双导丝球囊血管成形术加支架术后血清TNF-α和IL-6测定及其临床意义

Serum levels of tumor necrosis factor-α and interleukin-6 after SafeCut^(TM) angioplasty and stent implantation and their clinical significance

目的评价双导丝球囊血管成形术对血清肿瘤坏死因子-α(TNF-α)和白细胞介素-6(IL-6)浓度的影响,并研究术后血清TNF-α和IL-6水平与远期心血管事件的关系。方法冠脉造影证实的冠状动脉粥样硬化性心脏病(简称冠心病)患者共80例,分为普通球囊组(41例)和双导丝球囊组(39例),所有患者采用酶联免疫吸附法测定术前、术中、术后即刻,术后6、24h血清TNF-α、IL-6水平,并随访术后6个月心血管事件,比较术后再狭窄患者与无再狭窄患者之间血清TNF-α、IL-6差异。结果再狭窄患者中普通球囊组术后6h TNF-α(107.39±27.97)ng/L、IL-6(65.71±8.38)ng/L均较术前(13.63±3.30)ng/L、(11.69±2.94)ng/L明显升高(tTNF-α=4.303,tIL-6=3.747,均P<0.05);双导丝球囊组术后6hTNF-α(36.89±10.16)ng/L、IL-6(48.13±9.16)ng/L均较术前(14.74±4.07)ng/L、(11.92±3.31)ng/L升高(均P<0.05);但普通球囊组升高更明显(P<0.05);而普通球囊组术后24h TNF-α(24.64±11.86)ng/L、IL-6(20.65±7.41)ng/L与术前比较差异无统计学意义(tTNF-α=1.386,tIL-6=1.134,均P>0.05);无再狭窄的普通球囊组患者和双导丝球囊组患者各时间段的TNF-α、IL-6水平均无显著变化(均P>0.05)。结论双导丝球囊组患者术后血管损伤较小、炎症反应较轻;冠脉血管成形术后6h TNF-α和IL-6升高可能是术后发生再狭窄的预报标志,对预测冠脉血管成形术后远期疗效具有一定的价值。

Objective To evaluate the effect of SafeCutTM angioplasty and stentt implantation on serum TNF- α and IL-6 levels, and their clinical significance. Methods Eighty patiedts underwent PTCA with normal balloon or SafeCntTM. Value of serum TNF- α and IL-6 before and after intervention were measured using enzyme-linked immuno-sorbent assay. Results The concentration of serum TNF- α and IL-6 were increased significantly in patients with restenosis, especially in the POBA group, but those were not significantly changed before and after intervention in patients without restenosis. Condusion The lower festenosis rate in SafeCutTM group was related to its lower injury and inflammation of blood vessel. The concentration of serum TNF- α and IL-6 after intervention may be an indicator of restenosis after intervention.