替罗非班对急性ST段抬高型心肌梗死患者介入治疗术后心肌组织灌注水平的影响

目的在传统抗血小板和抗凝治疗基础上,加用血小板糖蛋白Ⅱb/Ⅲa受体拮抗剂替罗非班,能否改善ST段抬高型急性心肌梗死(STEMI)患者冠状动脉介入治疗(PCI)术后的心肌组织灌注水平.方法通过冠状动脉造影(CAG)确诊为STEMI的患者144例,87例患者接受传统抗血小板和抗凝治疗作为对照组,57例患者在CAG术后在对照组治疗的基础上加用替罗非班作为治疗组,治疗组患者在接受替罗非班静脉负荷量后即刻开始PCI,对照组患者在CAG术后亦立即接受PCI治疗.应用TIMI分级和TIMI心肌灌注分级(TMP)评价术前术后心肌灌注变化,并分析治疗前后患者心电图ST段偏移总和比值(sum STR)的变化.结果PCI后即刻CAG显示治疗组患者和对照组术后TMP分级达到3级水平的比例差异有统计学意义(91.2%∶78.2% ,P＜0.05);与对照组比较,治疗组患者心电图sum STR》50%和sum STR》70%的比例更高,sum STR》70%的比较2组差异有统计学意义(63.1∶46.0% ,P＜0.05);2组患者住院期间主要出血事件和心血管事件差异无统计学意义.结论在传统抗血小板和抗凝治疗基础上,联合应用替罗非班,不仅有助于改善STEMI患者PCI后的冠状动脉血流,而且对心肌组织灌注水平恢复同样有益.     

血小板膜糖蛋白和D-二聚体变化与老年冠心病合并高血压患者的研究

目的探讨老年冠心病合并高血压患者体内血小板膜糖蛋白(GP)、D-二聚体的变化及意义。方法选择老年冠心病患者116例,其中稳定性心绞痛(SAP)患者36例(SAP组),不稳定性心绞痛(UAP)患者38例(UAP组),UAP合并高血压患者42例(高血压组),健康体检者48例(对照组),冠心病患者根据有无心绞痛事件发生分为有心绞痛事件发生56例和无心绞痛事件发生60例。分别测定各组体内D-二聚体、GP水平,分析有无心绞痛事件发生之间的差异,检测其与心绞痛事件发生的敏感性。结果高血压组、UAP组D-二聚体、GP水平明显高于SAP组、对照组(P<0.05,P<0.01);高血压组D-二聚体、GP水平明显高于UAP组(P<0.05);有心绞痛事件发生患者D-二聚体、GP水平明显高于无心绞痛事件发生患者(P<0.01);有心绞痛事件阳性检出率D-二聚体、GPⅡb、GPⅢa敏感性较GPⅠb明显增高。结论 GP、D-二聚体在老年冠心病合并高血压患者心绞痛事件发生中起重要的作用,D-二聚体、GPⅡb、GPⅢa可以作为预测心绞痛事件发生较为敏感的指标。     

老年急性心肌梗死患者经桡动脉直接冠状动脉介入治疗特点和疗效

目的分析老年急性ST段抬高型心肌梗死(STEMI)患者临床和冠状动脉病变特点。方法连续入选急性STEMI行直接PCI的患者207例,根据年龄分为老年组(年龄≥65岁)105例和对照组(年龄<65岁)102例,观察2组冠状动脉病变和PCI特点以及经桡动脉直接PCI效果。结果老年组球囊预扩张比例、门-球囊时间明显高于对照组[87.6%vs 66.7%,P<0.05;(78.2±10.6)min vs(66.2±12.5)min,P<0.05],老年组明确诱因、发病至入院时间、多支病变、临时心脏起搏、电复律明显高于对照组;男性、冠心病家族史、吸烟、典型胸痛、单支病变、血栓抽吸和使用血小板膜糖蛋白Ⅱb/Ⅲa受体抑制剂、LVEF明显低于对照组(P<0.05)。结论老年急性STEMI患者在临床和冠状动脉病变方面有不同特点,与年轻患者一样,经桡动脉直接PCI是安全有效的。     

冠状动脉介入术联合冠状动脉腔内注入替罗非班治疗急性ST段抬高性心肌梗死的临床观察

目的 探讨冠状动脉介入术联合冠状动脉腔内注入替罗非班治疗ST段抬高性急性心肌梗死(STEAMI)的有效性与安全性及对冠状动脉内血栓的影响.方法 2007年2月至2010年8月诊断明确并经冠状动脉造影证实梗死相关血管(IRA)为急性闭塞病变,且成功进行急诊冠状动脉介入治疗术(PCI)的128例STEAMI患者,随机分为试验组和对照组.试验组于冠状动脉造影后立即通过造影导管于IRA按10 μg/kg替罗非班在5 min内完成腔内注入,对照组于冠状动脉造影后立即通过造影导管于注入等容积量生理盐水.观察两组患者IRA注入替罗非班或生理盐水10 min后的冠状动脉内血栓及血管再通状况,术后院内出血并发症情况,随访两组患者术后1个月内心脏不良事件及心功能.结果 试验组IRA注入替罗非班10 min后33例血栓负荷减低,其中26例心肌梗死试验性溶栓治疗(TIMI)血流分级≥1级,对照组6例血栓负荷减低,3例TIMI≥1级,两组比较差异有统计学意义(P＜0.01).两组患者术后1个月内心脏不良事件(分别为2例和3例)比较,差异无统计学意义(P＞0.05).试验组术后1个月时的美国纽约心脏病学会(NYHA)心功能分级及左心室射血分数均优于对照组(P＜0.05).结论 冠状动脉腔内注入替罗非班联合冠状动脉介入术有助于ST段抬高性急性心肌梗死IRA的血栓消退及血管再通,有效且安全.

Abstract：

Objective To assess the clinical efficacy and safety of the combination of intracoronary tirofiban infusion(ICTI) plus percutaneous coronary intervention(PCI) in patients with acute ST-elevation myocardial infarction (STEAMI). Methods The 128 cases with STEAMI were enrolled in this study. They were randomly divided into trial group and control group. The 10 μg/kg tirofiban were infused into the infarct related artery (IRA) within 5 minutes through the cather after coronary angiography in trial group (n=64). Normal saline in matched dose was infused into IRA after coronary angiography in control group (n=64). The coronary thrombosis and revascularization status were assessed within 10 minutes after injection. Postoperative bleeding complications were observed in all cases. Adverse cardiovascular events and cardiac function were followed up within 1 month in all cases. Results There were 33 cases whose thrombus burden was reduced within 10 minutes after the infusion of tirofiban in trial group, including 26 cases of thrombolysis in myocardial infarction (TIMI) ≥1. There were 6 cases whose thrombus burden was reduced within 10 minutes after the infusion of normal saline in control group, including 3 cases TIMI ≥ 1. The coronary thrombosis and revascularization status were better in trial group rather than in control group (P＜0.01). Adverse cardiovascular events occurred in 5 cases within 1 month, including 2 cases in trial group and 3 cases in control group (P＞0.05). New York heart association functional class and ejection fraction values were better in trial group rather than in control group within 1 month (P＜0.05). Postoperative bleeding complications occurred in 14 cases by TIMI criteria , including severe and mild bleeding in 2 cases in trial group and 1 cases in control group (P＞0.05), but no significant bleeding occurred in 8 cases in trial group and in 3 cases in control group (P＜0.01). Conclusions The combination of intracoronary infusion of tirofiban plus PCI is effective and safe for thrombolysis and revascularization in IRA in patients with STEAMI.     

血栓抽吸联合GPⅡb／Ⅲa治疗血栓负荷过重心肌梗死患者的疗效

目的：探讨直接经皮冠状动脉介入治疗（PCI）中血栓抽吸导管（ZEEK导管）联合血小板Ⅱb／Ⅲa受体拮抗剂（GPⅡb／Ⅲa）治疗血栓负荷过重的急性ST段抬高型心肌梗死（STEMI）的效果。方法：人选STEMI患者136例,随机分为常规PCI组（44例）、GPⅡb／Ⅲa组（45例）和GP1Ib／Ⅲa±TA（血栓抽吸）组（47例）,分析三组PCI术后即刻梗死相关血管（IRA）的TIMI血流分级、梗死部位心肌灌注水平（TMP）分级、术后72h内出血、输血比例及术后30d、1年内主要心脏不良事件（MACE）等。结果：与常规PCI组比较,GPⅡb／Ⅲa组和GPⅡb／Ⅲa±TA组术后即刻IRA的TIMI血流分级[（2．31±0．50）比（2．52±0．48）比（2．69±0．47）]、TMP分级[（2．03±0．65）比（2．31±0．48）比（2．51±0．54）]明显提高,且GPⅡb／Ⅲa±TA组明显高于GPⅡb／Ⅲa组,P均d0．05;GPⅡb／Ⅲa组和GPⅡb／Ⅲa±TA组术后30d、1年MACE发生率均明显低于常规PCI组E30d：（9．6±28．4）％、（7．1±21．7）％比（16．2±37．4）％,1年：（16．3±35．5）％、（12．4±39．3）％比（29．7士46．3）％],P均d0．01。术后72h内出血、输血比例三组间差异无显著性。结论：冠状动脉血栓负荷过重的急性ST段抬高型心肌梗死患者急诊PCI中联合使用血栓抽吸导管和血小板Ⅱb／Ⅲa受体拮抗剂安全、有效,即刻获得的TIMI血流和心肌灌注优于常规PCI组及单用血小板Ⅱb／Ⅲa受体拮抗剂组。     

冠心病患者白细胞介素8与白细胞血小板间黏附的相关性研究

目的通过分析冠心病患者血清白细胞介素8(interleukin-8,IL-8)表达量与血小板糖膜蛋白(GP)Ⅱb/Ⅲa活性、白细胞血小板聚集率之间的关系,探讨趋化因子IL-8参与冠心病发病的作用机制。方法选择冠心病患者102例(冠心病组),健康体检者45例(对照组),冠心病组于冠状动脉造影前,空腹抽取静脉血6ml,对照组于清晨空腹抽取静脉血6ml,采用流式细胞术检测白细胞血小板聚集率及GPⅡb/Ⅲa表达水平,应用酶联免疫吸附法检测血清IL-8水平。结果冠心病组IL-8[(65.98±26.44)ng/L vs(41.91±19.67)ng/L]、GPⅡb/Ⅲa[(15.06±7.89)%vs(8.06±2.34)%]、血小板中性粒细胞聚集率和血小板单核细胞聚集率较对照组明显升高,差异有统计学意义(P<0.01)。相关性分析显示,IL-8与血小板中性粒细胞聚集率、血小板单核细胞聚集率和GPⅡb/Ⅲa呈正相关(P<0.05,P<0.01)。结论冠心病患者血清IL-8表达水平与GPⅡb/Ⅲa活性、白细胞血小板聚集率显著相关,可作为潜在的检验指标和治疗靶点进行临床应用推广。     

急性心肌梗死患者冠状动脉内超选择应用替罗非班的临床研究

目的 探讨替罗非班在急性心肌梗死患者冠状动脉内超选择中的应用. 方法 2012年3月至2014年1月在我科进行急诊皮冠状动脉介入治疗(PCI)术的急性ST段抬高型心肌梗死(STEMI)患者240例,数字抽签随机分为静脉给药组(静脉组)77例、常规冠状动脉内给药组(常规组)81例和超选择冠状动脉内给药组(超选择组)82例,比较治疗后3组患者的即刻心肌梗死溶栓治疗(TIMI)血流分级、术后ST段回落率、肌酸激酶同工酶(CK-MB)及肌钙蛋白-I(CTn-I)峰值、左心室射血分数、左心室舒张末内径、主要心血管不良事件及出血事件情况. 结果 3组患者术后即刻TIMI血流差异无统计学意义(x2=0.14,P=o.529),超选择组术后ST段完全回落为61例(74.4％),高于静脉组48例(62.3％)、常规组50例(61.7％)(x2=8.24,P＜0.05).超选择组CKMB、CTn-I峰值低于静脉组和常规组(P＜0.05).3组术后左心室舒张末内径和左心室射血分数差异无统计学意义(P＞0.05);但术后3个月随访,超选择组左心室射血分数(P=0.002)、心绞痛发生率较其他两组改善(P＜0.05).而在靶病变重建、非致死性心梗、用药后血小板减少3组比较,差异无统计学意义(P＞0.05). 结论 替罗非班超选择冠状动脉内给药能增强急性心肌梗死患者的心功能,改善心绞痛症状.     

老年急性冠状动脉综合征患者介入治疗联合替罗非班出血的危险因素评价

目的探讨老年急性冠状动脉综合征(acute coronary sundrome,ACS)患者PCI联合替罗非班发生出血并发症的危险因素。方法选择2014年1月~2015年12月在秦皇岛市第一医院心内科住院的ACS患者164例,行PCI时联合应用替罗非班。根据年龄分为老年组71例(年龄≥65岁)和非老年组93例(年龄65岁),采用TIMI出血标准,分析2组患者出血并发症的发生情况,并应用logistic回归分析老年组发生出血并发症的危险因素。结果老年组术后出血发生率明显高于非老年组(43.1%vs 25.8%,P0.05)。老年组大出血、小出血发生率明显高于非老年组(14.1%vs 4.3%,P0.05)。logistic回归分析显示,女性(OR=404.434,95%CI:1.767~92543.210,P=0.030)、体质量(OR=0.817,95%CI:0.675~0.990,P=0.039)、肾小球滤过率(OR=1.185,95%CI:1.003~1.400,P=0.046)是老年组患者术后联合应用替罗非班发生出血风险的独立危险因素。结论老年ACS患者PCI联合替罗非班发生出血并发症的风险高于非老年患者,女性、低体质量、肾功能下降是老年患者术后联合应用替罗非班发生出血风险的预测指标。     

急性脑梗死患者血小板微颗粒水平及血小板聚集率的相关性研究

目的研究急性脑梗死(acute ischemic stroke,AIS)患者血清血小板微颗粒(platelet microparticle,PMP)和血小板聚集率(platelet aggregation rate,PAG)与脑梗死预后的关系。方法连续收集2015年1月~2016年1月在我院接受治疗的102例患者,其中男性56例,女性46例,平均年龄(67.81±5.68)岁。AIS组62例,对照组为40例。结果 AIS组PMP[(6.11±1.54)%vs(2.31±0.83)%,P=0.000]和PAG[(81.66±7.15)%vs(57.36±7.98)%,P=0.000]水平较对照组均明显升高。AIS组治疗2周后PMP[(4.28±1.31)%vs(6.11±1.54)%,P=0.000]和PAG[(68.78±7.49)%vs(81.66±7.15)%,P=0.000]水平均较治疗前明显下降。AIS组患者PMP与PAG水平呈显著正相关(r=0.263,P=0.037)。logistic分析显示,年龄、PMP、PAG、TC、空腹血糖与AIS预后相关。结论 PMP和PAG可作为检测判断AIS治疗效果及脑梗死预后的指标。     

替罗非班在老年人急诊经皮冠状动脉介入治疗中预防无复流的临床观察

目的观察老年人急诊PCI术中冠状动脉内注射替罗非班对术后无复流的影响。方法选择急性心肌梗死行急诊PCI患者163例,随机分为替罗非班组(83例)和对照组(80例)。替罗非班组在导丝通过病变后经导管冠状动脉内注射替罗非班10μg/kg,之后予替罗非班0.15μg/(kg·min)持续静脉滴注24 h。对照组给予常规治疗。观察2组患者TIMI、心肌灌注分级(TMPG),入院后30 d LVEF和左心室舒张末内径,心血管事件及出血并发症。结果替罗非班组TIMI血流3级和TMPG 2～3级比例较对照组明显升高,TIMI血流0～2级和TMPG 0～1级比例较对照组明显降低,差异有统计学意义(P<0.05)。替罗非班组LVEF较对照组明显改善,主要心血管事件较对照组明显降低,差异有统计学意义(P<0.05)。结论急诊PCI术中冠状动脉内注射替罗非班减少无复流,改善心肌灌注和心功能,且不增加心血管事件和并发症。     

平均血小板体积/血小板计数比值对急性ST段 抬高型心肌梗死PCI术后院内心脏不良事件的预测作用

【摘要】 目的 研究平均血小板体积（MPV）与血小板计数（P）比值（MPV/P）对急性ST段抬高型心肌梗死（STEMI）PCI术后院内不良心脏事件的预测价值。方法 回顾分析2014年1月至2015年6月在郑州大学附属洛阳中心医院接受急诊PCI的年龄＜75岁的STEMI患者341例,其中符合入选标准的患者共216例;入院时记录所有研究对象的临床资料,检测血常规、心肌损伤标志物等指标,并统计住院期间心脏不良事件（包括急性心衰、心肌再梗死、心源性死亡）的发生例数。将入选研究对象按照MPV值和MPV/P值排序并分别二等分,分为MPV高值组、MPV低值组以及MPV/P高值组、MPV/P低值组。结果 STEMI患者中,MPV/P高值组（MPV/P＞32.6）的院内主要心脏不良事件发生率明显高于比MPV/P低值组（MPV/P≤32.5）明显升高（26% 比 13%差异有统计学意义,P<0．01);MPV高值组（MPV＞8.4）与MPV低值组（MPV≤8.3）,院内主要心脏不良事件发生率差异无统计学意义（21% 比 18%,P>0.01）。结论 MPV/P对STEMI患者院内不良心脏事件的发生具有一定的预测价值。     

急性心肌梗死患者心室血栓与血小板体积和数量的相关性

目的分析急性心肌梗死(AMI)患者并发左心室血栓与平均血小板体积(MPV)和血小板计数(PLT)的相关性。方法回顾性分析2007年1月至2011年4月在阜外心血管病医院住院治疗的69例AMI并心室血栓形成患者,及138例与之年龄匹配(1∶2)的无心室血栓形成的AMI患者。比较两组患者入院时和入院后第6～8天两个时间点的MPV和PLT变化特点,以及分析MPV和PLT的相关性。结果两组患者入院时MPV差异无统计学意义[(10.3±1.0)fl比(10.3±0.8)fl,P=0.854],入院后第6～8天心室血栓组患者的MPV明显高于无心室血栓组[(11.1±1.7)fl比(10.7±0.7)fl,P=0.029]。入院时和入院后第6～8天PLT在两组间差异均无统计学意义(P=0.587、0.807)。入院后第6～8天患者MPV与PLT的关联表现为线性关系。结论 AMI患者MPV增大可能与心室血栓形成相关。     

Mean platelet volume/platelet count ratio as a predictor of long-term mortality after non-ST-elevation myocardial infarction

Previous studies reported an association between elevated mean platelet volume (MPV) and post-myocardial infarction mortality. This study explores the association between long-term mortality after non-ST-segment elevation myocardial infarction (NSTEMI) and the peripheral blood platelet indices (i.e., the mean platelet volume (MPV), platelet count, and the MPV/platelet (MPV/P) ratio). Two physicians independently reviewed the data of 619 NSTEMI patients. The blood samples were drawn and analyzed within 1?h of admission, the second, and the last hospital days. Patients were stratified into equal tertiles according to the platelet count, MPV, and MPV/platelet ratio. The primary outcome, 4-year all-cause mortality, was compared among the platelet indices tertile models. According to MPV, platelet count, and MPV/platelet ratio tertile models, there was a trend of higher 4-year mortality for the lower and upper tertiles in comparison to the middle tertiles. However, only the admission MPV/platelet ratio tercile model was statistically significant for predicting the 4-year mortality. The mortality rate of the highest MPV/platelet (48/207 (23%)) and the lowest (41/206 (20%)) tertiles were significantly higher than the middle tertile (19/206 (9%)), p?=?0.0004 by the chi-squared test. After adjusting for Global Registry of Acute Coronary Events, the patients in the combined first and third MPV/P tertiles had higher mortality in reference to those in the middle MPV/P tercile (hazard ratio 1.951, confidence interval 1.032–3.687, and p?<?0.0396). Our novel finding is that the MPV/platelet ratio is superior to the MPV alone in predicting long-term mortality after NSTEMI. We suggest that using this ratio will magnify any existing relationship between platelet indices and mortality post-NSTMI. Further studies are needed to confirm our finding.     

Mean platelet volume/platelet count ratio as a predictor of long-term mortality after non-ST-elevation myocardial infarction

Previous studies reported an association between elevated mean platelet volume (MPV) and post-myocardial infarction mortality. This study explores the association between long-term mortality after non-ST-segment elevation myocardial infarction (NSTEMI) and the peripheral blood platelet indices (i.e., the mean platelet volume (MPV), platelet count, and the MPV/platelet (MPV/P) ratio). Two physicians independently reviewed the data of 619 NSTEMI patients. The blood samples were drawn and analyzed within 1?h of admission, the second, and the last hospital days. Patients were stratified into equal tertiles according to the platelet count, MPV, and MPV/platelet ratio. The primary outcome, 4-year all-cause mortality, was compared among the platelet indices tertile models. According to MPV, platelet count, and MPV/platelet ratio tertile models, there was a trend of higher 4-year mortality for the lower and upper tertiles in comparison to the middle tertiles. However, only the admission MPV/platelet ratio tercile model was statistically significant for predicting the 4-year mortality. The mortality rate of the highest MPV/platelet (48/207 (23%)) and the lowest (41/206 (20%)) tertiles were significantly higher than the middle tertile (19/206 (9%)), p?=?0.0004 by the chi-squared test. After adjusting for Global Registry of Acute Coronary Events, the patients in the combined first and third MPV/P tertiles had higher mortality in reference to those in the middle MPV/P tercile (hazard ratio 1.951, confidence interval 1.032-3.687, and p?相似文献   

Mean platelet volume is associated with myocardial perfusion defect in diabetic patients

Diabetes mellitus (DM) is considered a coronary artery risk equivalent.1 DM is associated with an increased risk of cardiovascular morbidity and mortality.2,3 DM may cause myocardial perfusion defects involving the main coronary artery and myocardial microvascular circulation. Myocardial perfusion imaging (MPI) is a useful non-invasive tool to determine whether there is a myocardial perfusion defect.4Platelet volume is a marker of platelet activation and function and is measured as mean platelet volume (MPV).5 MPV has become a prognostic factor in coronary heart disease and may eventually be accepted as a parameter of platelet activity.6 MPV is emerging as a new risk factor for vascular complications of DM of which atherothrombosis plays a crucial role.7However, to the best of our knowledge, there have been no reports in the literature to evaluate the relationship between MPV and myocardial perfusion defect using MPI in patients with diabetes. Our aim was to evaluate whether there was a relationship between myocardial perfusion defect using myocardial perfusion scintigraphy and MPV in selected diabetic patients.     

老年患者直接冠状动脉介入术后心肌组织灌注的特点及预后分析

目的观察老年急性心肌梗死(AMI)患者接受PCI后的心肌组织水平的灌注特点及预后情况。方法选择因AMI行PCI的患者388例,根据患者年龄分为老年组(≥60岁)187例及中青年组(<60岁)201例。通过观察TIMI心肌灌注(TMP)分级、心肌blush分级(MBG)及术后ST段回落比例,评价2组患者的术后心肌组织灌注及预后。结果中青年组较老年组病变血管数明显降低,梗死相关血管开通时间明显缩短,术后MBG 3级、术后TMP 3级及ST段回落比例及LVEF均明显升高(P<0.05)。结论老年AMI患者冠状动脉病变程度重,PCI术后虽病死率低于中青年,但组织水平灌注和心功能较差,应给予足够的重视。     

Exercise treadmill testing is a poor predictor of anatomic restenosis after angioplasty for acute myocardial infarction

This study evaluated whether an exercise treadmill test could predict restenosis in 289 patients 6 months after a successful emergency angioplasty of the infarct-related artery for acute myocardial infarction. After excluding those with interim interventions (64), medical events (36), or medical contraindications to follow-up testing (25), both a treadmill test and a cardiac catheterization were completed in 144 patients, 88% of those eligible for this assessment. Four patients with left bundle branch block or pacemaker rhythm at the time of treadmill testing were also excluded from analysis. Of six follow-up clinical and treadmill variables examined by multivariable logistic regression analysis, only exercise ST deviation was independently correlated with restenosis at follow-up (chi 2 = 5, p = 0.02). The clinical diagnosis of angina at follow-up, although marginally related to restenosis when considered by itself (p = 0.04), did not add significant information once ST deviation was known. The sensitivity of ST deviation of 0.10 mV or greater for detecting restenosis was only 24% (13 of 55 patients), and the specificity was 88% (75 of 85 patients). The sensitivity of exercise-induced ST deviation for detection of restenosis was not affected by extent or severity of wall motion abnormalities at follow-up, by the timing of thrombolytic therapy or of angioplasty, or by the presence of collateral blood flow at the time of acute angiography. A second multivariable analysis evaluating the association of the same variables with number of vessels with significant coronary disease at the 6-month catheterization found an association with both exercise ST deviation (p = 0.003) and exercise duration (p = 0.04). Angina symptoms and exercise treadmill test results in this population had limited value for predicting anatomic restenosis 6 months after emergency angioplasty for acute myocardial infarction.     

Metabolic syndrome is a predictor for an ECG sign of no-reflow after primary PCI in patients with acute ST-elevation myocardial infarction

Background and aimThe purpose of this study was to evaluate both the predictive value of metabolic syndrome (MS) on no-reflow phenomenon and 30-day clinical outcomes on patients undergoing primary percutaneous coronary intervention (PCI) for acute ST-elevation myocardial infarction (STEMI).Methods and resultsOne hundred and twelve consecutive patients (mean age 57 ± 11 years, 94 male) with acute STEMI treated with primary PCI were analysed prospectively. Sum of ST-segment elevation was obtained immediately before and 60 min after the restoration of TIMI-3 flow. The difference between two measurements was accepted as the amount of ST-segment resolution and was expressed as ∑STR. ∑STR < 50% was accepted as ECG sign of no-reflow phenomenon. Metabolic syndrome was defined based on Adult Treatment Panel-III criteria.The no-reflow was found in 22.3% of the entire group and was significantly higher in patients with MS than those without MS (43.7% vs. 13.7%, p < 0.001). There was no significant difference in no-reflow between patients who had both MS and diabetes mellitus (DM) and patients who had MS but not DM (42.5% vs. 50%, respectively; p > 0.05).ConclusionThe presence of MS may play an important role in the occurrence of no- reflow in STEMI treated with primary PCI.     

影响老年患者急诊冠状动脉介入术后消化道出血的因素分析

目的分析老年急性心肌梗死(AMI)接受急诊PCI患者术后出现消化道出血(GIB)的危险因素。方法入选2014年1月~2015年12月因ST段抬高型心肌梗死住院行急诊PCI的老年患者622例,根据住院期间是否出现GIB分为GIB组45例和对照组577例,分析影响住院期间GIB的危险因素。结果与对照组比较,GIB组年龄[(73.2±9.7)岁vs(69.5±10.6)岁,P=0.014],女性(46.7%vs 30.2%,P=0.029)、肾功能异常(24.4%vs9.5%,P=0.045)、用替格瑞洛(42.2%vs 27.0%,P=0.038)及替罗非班(31.1%vs 17.2%,P=0.026)、住院时间[(5.9±2.1)d vs(5.1±1.4)d,P=0.012]、停用抗栓药(24.4%vs 9.2%,P=0.004)及院内病死率(6.7%vs1.2%,P=0.029)升高。年龄每增长10岁、女性、肾功能异常、用替格瑞洛及替罗非班是老年患者住院期间出现GIB的独立危险因素。结论多种因素导致老年急诊PCI后GIB,应高度关注这些高危患者,及时处理,改善预后。     

Enlarged left atrium is a simple and strong predictor of poor prognosis in patients after myocardial infarction

BACKGROUND AND AIM: Patients after myocardial infarction (MI) differ according to the extend of myocardial damage and prognosis. Diastolic function impairment may have great impact on development of heart failure and outcomes. We evaluated the prognostic value of various echocardiographic measurements in 18-month and 3-year observation after MI. METHODS: 60 patients after MI (44 male, mean age 60 +/- 11) were examined by transthoracic echocardiography with the assessment of wide spectrum of parameters. Mortality and combined end points (cardiac deaths and heart failure exacerbation) were assessed after 18-month and 3-year observation and groups with and without end points were compared. Optimal cutoff values were estimated by receiver operating characteristic (ROC) analysis and resulting Kaplan-Meier curves were compared. RESULTS AND CONCLUSIONS: After 18 months, 11 deaths occurred and 20 subjects experienced hospitalization caused by heart failure exacerbation. Although the group with cardiac events showed a greater enlargement of the left ventricle and lower ejection fraction, the highest relative risk of poor outcome (RR = 5.0) was related to the left atrial enlargement above 44 mm. Although restrictive or pseudonormal inflows were connected with 2.1 relative risk of combined end point, all patients with E deceleration time < or = 130 ms experienced heart failure exacerbation or death. Despite tissue Doppler and propagation parameters describing elevated end-diastolic pressure differed between groups with various outcomes in multivariate analysis, only enlarged left atrium was an independent predictor for both combined end point and cardiac death. Further 3-year follow-up solely confirmed the role of above described predictors.