因严重钙化斑块导致支架扩张不全的病变中的旋磨术（支架消蚀术）
Rotational atherectomy (stentablation) in a lesion with stent underexpansion due to heavily calcified plaque.
作者信息
Kobayashi Y, Teirstein P, Linnemeier T, Stone G, Leon M, Moses J
机构信息
Lenox Hill Heart and Vascular Institute, New York, New York 10021, USA.
出版信息
Catheter Cardiovasc Interv. 2001 Feb;52(2):208-11. doi: 10.1002/1522-726x(200102)52:2<208::aid-ccd1049>3.0.co;2-h.
We report treatment of a lesion with coronary stent underexpansion due to heavily calcified plaque. Conventional balloon angioplasty was attempted for in-stent restenosis, but the lesion was undilatable despite 25-atm inflation pressure. Intravascular ultrasound (IVUS) revealed stent underexpansion due to heavily calcified plaque. Rotational atherectomy was performed using a stepped burr approach, after which repeat IVUS revealed marked ablation of the stent-calcium complex. Adjunctive balloon angioplasty then easily resulted in full balloon and stent expansion, with an excellent angiographic and IVUS result. The patient's hospital course was uneventful.
我们报告了一例因严重钙化斑块导致冠状动脉支架扩张不足的病变的治疗情况。针对支架内再狭窄尝试了传统球囊血管成形术，但尽管球囊膨胀压力达到25个大气压，病变仍无法扩张。血管内超声（IVUS）显示由于严重钙化斑块导致支架扩张不足。采用阶梯式磨头方法进行了旋磨术，之后重复IVUS显示支架-钙复合物明显消融。随后辅助球囊血管成形术轻松实现了球囊和支架的完全扩张，血管造影和IVUS结果极佳。患者的住院过程顺利。
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