自制新型血管内超声双腔微导管引导下行慢性完全闭塞病变介入治疗

处理入口不明的慢性完全闭塞病变(CTO)可借助血管内超声,但反复交换微导管和超声导管可能增加操作相关并发症。解放军白求恩国际和平医院自主研发的新型血管内超声双腔微导管,由血管内超声导管以及与其并联为一体的治疗微导管构成,超声导管和工作导丝同步进入病变部位,相当于在血管内超声实时探查下进行直接定位操作,有助于正确把握穿刺方向,为介入医师进行慢性闭塞病变的治疗增添了新工具。在此基础上,本文通过结合1例应用此新型血管内超声双腔微导管成功治疗入口闭塞的CTO病变经验,为读者提供更为直观的认识。

A novice intravascular ultrasound double-lumen microcatheter for percutaneous coronary intervention in chronic total occlusions

Intravascular ultrasound has been used in the treatment of chronic total occlusion (CTO) lesions with unknown entrance, but repeated alteration between microcatheter and ultrasound catheter may increase operation-associated complications. Independently developed by the Bethune International Peace Hospital, a new intravascular ultrasound dual-lumen microcatheter consists of an intravascular ultrasound catheter and a parallel therapeutic microcatheter. The ultrasound catheter and working wire are inserted synchronously into the lesion, enabling operation at the precise location with the real-time exploration of intravascular ultrasound. The modified device provides the interventionist with a new tool for the chronic occlusive lesions with enhanced precision in puncture. Hereby, we present one case of CTO lesions treated successfully using this new intravascular ultrasound double-lumen microcatheter, helping the readers to have a more intuitive understanding of the new technology.