregation rates were significantly higher in no-reflow group at immediate, 30 minutes and 1 hour after PCI than at 30 minutes prior to PCI, two hours and 6 months after PCI ( all P ＜ 0. 05), and were significantly higher than in reflow group at immediate, 30 minutes and 1 hour after PCI ( all P ＜ 0. 05 ). Serum C4a and platelet aggregation rates were similar at different time points in reflow group ( all P ＞ 0. 05 ). The levels of C4a in no-reflow group at immediate, 30 minutes and 1 hour after PCI were positively correlated with platelet aggregation rates (r=0. 91,0. 79 ,0. 60 ,respectively ,all P＜0.01). Conclusion The transient increase on levels of C4a and platelet aggregation rate early post PCI are verified in no-reflow patients with AMI undergoing PCI.     

急性心肌梗死KillipⅡ级患者经皮冠状动脉介入治疗后血浆脑钠素、心钠素水平的变化

目的研究急性心肌梗死(acutemyocardialinfarction,AMI)伴左心力衰竭患者经皮冠状动脉介入治疗(PCI)后心钠素(atrialnatriureticpeptide,ANP)和脑钠素(brainnatriureticpeptide,BNP)二种因子的变化及其临床意义。方法入选AMIKillipⅡ级患者40例作为试验组,在AMI1周内行PCI治疗,另入选AMIKillipⅡ级未行PCI治疗患者40例作为对照组。试验组患者于AMI48h内,PCI术后24h,术后1个月时,对照组患者在相对应的时间,采集肘静脉血,采用酶联免疫吸附法分析,测血浆ANP及BNP水平。结果两组间ANP、BNP水平比较,试验组患者AMI48h内,血浆ANP、BNP水平均与对照组相似,两者间无显著性差异(P>0.05)。PCI术后24h,术后1个月ANP、BNP水平均较对照组明显降低,两组间有显著性差异(P<0.05);组内比较,试验组患者PCI术后24hANP、BNP水平较AMI48h内减低,但两者间无显著性差异(P>0.05);PCI术后1月ANP、BNP水平较术前明显回落,两者有显著性差异(P<0.05)。对照组患者在相对应的PCI术后24h,术后1个月这一时限ANP、BNP水平较AMI48h内无明显变化(P>0.05)。结论本研究发现AMIKillipⅡ级患者经PCI治疗可使血浆ANP、BNP水平降低。