目的探讨颈动脉支架置人术(carotidarterystenting~CAS)后血清超敏C一反应蛋白(high—sensitiveC—reactiveprotein,hs—CRP)的动态变化及其与支架内再狭窄的相关性。方法在南京军区南京总医院神经内科行CAS治疗的患者,分别在术前、术后12h、7d、3个月和6个月时检测血清hs—CRP水平,并在6个月后复查脑血管造影,观察有无支架内再狭窄。结果纳入84例行CAS治疗的患者,15例(24%)患者在CAS术后出现支架再狭窄,其中3例狭窄程度〉50%,12例狭窄程度为30%~50%。所有患者术后12hue血清hs—CRP水平均显著高于治疗前(P均〈0.01),而术后6个月时较治疗前显著降低(P均〈0.01)。单变量分析显示,再狭窄组糖尿病比例显著高于无再狭窄组(P〈0.01)。再狭窄组术后7d[(8.83±1.94)mg/L对(6.77±1.63)mg/L,t=14.398,P=0.044]、术后3个月[(8.26±1.32)rng/L对(4.58±1.45)rng/L,t=17.569,P=0.008]和术后6个月[(7.04±1.07)rng/L对(3.12±1.28)rng/L,t=21.867,P=0.003]血清hs—CRP水平显著高于无再狭窄组,而术前与术后6个月时血清hs—CRP水平的差值(△hs—CRP)显著低于无再狭窄组[(0.85-I-0.13)mg/L对(4.89±0.94)耻扎,t=16.987,P=0.000]。多变量logistic回归分析显示,Ahs—CRP(优势比2.392,95%可信区间1.538~3.513,P=0.009)和糖尿病(优势比1.840,95%可信区间l_372~2.241,P=0.023)是支架再狭窄的独立危险因素。结论CAS术后12h时血清hs—CRP水平显著升高,随后持续下降。术后6个月时血清hs—CRP下降程度越明显,发生支架内再狭窄的风险越低。
Objective To investigate the dynamic change of serum high sensitive C-reactive protein (hs- CRP) after carotid artery stenting (CAS) and its correlation with in-stent restenosis. Methods The serum hs- CRP levels were determined before procedure, at 12 hours, 7 days, 3 and 6 months after procedure in patients who underwent CAS in the Department of Neurology, Jinling Hospital, Nanjing. Their cerebral angiography was reexamined and whether there was in-stent restenosis after 6 months was observed. Results Eighty-four patients treated with CAS were included in the study. Fifteen (24%) had in-stent restenosis after CAS. The stenosis in 3 of them was 〉 50%, and the stenosis in 12 of them was 30% to 50%. The serum hs-CRP levels in all patients after procedure were significantly higher than those before treatment (all P 〈 0. 01 ), and they were significantly lower at 6 months after procedure than before treatment (all P 〈0. 01). Univariate analysis showed that the proportion of diabetes in the restenosis group was significantly higher than that in the non-restenosis group (P 〈0. 01). At 7 days (8. 83 ± 1.94 mg/L vs. 6. 77±1.63 mg/L, t = 14. 398, P =0. 044), 3 months after procedure (8. 26 ±1.32 mg/L vs. 4. 58 + 1.45 mg/L, t = 17. 569, P = 0. 008) and 6 months after procedure (7. 04±1.07 mg/L vs. 3. 12±1.28 mg/L, t =21. 867, P =0. 003), the serum hs-CRP levels in the restenosisgroup were significantly higher than those in the non-restenosis group, and the difference of the serum hs-CRP level (A hs-CRP) before procedure and at 6 month after procedure was significantly lower than that in the non- restenosis ffoup (0. 85 ±0. 13 mg/L vs. 4. 89±0. 94 mg/L, t = 16. 987, P = 0. 000). Multivariate logistic regression analysis showed that Ahs-CRP (odds ratio [ OR] 2. 392, 95% confidence interval [ CI] 1. 538 - 3. 513; P =0. 009) and diabetes (OR 1. 840, 95% C! 1. 372 -2. 241; P =0. 023) were the risk factors for in- stent restenosis. Conclmiom The serum hs-CRP le