Rajamannan Nalini M
Division of Cardiology and Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA.
Arterioscler Thromb Vasc Biol. 2009 Feb;29(2):162-8. doi: 10.1161/ATVBAHA.107.156752. Epub 2008 Nov 20.
Calcific aortic stenosis is the most common indication for surgical valve replacement in the United States. For years this disease has been described as a passive degenerative process during which serum calcium attaches to the valve surface and binds to the leaflet to form nodules. Therefore, surgical treatment of this disease has been the approach toward relieving outflow obstruction in these patients. Recent studies demonstrate an association between atherosclerosis and its risk factors for aortic valve disease. In 2008, there are increasing number of epidemiology and experimental studies to provide evidence that this disease process is not a passive phenomena. There is an active cellular process that develops within the valve leaflet and causes a regulated bone formation to develop. If the atherosclerotic hypothesis is important in the initiation of aortic stenosis, then treatments used in slowing the progression of atherosclerosis may be effective in patients with aortic valve disease. This review will discuss the pathogenesis and the potential for medical therapy in the management of patients with calcific aortic stenosis by examining the lessons provided from the experimental research.
钙化性主动脉瓣狭窄是美国外科瓣膜置换最常见的适应症。多年来,这种疾病一直被描述为一种被动的退行性过程,在此过程中血清钙附着在瓣膜表面并与瓣叶结合形成结节。因此,这种疾病的外科治疗一直是缓解这些患者流出道梗阻的方法。最近的研究表明动脉粥样硬化及其危险因素与主动脉瓣疾病之间存在关联。2008年,越来越多的流行病学和实验研究提供证据表明,这个疾病过程并非被动现象。在瓣叶内会发生一个活跃的细胞过程,并导致有规律的骨形成。如果动脉粥样硬化假说在主动脉瓣狭窄的发病中很重要,那么用于减缓动脉粥样硬化进展的治疗方法可能对主动脉瓣疾病患者有效。本综述将通过研究实验研究提供的经验教训,讨论钙化性主动脉瓣狭窄患者管理中的发病机制和药物治疗潜力。