Background We developed a new combined strategy of thrombus aspiration plus intra-infarct-related artery （IRA） bolus administration of tirofiban via the aspiration catheter in patients with ST-segment elevation myoc...Background We developed a new combined strategy of thrombus aspiration plus intra-infarct-related artery （IRA） bolus administration of tirofiban via the aspiration catheter in patients with ST-segment elevation myocardial infarction （STEMI）. This strategy can reduce the distal embolism and achieve highly localized concentrations of tirofiban, which can improve myocardial reperfusion without increasing the risk of bleeding. The aim of this study was to investigate whether this combined strategy is superior to thrombus aspiration alone in improving myocardial perfusion in patients with STEMI undergoing primary angioplasty.Results Baseline characteristics of the two groups were well-balanced. The TIMI 3 flow showed a better tendency in the intra-IRA group than in the aspiration alone group （97.22% vs. 87.04%, X2=7.863, P=0.049）. The peak of CK-MB （83.9 （68.9-310.5） U/L vs. 126.1 （74.7-356.7） U/L, P=0.034） and Tnl （42.7 （14.7-113.9） ng/ml vs. 72.5 （59.8-135.3） ng/ml, FMD.029） were lower in the intra-IRA group than in the aspiration alone group. LVEF in the hospital favored the intra-IRA group, （45.7±8.3）% to （42.9±12.1）%, t=1.98, P=0.049. There was a tendency towards a lower MACE at 9-month follow-up in the intra-IRA group although it did not reach statistical difference （Log-rank X2=2.865, P=0.09）. There was no statistical difference in any bleeding events between the two groups.Conclusions Thrombus aspiration plus intra-IRA bolus administration of tirofiban combined with angioplasty may be related with improved myocardium perfusion, saved more myocardium, and resulted in a better clinical prognosis.展开更多
目的探讨急性ST段抬高型心肌梗死(STEMI)患者急诊经皮冠状动脉介入治疗(PCI)时冠状动脉(冠脉)内注射负荷剂量盐酸替罗非班对心肌灌注及心功能的影响。方法选择2007年7月—2008年12月我科确诊STEMI并接受急诊PCI患者70例,随机分为观察组...目的探讨急性ST段抬高型心肌梗死(STEMI)患者急诊经皮冠状动脉介入治疗(PCI)时冠状动脉(冠脉)内注射负荷剂量盐酸替罗非班对心肌灌注及心功能的影响。方法选择2007年7月—2008年12月我科确诊STEMI并接受急诊PCI患者70例,随机分为观察组(36例)和对照组(34例)。两组患者均进行PCI,术中观察组患者给予盐酸替罗非班10μg/kg冠脉内注射,对照组给予等量0.9%氯化钠注射液冠脉内注射。比较两组患者PCI术后即刻造影结果,术后7、30、180 d的左室射血分数(EF)、左室舒张末期内径(LVEDD)、左室收缩末期内径(LVESD)及术后180 d主要不良心血管事件(MACE)发生率,同时观察住院期间的出血并发症。结果观察组患者术后校正TIMI帧数、术后2 h ST段回落程度、磷酸肌酸激酶同工酶(CK-MB)峰值及峰值时间均优于对照组,差异有统计学意义(P<0.05);梗死相关血管无复流发生率及术后180 d MACE(包括死亡、再梗死、再次靶血管重建)发生率显著低于对照组,差异有统计学意义(P<0.05);与对照组比较,观察组术后7、30、180 d的EF显著增加,LVEDD、LVESD显著降低,差异有统计学意义(P<0.05)。两组住院期间出血并发症的发生率间差异无统计学意义(P>0.05)。结论对于STEMI患者行急诊PCI术中联合冠脉内注射替罗非班治疗可减少无复流、慢血流现象的发生,改善心肌水平再灌注状态和左室功能,同时不增加出血发生率,有利于提高临床预后。展开更多
文摘Background We developed a new combined strategy of thrombus aspiration plus intra-infarct-related artery （IRA） bolus administration of tirofiban via the aspiration catheter in patients with ST-segment elevation myocardial infarction （STEMI）. This strategy can reduce the distal embolism and achieve highly localized concentrations of tirofiban, which can improve myocardial reperfusion without increasing the risk of bleeding. The aim of this study was to investigate whether this combined strategy is superior to thrombus aspiration alone in improving myocardial perfusion in patients with STEMI undergoing primary angioplasty.Results Baseline characteristics of the two groups were well-balanced. The TIMI 3 flow showed a better tendency in the intra-IRA group than in the aspiration alone group （97.22% vs. 87.04%, X2=7.863, P=0.049）. The peak of CK-MB （83.9 （68.9-310.5） U/L vs. 126.1 （74.7-356.7） U/L, P=0.034） and Tnl （42.7 （14.7-113.9） ng/ml vs. 72.5 （59.8-135.3） ng/ml, FMD.029） were lower in the intra-IRA group than in the aspiration alone group. LVEF in the hospital favored the intra-IRA group, （45.7±8.3）% to （42.9±12.1）%, t=1.98, P=0.049. There was a tendency towards a lower MACE at 9-month follow-up in the intra-IRA group although it did not reach statistical difference （Log-rank X2=2.865, P=0.09）. There was no statistical difference in any bleeding events between the two groups.Conclusions Thrombus aspiration plus intra-IRA bolus administration of tirofiban combined with angioplasty may be related with improved myocardium perfusion, saved more myocardium, and resulted in a better clinical prognosis.
文摘目的探讨急性ST段抬高型心肌梗死(STEMI)患者急诊经皮冠状动脉介入治疗(PCI)时冠状动脉(冠脉)内注射负荷剂量盐酸替罗非班对心肌灌注及心功能的影响。方法选择2007年7月—2008年12月我科确诊STEMI并接受急诊PCI患者70例,随机分为观察组(36例)和对照组(34例)。两组患者均进行PCI,术中观察组患者给予盐酸替罗非班10μg/kg冠脉内注射,对照组给予等量0.9%氯化钠注射液冠脉内注射。比较两组患者PCI术后即刻造影结果,术后7、30、180 d的左室射血分数(EF)、左室舒张末期内径(LVEDD)、左室收缩末期内径(LVESD)及术后180 d主要不良心血管事件(MACE)发生率,同时观察住院期间的出血并发症。结果观察组患者术后校正TIMI帧数、术后2 h ST段回落程度、磷酸肌酸激酶同工酶(CK-MB)峰值及峰值时间均优于对照组,差异有统计学意义(P<0.05);梗死相关血管无复流发生率及术后180 d MACE(包括死亡、再梗死、再次靶血管重建)发生率显著低于对照组,差异有统计学意义(P<0.05);与对照组比较,观察组术后7、30、180 d的EF显著增加,LVEDD、LVESD显著降低,差异有统计学意义(P<0.05)。两组住院期间出血并发症的发生率间差异无统计学意义(P>0.05)。结论对于STEMI患者行急诊PCI术中联合冠脉内注射替罗非班治疗可减少无复流、慢血流现象的发生,改善心肌水平再灌注状态和左室功能,同时不增加出血发生率,有利于提高临床预后。
