Nakashima Makoto, Ikari Yuji, Aoki Jiro, Tanabe Kengo, Tanimoto Shuzou, Hara Kazuhiro
Division of Cardiology, Mitsui Memorial Hospital, 1 Kanda-Izumi-cho, Chiyoda-ku, Tokyo, 101-8643, Japan,
Cardiovasc Interv Ther. 2015 Jan;30(1):68-71. doi: 10.1007/s12928-014-0251-y. Epub 2014 Feb 18.
A blunt stump-type entry of chronic total occlusion (CTO) is one of the most difficult morphologic features to overcome in percutaneous coronary intervention (PCI), which often requires the guidance of intravascular ultrasound (IVUS) to identify the entry point. However, real-time, IVUS-guided PCI usually requires an 8 Fr guiding catheter. In this report, we describe a successful PCI for blunt stump CTO using bi-radial, IVUS-guided CTO wiring technique. Two 6 Fr guiding catheters (one as an operating guidewire; second for IVUS imaging) were simultaneously inserted into the left coronary artery via bilateral radial arteries. This technique may be useful for CTO intervention.
慢性完全闭塞（CTO）的钝端残端型入口是经皮冠状动脉介入治疗（PCI）中最难克服的形态学特征之一，这通常需要血管内超声（IVUS）引导来确定入口点。然而，实时IVUS引导的PCI通常需要一根8F引导导管。在本报告中，我们描述了一例使用双桡动脉、IVUS引导的CTO导丝技术成功治疗钝端残端CTO的PCI病例。两根6F引导导管（一根作为操作导丝；另一根用于IVUS成像）通过双侧桡动脉同时插入左冠状动脉。该技术可能对CTO介入治疗有用。
