【关键词】药物洗脱支架;,,超敏C反应蛋白质;,,白细胞介素-6
摘要:目的:比较药物洗脱支架与普通支架植入前后冠心病患者血超敏C-反应蛋白(hs-CRP)、白细胞介素-6(IL-6)、P选择素(P-selectin)、可溶性细胞间粘附分子(sICAM-1)的变化,探讨其意义。方法:选择有支架植入指征的冠心病患者66例,随机分为药物支架组和普通支架组,30例置入Cypher(Cypher支架组),36例置入普通Bxsonic支架(普通支架组)。分别于手术前,术后即刻,术后6h、术后24h、7d取肘静脉血, 采用ELISA法检测IL-6、P选择素、slCAM-1 、hs-CRP。结果:Cypher支架组与普通支架组比较P选择素、IL-6、sICAM-1、 hs-CRP水平在扩张前、术后即刻没有显著性差异(P>0.05)而术后6h、24h、7d时Cypher支架与普通支架比较测定值低且差异有显著性(P<0.05~0.01)。结论:Cypher药物洗脱支架对冠心病患者介入术后血炎症因子的产生有抑制作用,可能抑制介入术后的炎症反应是其抗再狭窄的机制之一。
关键词:药物洗脱支架;超敏C反应蛋白质;白细胞介素-6
The Effects of Drug Eluting Stents on Level of Inflammatory Factors in Patients with CHD after Angioplasty
Abstract: Objective: To compare the effects of drug eluting stent versus common stent on the levels of serum high sensitive C-reactive protein(hs-CRP), interleukin-6(IL-6),plasma P-selectin and soluble intercellular adhesion molecule-I (sICAM-1) in patients with coronary heart disease before and after angioplasty. Method: 66 patients had been done coronary angiograph and divided randomizely into drug-eluting stents implantment group(30 cases of Cypher stent implantment) and common stents implantment group(36 cases of common stent implantment).Peripheral venous blood samples were taken before, immediately,at 6,24 hours, seven days after angioplasty. The levels of hs-CRP , sICAM-1, IL-6 and P-selectin were analyzed by enzyme linked immunosorbent assay(ELISA). Result: There were no significant difference between the two groups at before and immedi无忧论文 【http://www.uklunwen.com】atety on levels of hs-CRP , sICAM-1, IL-6 and P-selectin. At 6 hours, 24 hours and seven days after angioplasty, the levels of hs-CRP , sICAM-1, IL-6 and P-selectin were significantly lower in Cypher group than those in common stent group. Conclusion: The Cypher drug-eluting stents can reduce the levels of inflammatory factors after angioplasty. The results suggested that suppressing inflammatory factors maybe one of reasons for lowing restenosis.
Key words:Drug-eluting stents;High sensitive C-reactive protein(hs-CRP);Interleukin-6(IL-6)
再狭窄是冠心病介入治疗后的主要远期并发症,目前的临床试验证实雷帕霉素洗脱支架即Cypher药物支架有很好的抗再狭窄作用[1]。本文旨在通过对Cypher支架和普通支架两组患者术后几种与冠心病有关的血炎症因子的水平比较,探讨Cypher支架抗再狭窄的机制。
1对象与方法
1.1研究对象:2003年1月至2005年6月收住我院拟行支架置入术的冠心病患者66例,经冠状动脉造影检查显示至少一支血管病变≥70%,有植入支架指征。排除标准:近期急性心肌梗死、感染、肿瘤、全身免疫性疾病、严重肝肾功能不全、外周血管疾病及其他重要脏器疾病等。随机分为两组, Cypher支架30例,普通Bx sonic支架组36例(普通支架组)。Cypher支架组30例,男性17例,女性13例;年龄平均(52.4±7.8)岁。普通支架组36例,男性22例,女性14例;年龄平均(54.2±8.6)岁。以上资料两组均无显著性差异。
1.2方法:所有患者均先行预扩张,然后置入支架。分别于扩张前,支架置入后即刻(术后即刻)和术后6h、术后24h和术后1周取肘静脉血测定白细胞介素-6(IL-6),P选择素,可溶性细胞间黏附分子-1(sICAM-1),和hs-CRP浓度。血标本直接离心将血清或血浆置于-70℃保存。标本检测均采用酶联免疫吸附(ELISA)法,试剂盒购自北京北方生物技术研究所。
1.3统计学处理:用统计软件SPSS10.0进行分析,数值以均数±标准差表示,组内比较采用方差分析;组间比较采用t检验,P<0.05差异有统计学意义。
2结果
外周静脉血样炎症因子测定结果(表1) IL-6、P-slectin、sICAM-1、hs-CRP与术前比较两组在术后6h,术后24h,术后7d均有显著性升高(P<0.05~0.01)且Cypher支架组测定值低,两组间差异有统计学意义(P<0.05),见表1。
表1两组患者各时间点外周静脉血样测定结果(略)
注:与本组扩张前比较* P<0.05** P<0.01; ▲与普通支架同期比P<0.05
3讨论
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