“心梗”高峰将至 牢记7句“护心”忠告

在我国的大部分地区,11月份已是深秋时节,随着气温逐渐下降和昼夜温差不断扩大,急性心肌梗死的发病率也呈不断上升趋势。心内科专家提醒：有冠心病、高血压、糖尿病、血脂异常、肥胖。冠心病家族史．吸烟和饮酒等心肌梗死易患因素者在秋冬季节一定要关注自己的身体状况,提防心肌梗死“偷袭”。     

血管内超声评价雷帕霉素洗脱支架再狭窄及早期血栓形成

Objective To identify underlying mechanical risk factors of that developed in-stent restenosis (ISR) or early stent thrombosis in sirolimus-eluting stent (SES)-treated lesions using intravascular ultrasound (IVUS). Methods IVUS were performed in 60 (ISR, n = 43; early stent thrombosis, n = 17) patients (event group) and in 34 patients without ISR and early stent thrombosis (noevent group) underwent SES implantations. Results Compared with the no-event group, minimum stent area [MSA, (4.6±1.6) mm2 vs. (5.8±1.6) mm2, P ＜0.01], minimum stent diameter [(2.2±0.5) mm vs. (2.5±0.4) mm, P＜0.01],andstentexpansion[(69.2±20.7)% vs. (80.6±17.2)%,P＜ 0.01] were significantly smaller, and longitudinal stent symmetry index (MSA/maximum stent area, 2.0±0.6 vs. 1.7±0.6, P ＜ 0.05) was significantly larger in the event group. Incidence of MSA ＜ 4.0 mm2(43.3% vs. 14.7%, P ＜0.01) and stent expansion ＜60% (40.7% vs. 11.8%, P ＜0.01) were more frequent in the event group than that in no-event group. Furthermore, proximal residual plaque burden was significantly higher compared to the no-event group [(49.0±15.5) % vs. (38.4±17.6) %, P ＜ 0.01]. Independent predictors of post SES 1SR or early thrombosis were MSA (OR:0.7, 95% CI:0.5-0.8, P ＜ 0.01) and proximal residual plaque burden (OR:280.7, 95% CI: 17.2-40 583.6, P ＜ 0.01). Conclusion Smaller MSA and higher proximal residual plaque burden are independent predictors of ISR or early thrombosis post SES implantations.     

药物洗脱支架术后冠状动脉瘤样扩张伴极晚期(近5年)支架内血栓形成一例

1 病例资料 患者男性,63岁,2006年5月因胸痛于我院行冠状动脉造影示：左前降支近段至中段弥漫狭窄,最狭窄处达90%,回旋支、右冠状动脉无明显狭窄.于前降支近段至中段串联置入Cypher 3.5×18.0 mm支架（14 atm×10 s扩张释放）及Cypher 3.5×33.0 mm支架（16 atm×10 s扩张释放）各1枚.     

冠状动脉性心脏病患者外周血中CD144+/Annexin V+ 内皮微颗粒水平的变化

目的测定冠状动脉性心脏病患者外周血内皮微颗粒的水平,研究其与各种临床指标的相关性,探讨CD144+/Annexin V+内皮微颗粒与冠状动脉性心脏病患者发生急性缺血事件的关系。方法经冠状动脉造影确诊的冠状动脉性心脏病患者81例,根据临床症状、心电图及超敏肌钙蛋白结果将患者分为急性冠状动脉综合征组(A组,51例)和稳定型心绞痛组(B组,30例)。采用流式细胞术检测两组患者外周血中CD144+/Annexin V+的内皮微颗粒的水平,评估CD144+/Annexin V+内皮微颗粒与年龄、心率、血压、血脂、血糖、炎性指标、心肌标志物等各临床指标之间的相关性。结果与B组相比,A组的外周血CD144+/AnnexinV+内皮微颗粒的水平显著升高(P<0.01)。CD144+/Annexin V+内皮微颗粒的水平与脂蛋白a(r=0.886)、超敏C反应蛋白(r=0.404)、肌酸激酶同工酶(r=0.471)和超敏肌钙蛋白(r=0.240)均呈正相关(P值分别<0.01、0.05),与年龄、心率、收缩压、舒张压、脉压差、空腹血糖、餐后2h血糖、糖化血红蛋白、总胆固醇、三酰甘油、高密度脂蛋白胆固醇、低密度脂蛋白胆固醇均不相关(P值均>0.05)。结论外周血CD144+/AnnexinV+内皮微颗粒的水平与脂蛋白a、超敏C反应蛋白、肌酸激酶同工酶、超敏肌钙蛋白有关,对于评价冠状动脉性心脏病高危状态具有较好的价值。     

2008年冠心病介入治疗年度盘点

冠心病介入治疗的发展日新月异。现在将2008年冠心病介入治疗的热点问题和重要进展进行盘点，希望对临床实践有启发和指导。