可降解涂层与永久性涂层药物洗脱支架治疗冠心病合并糖尿病患者的有效性及安全性研究

目的 比较可降解涂层与永久性涂层药物洗脱支架治疗冠心病合并糖尿病患者的远期疗效及安全性.方法 回顾性分析2008年1月至2012年12月我院确诊为冠心病合并糖尿病并行经皮冠状动脉介入治疗(percutaneous coronary intervention,PCI)的患者364例,男性261例,女性103例,145例植入可降解涂层药物洗脱支架,219例植入永久性涂层药物洗脱支架;对比术后两组患者主要不良心血管事件(main adverse cardiac events,MACE)的发生情况.结果 两组患者在临床一般基线资料、冠脉病变特征等方面均无统计学差异(P＞0.05).可降解涂层组与永久性涂层组相比,两组在心源性死亡(1.4％ vs 1.9％)、非致死性心肌梗死(0.7％ vs 0.9％)、支架内血栓(2.1％ vs2.3％)、靶血管血运重建(2.8％ vs 2.8％)方面差异均无统计学意义(P＞0.05).结论 永久性涂层药物洗脱支架和可降解涂层药物洗脱支架治疗冠心病合并糖尿病患者均有效,且两者安全性无明显差异.     

Firebird and Cypher sirolimus-eluting stents and bare metal stents in treatment of very long coronary lesions

Background As a kind of sirolimus-eluting stent （SES） made in China, Firebird SES is more effective than bare metal stent （BMS） and not inferior to Cypher SES for short coronary lesions in terms of reduction of restenosis and revascularization. However, Firebird SES does not show any benefits in patients with a very long coronary lesion （VLCL）. The present study was undertaken to evaluate the safety and efficacy of Firebird SES for VLCL by comparison of Cypher SES and BMS. Methods In this prospective, nonrandomized and comparative study, eligible patients with de novo coronary lesion （≥ 30 mm） between January 2005 and June 2006 were allocated into Firebird SES group, Cypher SES group or BMS group. They were subjected to an angiographic follow-up of 6 months and a clinical follow-up of 12 months. The primary endpoints constitute the in-stent and in-segment restenosis rates at 6 months. The secondary endpoint was defined as a major adverse cardiovascular event （MACE） that was a 12-month combined endpoint of all-cause deaths, reinfarction or in-stent thrombosis, and target-lesion revascularization. The 12-month in-stent thrombosis was also evaluated to address the safety of Firebird SES implantation exceptionally. Results A total of 468 patients were assessed for eligibility. Of 113 patients who were finally included according to the prior inclusion and exclusion criteria, 39 （41 lesions） were treated with Firebird SES, 37 （39 lesions） with Cypher SES, and 37 （37 lesions） with BMS. There were no significant differences in the baseline characteristics between the three groups; but there were longer lesions, more frequent use of overlapping stent in the Firebird SES group and the Cypher SES group. Angiographic follow-up showed that the rates of binary stenosis were similar between the Firebird SES group and the Cypher SES group （in-segment： 14.6% vs 12.8%, relative risk （RR）1.14, P=0.81; in-stent： 9.8% vs 10.3%, RR 0.95, P=0.94）, and significantly lower than those in the B     

Quantitative assessment of late lumen loss after biodegradable polymer and permanent polymer sirolimus-eluting stents implantation

Background Sirolimus-eluting stents (SES) are reported to be associated with reduced late lumen loss (LLL),resulting in less frequent restenosis when compared to bare-metal stent.The current study aime...     

Sirolimus-eluting stents for treatment of drug-eluting versus bare-metal stents restenosis: 42-month clinical outcomes from a Chinese single center

Background  Restenosis of bare-metal stents (BMS) and drug-eluting stents (DES) has been increasingly treated with sirolimus-eluting stents (SES), but the long-term outcomes are unknown.

Methods  In our study, 388 consecutive patients (144 DES restenosis and 244 BMS restenosis) with 400 lesions (147 DES restenosis and 253 BMS restenosis) treated with SES were included. The rates of target lesion revascularization (TLR) and major adverse cardiac events (MACE) at 42 months were analyzed.

Results  At the mean follow-up of 42 months, the rates of death (3.5% vs. 3.3%, P=1.000) and myocardial infarction (2.8% vs. 1.2%, P=0.431) in the DES group and BMS group were comparable. Compared with the BMS group, ischemia-driven TLR occurred with a higher frequency in the DES group (18.8% vs.10.7%, P=0.024). This translated into an increased rate of MACE in the DES group (22.2% vs. 14.0%, P=0.034). Stent thrombosis occurred with a similar frequency in both groups (2.8% vs. 1.6%, P=0.475). Multivariate analysis showed that DES restenosis (OR=1.907, 95% CI 1.108–3.285, P=0.020) and smoking (OR=2.069; 95% CI 1.188–3.605; P=0.010) were independent predictors of MACE.

Conclusions  Although SES implantation appears to be safe and effective, it was associated with higher TLR recurrence for DES than BMS restenosis.

     

可降解涂层与永久涂层药物洗脱支架治疗冠状动脉粥样硬化性心脏病合并糖尿病患者的近期疗效

目的比较可降解涂层药物洗脱支架与永久涂层药物洗脱支架在冠状动脉粥样硬化性心脏病（简称冠心病）合并糖尿病患者中的应用疗效。方法回顾性分析240例择期行经皮冠状动脉介入术（PCI）置入药物洗脱支架治疗冠。0病合并糖尿病患者。其中112例患者置入可降解涂层药物洗脱支架（观察组）,128例患者置入永久涂层药物洗脱支架（对照组）,术后进行随访,观察患者的疗效及临床主要不良心脏事件的发生情况。结果平均随访时间（360±65）d。观察组与对照组在总死亡、靶病变重建、靶血管重建、支架内血栓形成及主要不良心脏事件等方面比较差异均无统计学意义（P〉0．05）。结论可降解涂层药物洗脱支架用于冠心病合并糖尿病患者PCI后近期疗效与永久涂层药物洗脱支架相当,其远期效果有待进一步研究。     

Comparison of the safety and efficacy of biodegradable polymer drug-eluting stents versus durable polymer drug-eluting stents: a meta-analysis

Background

A meta-analysis was conducted to assess the safety and efficacy of biodegradable polymer drug-eluting stents (BP-DESs).

Methods

PubMed, Science Direct, China National Knowledge Infrastructure, and Chongqing VIP databases were searched for randomized controlled trials comparing the safety and efficacy of BP-DESs versus durable polymer drug-eluting stents (DP-DESs). Efficacy included the prevalence of target lesion revascularization (TLR), target vessel revascularization (TVR), and late lumen loss (LLL), and safety of these stents at the end of follow-up for the selected research studies were compared.

Results

A total of 16 qualified original studies that addressed a total of 22,211 patients were included in this meta-analysis. In regard to efficacy, no statistically significant difference in TLR (odds ratio (OR) = 0.94, P = 0.30) or TVR (OR 1.01, P = 0.86) was observed between patients treated with BP-DESs and those with DP-DESs. However, there were significant differences in in-stent LLL (weighted mean difference [WMD] = −0.07, P = 0.005) and in-segment LLL (WMD = −0.03, P = 0.05) between patients treated with BP-DESs and with DP-DESs. In terms of safety, there was no significant difference in overall mortality (OR 0.97, P = 0.67), cardiac death (OR 0.99, P = 0.90), early stent thrombosis (ST) and late ST (OR 0.94, P = 0.76; OR 0.96, P = 0.73), or myocardial infarction (MI) (OR 0.99, P = 0.88) between patients treated with BP-DESs and with DP-DESs. However, there was a statistically significant difference in very late ST (OR 0.69, P = 0.007) between these two groups. In addition, the general trend of the rates of TVR and TLR of BP-DESs groups was lower than DP-DESs groups after a 1-year follow-up.

Conclusion

BP-DESs are safe, efficient, and exhibit superior performance to DP-DESs with respect to reducing the occurrence of very late ST and LLL. The general trend of the rates of TVR and TLR of BP-DESs groups was lower than DP-DESs groups after a 1-year follow-up.     

国产药物洗脱支架治疗冠心病的造影随访结果

目的通过复查冠脉造影观察国产药物洗脱支架择期治疗冠心病的临床疗效。方法择期接受Firebird支架(雷帕霉素洗脱支架)治疗的57例冠心病患者,78支病变血管的90处罪犯病变置入98枚Firebird支架,随访6~9个月并复查冠脉造影。结果支架内再狭窄率为3.51%。结论国产药物洗脱支架具有良好的临床疗效。     

Very late coronary aneurysm formation with subsequent stent thrombosis secondary to drug-eluting stent

Drug-eluting stents have changed the practice in interventional cardiology. With the widespread use of these stents important safety concerns regarding stent thrombosis and formation of coronary artery aneurysm have been expressed. While the majority of attention was focused on stent thrombosis, the formation of coronary aneurysm was only described in anecdotal reports. We report on a patient who suffered from very late stent thrombosis in association with coronary artery aneurysm formation secondary to drug-eluting stent but not to bare-metal stent.

     

多个药物支架植入安全性和可行性的临床研究

目的 评估多药物支架植入术的近期疗效及安全性.方法 对我院从2004年6月到2005年12月共34例多个药物支架(≥3枚)植入术进行回顾性分析,对照组为单个支架植入组(n=64)和两支架植入组(n=53),随访术后6月冠状动脉内急性及亚急性血栓形成的发生率、再狭窄和心血管事件的发生率.结果 151例患者PCI治疗均成功.介入治疗1个月随访结果显示,多支架组、两支架组及单支架组均没有发生冠状动脉内血栓形成(P＞0.05),介入治疗6个月随访结果显示,再狭窄及心血管事件发生率均无统计学差异(P＞0.05).结论 多个药物支架植入治疗,并不增加近期血栓形成和心血管事件的发生率.     

Vascular brachytherapy revisited for in-stent restenosis in the drug-eluting stent era: current status and future perspective

Percutaneous coronary intervention （PCI） with drug-eluting stents （DESs） has revolutionized the management of atherosclerotic coronary artery disease. However, in-stent restenosis （ISR） has been the downside of all coronary interventions with the devices that have been tested so far, even in the DES era. The impact of ISR is still an important issue due to the recurrent costs from need for repeat PCI and bypass surgery in some patients who underwent PCI with DES. A safe and cost-effective method is desired to overcome this unfavorable burden following PCI with DES. Vascular brachytherapy （VBT） is one of the approved indications and has evolved over a decade as a valuable alternative to treat ISR. Although VBT has been regarded as a standard therapy in ISR, it has cumbersome logistics and global applicability is decreasing, leading more extensive introduction of DES.     

非顺应球囊后扩张对置入药物洗脱支架预后的影响

目的评估使用非顺应性球囊后扩张对经置入药物洗脱支架冠状动脉粥样硬化性心脏病(以下简称冠心病)患者的疗效。方法回顾性分析2011年1月至2011年5月共356例行药物洗脱支架植入且使用非顺应性球囊后扩张的患者,采用倾向性评分抽取同期356例行药物洗脱支架植入术而未后扩张的患者与之1∶1匹配。结果 2组在年龄、性别、临床表现、主要危险因素及冠状动脉病变特征方面比较,差异无统计学意义(P>0.05),具有可比性。平均随访时间18个月,后扩张组主要不良心血管事件(major adverse cardiac events,MACE)明显低于未后扩张组(10.1%vs 15.7%,P=0.020),主要是靶血管重建(6.2%vs10.7%,P=0.010)、支架内血栓(1.1%vs 3.7%,P=0.030)发生率比较,差异有统计学意义(P<0.05),而心肌梗死(3.9%vs4.6%,P=0.700)、死亡(1.1%vs 1.7%,P=0.760)比较,差异没有统计学意义。结论冠心病患者置入药物洗脱支架后使用非顺应性球囊后扩张安全,可改善患者的临床预后。     

无保护左主干病变应用药物洗脱支架介入治疗的预后及影响因素分析

目的评价无保护左主干病变应用药物洗脱支架介入治疗的预后及影响因素。方法 45例无保护左主干病变患者接受经皮冠状动脉介入治疗（PCI）,根据病变是否累及左主干远端分叉分组,开口或体部病变为非分叉组（26例）,累及左主干远端或前降支、回旋支开口者为分叉组（19例）。15例患者术中应用血管内超声指导,13例在术后（9.5±6.3）个月进行了冠状动脉造影复查。结果 45例患者经治疗后均达到操作成功标准。术后42例患者获得随访,随访时间13～48个月。分叉组随访期间再发心绞痛率明显高于非分叉组（P〈0.05）,但两组主要心脏不良事件（MACE）发生率比较差异无统计学意义（P〉0.05）。对MACE单因素分析发现,术中血管内超声指导患者MACE发生率明显低于未应用血管内超声指导患者（P〈0.05）。13例术后复查患者4例发生支架内再狭窄,均发生在分叉组,且双支架术再狭窄率明显高于单支架（P〈0.01）。结论经选择的无保护左主干病变药物洗脱支架治疗是可行和安全的,可取得较好的近远期效果,术中应用血管内超声指导可明显减少MACE的发生。     

紫杉醇洗脱支架治疗冠状动脉硬化性心脏病近期效果

目的评价紫杉醇洗脱支架（PES,商品名TAXUS）治疗冠状动脉硬化性心脏病患者的近期效果及安全性.方法对2003年7月至2004年11月在我院接受PES植入治疗的300例患者的即刻疗效和随访结果进行总结与分析.结果300例患者共处理350处病变,植入支架355枚,其中B2型以上复杂病变248处（70.9%）,小管径支架（2.50～2.75 mm）94处（26.5%）、长支架（＞20 mm）130处（36.6%）;术中未发生严重并发症,手术成功率100%.随访250例（83.3%）,平均随访6个月（1～15个月）,8例（2.7%）患者有心绞痛样发作,其中2例冠状动脉造影复查无支架再狭窄病变,1例于术后5个月发生心肌梗死,2例因非心源性因素死亡.结论PES治疗冠状动脉硬化性心脏病近期效果明显,且较为安全.     

Comparison of drug-eluting stents with bare metal stents implantation for the treatment of acute ST-elevation myocardial infarction: 2-year clinical outcomes from single-center registry

Background  Some larger scale, randomized studies have demonstrated the superiority of drug-eluting stents (DES) over bare metal stents (BMS) for the treatment of acute myocardial infarction (AMI). This study aimed to investigate the impact of DES, in comparison with BMS, on the 2-year clinical outcomes in patients with ST-elevation myocardial infarction (STEMI).

Methods  From January 2002 to December 2008, a total of 1301 consecutive STEMI patients treated with coronary stenting in Shenyang Northern Hospital were prospectively registered. Patients received BMS (n=868) or DES (n=435) implantation in the infarction related artery according to physician’s discretion. A propensity score analysis was performed and two well matched subgroups were selected (BMS, n=288; DES, n=288) to evaluate the 2-year clinical outcomes. The primary outcome was the occurrence of major adverse cardiac events (MACE), which was defined as a composite of all-cause death, myocardial infarction (MI), or target vessel revascularization (TVR).

Results  Survival salvage analysis showed that 2-year cumulative hazards were not significantly different between the two groups with respect to TVR (2.8% vs. 3.1%, log-rank P=0.780), stent thrombosis (1.7% vs. 4.2%, log-rank P=0.079) and MACE (8% vs. 10.8%, log-rank P=0.236). Multivariate analysis showed that DES was an independent protective factor of MI (HR: 0.211, 95% CI: 0.049 to 0.908) and stent thrombosis (HR: 0.327, 95% CI: 0.107 to 0.994).

Conclusion  DES was associated with similar 2-year clinical outcomes to those of BMS for the treatment of STEMI in daily practice.

     

Comparison of the incidence of late stent thrombosis after implantation of different drug-eluting stents in the real world coronary heart disease patients: three-year follow-up results

Background Late stent thrombosis （LST） is still concerned by interventions cardiologists in daily clinical practice. This study aimed to compare the incidence of LST after implantation of different drug-eluting stents （DES） in coronary heart disease （CHD） patients in the real world.Methods From December 2001 to February 2009, a total of 11 875 consecutive CHD patients undergone DES implantation were enrolled in this single-center registery study. Patients with acute ST-segment elevation myocardial infarction, mixed DES implantation, restenosis lesions, and patients who could not take dual antiplatlet medication and those who were contraindicated for coronary interventional treatment were excluded. All patients were treated with completed dual antiplatelet medications for at least 9 months after DES deployment. The follow-up was completed by outpatient visits, letter correspondence, phone calls and coronary angiography. Definite LST was diagnosed auording to the Academic Research Consortium （ARC） definition.Results Cypher or Cypher Select stents were implanted in 4104 cases, Taxus or Taxus Liberty stents in 2271 cases and Firebird stents （Chinese rapamycin-eluting stents） in 5500 cases. One-year follow-up was completed in 9693 patients, including 3346 cases with Cypher or Cypher Select stents, 1529 cases with Taxus or Taxus Liberty stents and 4818 cases with Firebird stents. Two- and three-year follow-up results were obtained in 7133 and 4353 patients, respectively, including 2410 and 1760 cases with Cypher or Cypher Select stents, 1285 and 900 cases with Taxus or Taxus Liberty stents as well as 3438 and 1693 cases with Firebird stents. One-year follow-up results showed that the incidence of LST was 1.08% in patients with Cypher or Cypher Select stents, 1.24% in those with Taxus or Taxus Liberty stents and 0.71% in those with Firebird stents; there was no significant difference between those with Cypher or Cypher Select and Firebird stents, but there was significant difference between those with Taxus or Taxus Liberty and Firebird stents （P=0.044）. The incidence of LST at the 2- and 3-year follow-up was 1.33% and 1.70% in those with Cypher or Cypher Select stents, 1.40% and 1.70% in those with Taxus or Taxus Liberty stents, and 0.83% and 0.95% in those with Firebird stents, respectively. There were no significant differences among the three groups.Conclusions This study indicates that first-generation DES are acceptable to treat complex coronary lesions, and there is no significant difference of LST for three different DES.     

紫杉醇洗脱支架治疗冠状动脉硬化性心脏病近期效果

目的 评价紫杉醇洗脱支架(PES,商品名TAXUS)治疗冠状动脉硬化性心脏病患者的近期效果及安全性。方法 对2003年7月至2004年11月在我院接受PES植入治疗的300例患者的即刻疗效和随访结果进行总结与分析。结果 300例患者共处理350处病变,植入支架355枚,其中B2型以上复杂病变248处(70.9%),小管径支架(2.50~2.75mm)94处(26.5%)、长支架(>20mm)130处(36.6%);术中未发生严重并发症,手术成功率100%。随访250例(83.3%),平均随访6个月(1~15个月),8例(2.7%)患者有心绞痛样发作,其中2例冠状动脉造影复查无支架再狭窄病变,1例于术后5个月发生心肌梗死,2例因非心源性因素死亡。结论 PES治疗冠状动脉硬化性心脏病近期效果明显,且较为安全。     

药物洗脱支架的社会经济学分析

目的：对于目前国内药物洗脱支架（DES）在临床普遍使用的现象进行社会经济学分析,为我国DES和金属裸支架（BMS）的科学合理使用提供依据.方法：运用成本效果分析方法分析比较了唐都医院心内科冠心病患者在经皮冠状动脉介入治疗（PCI）中植入DES相对于BMS的相关医疗成本开支的成本效果,以2006年国家统计局公布的我国居民人均年收入为标准,初步估测中国居民个人支付相关医疗费用的情况.结果：随着植入支架个数（1根或2根）和中国各地居民所享受的医保制度不同,植入DES较BMS增加的医疗费用相当于2006年中国城镇居民人均年可支配收入的0.80~1.32倍,2006年中国农民年纯收入的7.03~12.20倍.按照DES减少靶血管血运重建（TVR）率不同,植入1根或2根支架时,为避免一次TVR事件,中国城镇居民和农民需额外支付的医疗费用为人民币9720~59 500元和38 000~205 833元.结论：就中国医疗保障体系和国民的个人支付能力而言,BMS可能不应该过早地退出心血管介入领域.     

Impact of admission creatinine level on clinical outcomes of patients with acute ST-elevation myocardial infarction undergoing primary percutaneous coronary intervention with drug-eluting stent implantation

Background Prognosis of patients with acute ST-elevation myocardial infarction （STEMI） and renal dysfunction （RD） who received primary percutaneous coronary intervention （PCI） has not been fully investigated in the drug-eluting stent （DES） era. This study aimed to evaluate the impact of admission serum creatinine level on short-term outcomes in patients with acute STEMI undergoing DES-based primary PCI.
Methods Primary PCI with DES implantation was attempted in 619 consecutive STEMI patients within 12 hours of symptom onset. Among them, 86 patients had a serum creatinine level ≥115 μmol/L on admission （RD group）, and the remaining 533 patients had normal renal function （non-RD group）. The primary endpoint was 30-day major adverse cardiac events （MACE, including death, non-fatal reinfarction, and target vessel revascularization）, and the secondary endpoint was subacute stent thrombosis.
Results Patients in the RD group were older than those in the non-RD group. There are more female patients in the RD group and they had a history of hypertension, myocardial infarction and revascularization. The occurrence rates of Killip class ≥2 （29.1% vs 18.6%, P=0.02） and multi-vessel （62.8% vs 44.5%, P=0.001） and triple vessel disease （32.6% vs 18.2%, P=0.002）, in-hospital mortality （9.3% vs 3.8%, P=0.03）, and MACE rate during hospitalization （17.4% vs 7.7%, P=-0.006） were higher in the RD group than those in the non-RD group. At a 30-day clinical follow-up, the MACE-free survival rate was significantly reduced in the RD group （76.7% vs 89.9%, P=-0.0003）. Angiographic stent thrombosis occurred in 3 （3.5%） and 7 （1.3%） of patients in the RD group and non-RD group, respectively （P=0.15）. Multivariate analysis revealed that the serum creatinine level 〉115 μmol/L on admission was an independent predictor for MACE rate at a 30-day follow-up （Hazard ratio （HR） 3.31,95% CI 1.19-9.18, P 〈0.001）.
Conclusion Despite similar prevalence of stent thromb     

Long-term outcomes of drug-eluting versus bare-metal stent implantation in patients with chronic total coronary artery occlusions

Background There are limited data on the efficacy of drug-eluting stents （DES） for treatment of chronic total occlusions （CTO）. The aim of the study was to evaluate the long-term clinical outcomes of DES implantation for CTO compared with bare-metal stent （BMS） implantation.
Methods Between June 1995 and December 2006, a total of 1184 patients with successful recanalization of at least one de novo CTO lesion were consecutively registered, including 660 （55.7%） who underwent DES and 524 （44.3%） who underwent BMS implantation. All patients were followed up for up to 5 years for occurrence of major adverse cardiac events （MACE）. Long-term survival rates were estimated with the Kaplan-Meier method.
Results Baseline clinical and angiographic characteristics were comparable between the two groups except that patients in the DES group received longer dual antiplatelet therapy （（7.4±2.5） months vs （1.7±0.8） months, P 〈0.001）. Average follow-up periods were （4.7±0.89） and （3.2±1.3） years for the BMS and DES groups, respectively. There was no significant difference in 5-year survival rates between the two groups （90.3% for DES group vs 89.6% for BMS group, Log-rank P=0.38）, but the 5-year target vessel revascularization （TVR）-free survival rate in the DES group was significantly higher than that in the BMS group （81.6% vs 73.5%, Log-rank P 〈0.001）. The cumulative MACE-free survival in the DES group was also significantly higher than that in the BMS group （80.6% vs 71.5%, Log-rank P〈0.001）. The rates of readmission caused by cardiovascular disease （27.0% vs 37.8%, P 〈0.001） and the need for bypass surgery were significantly lower in the DES group （1.5% vs 3.4%, P 〈0.05）. By multivariable analysis, DES implantation could significantly lower the long-term MACE risk of PCI for CTO patients （HR： 0.492; 95% Cl 0.396-0.656, P 〈0.001）. Left ventricular ejection fraction 〈50% and elderly （〉65 years） were identified as independent predictors of long-term MACE during follow-up.
Conclusion This study demonstrates the long-term （up to 5 years） efficacy of DES for treatment of CTO, which is superior to BMS implantation in reducing the rates of TVR and MACE, as well as the need of re-admission and bypass surgery.     

国产药物洗脱支架在急性冠脉综合征中的应用

目的：探讨国产药物洗脱支架（Firebird支架）在急性冠脉综合征急诊介入治疗中应用的安全性和有效性.方法：2004年10月～2005年7月间治疗急性冠脉综合征患者86例,所有患者均于发病12h内行急诊经皮冠状动脉介入治疗（PCI）.治疗时随机置入Firebird支架或Cypher支架.Firebird支架组46例,Cypher支架组40例.结果：86例患者急诊PCI治疗均获得成功.Firebird组46支罪犯血管置入53枚Firebird支架,Cypher组40支罪犯血管置入49枚Cypher支架.其中1例置入Cypher支架者术后出现脑出血而死亡.Firebird支架组和Cypher支架组比较,PCI术后TIMI3级率和并发症发生率无显著性差异.对85例患者进行了3～6个月的随访,两组患者均未发生任何心血管事件,术后6个月Firebird支架组有20例（43%）行冠状动脉造影检查,无一例发生支架内再狭窄;Gypher支架组有19例（49%）行冠状动脉造影检查,1例发生支架内再狭窄,两组再狭窄率无显著性差异.结论：Firebird支架在急性冠脉综合征急诊介入治疗中应用有较好的安全性和有效性.