摘要
目的:探讨超敏C反应蛋白(hs-CRP)在稳定性心绞痛患者PCI围手术期中的变化与术后再狭窄的关系。方法:分析78例稳定性心绞痛患者临床资料,分析其在PCI术前、术后即刻、术后24 h、术后72 h及复查冠脉造影前的超敏hs-CRP水平;术后6个月行冠脉造影复查后分为再狭窄组(10例)及无再狭窄组(68例);比较两组hs-CRP水平。结果:再狭窄组与无再狭窄组比较,两组各项临床特征差异无统计学意义;PCI术后所有患者的hsCRP水平与术前相比均有明显升高,而且再狭窄组患者术后72 h hs-CRP水平高于无再狭窄组(9.81±4.76 vs6.64±2.89,P〈0.01),术后24 h时再狭窄组hs-CRP水平高于无再狭窄组(3.77±1.52 vs 2.43±1.05,P〈0.05)。结论:稳定性心绞痛患者PCI术后24 h、72 h时hs-CRP明显增高时,提示患者可能出现支架内再狭窄。
The electrochemical corrosion behavior of Ti-24N6-4Zr-7.9Sn alloy prepared by powder metallurgy in Hank's solutions was investigated by means of polarization measurements.The corrosion behavior of the alloy in different sintering processes was compared under different process through testing the corrosion potential(?准corr),corrosion rate(Icorr) and polarization resistance(Rp) of alloy.The results show that the corrosion potential(?准corr),corrosion rate(Icorr) and polarization resistance(Rp) of the TNZS(sintered at 1250 ℃ for 2 h) reach-962 mV,410 nA·cm-2 and 39.51kΩ·cm-2,respectively.The alloy has better corrosion resistance;the porosity of the alloy might be the locations for corrosion.
出处
《热加工工艺》
CSCD
北大核心
2012年第6期4-6,共3页
Hot Working Technology
基金
湖南省科技计划一般项目(2011FJ3063)
湖南科技大学2010年校研究生创新基金(S100110)
关键词
稳定性心绞痛
PCI术
C反应蛋白
支架内再狭窄
Ti-24Nb-4Zr-7.9Sn alloy corrosion behavior Hank's solutions polarization curve