Drug-Eluting Stents : Insights From Invasive Imaging Technologies

概要

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Drug-eluting stents (DES) represent a revolutionary technology in their unique ability to provide both mechanical and biological solutions simultaneously to the target lesion. As a result of biological effects from the pharmacological agents and interaction of DES components with the arterial wall, considerable differences exist between DES and conventional bare metal stents (BMS), yet some of the old lessons learned in the BMS era remain clinically significant. In this context, contrast angiography provides very little information about in vivo device properties and their biomechanical effects on the arterial wall. In contrast, current catheter-based imaging tools, such as intravascular ultrasound, optical coherence tomography, and intracoronary angioscopy can offer unique insights into DES through direct assessment of the device and treated vessel in the clinical setting. This article reviews these insights from current DES with particular focus on performance and safety characteristics as well as discussing an optimal deployment technique, based upon findings obtained through the use of the invasive imaging technologies. (Circ J 2009; 73: 1371 - 1380)
社団法人　日本循環器学会の論文
2009-07-20