Waldmann Elisa, Parhofer Klaus G
Medical Department II-Grosshadern, Ludwig Maximilians University Munich, Munich, Germany.
Medical Department II-Grosshadern, Ludwig Maximilians University Munich, Munich, Germany.
J Lipid Res. 2016 Oct;57(10):1751-1757. doi: 10.1194/jlr.R056549. Epub 2016 Feb 17.
An elevated plasma concentration of lipoprotein (a) [Lp(a)] is an independent risk factor for cardiovascular disease. Life style modification and currently available drugs either fail to effectively lower plasma Lp(a) levels or do not result in clinical benefit. However, lipoprotein apheresis is very efficient in decreasing Lp(a) concentrations. A single apheresis session can acutely decrease Lp(a) by approximately 60-75%, and apheresis performed weekly or biweekly results in considerably decreased mean interval concentrations (approximately 25-40% reduction). While most apheresis systems (heparin-induced extracorporeal LDL precipitation, direct adsorption of lipoproteins, lipoprotein apheresis with dextran-sulfate, lipid filtration, immunoadsorption) decrease LDL and Lp(a), Lipopac is specific and only decreases Lp(a). Lp(a) apheresis is expensive and time consuming, but associated with very few side effects. Two randomized controlled trials give conflicting consults with respect to the effect on angiographic changes. Retrospective analyses indicate that regular apheresis translates into clinical benefit in patients with elevated Lp(a), but adequate randomized controlled trials are lacking.
血浆脂蛋白(a)[Lp(a)]浓度升高是心血管疾病的独立危险因素。生活方式的改变和目前可用的药物要么无法有效降低血浆Lp(a)水平,要么没有临床益处。然而,脂蛋白分离术在降低Lp(a)浓度方面非常有效。单次分离术可使Lp(a)急性降低约60-75%,每周或每两周进行一次分离术可使平均间隔浓度大幅降低(约降低25-40%)。虽然大多数分离术系统(肝素诱导的体外低密度脂蛋白沉淀、脂蛋白直接吸附、硫酸葡聚糖脂蛋白分离术、脂质过滤、免疫吸附)可降低低密度脂蛋白和Lp(a),但Lipopac具有特异性,仅降低Lp(a)。Lp(a)分离术昂贵且耗时,但副作用极少。两项随机对照试验在血管造影变化的影响方面给出了相互矛盾的建议。回顾性分析表明,定期进行分离术对Lp(a)升高的患者有临床益处,但缺乏充分的随机对照试验。
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