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目的 总结Kiwami导管在冠状动脉重度钙化病变经皮冠状动脉介入（PCI）治疗中的使用经验。方法 44例冠状动脉重度钙化病变患者在PCI手术中使用4F Kiwami导管进行支架置入。回顾性分析这些患者的临床及影像资料，并收集手术结果、术中并发症以及主要不良心血管（MACE）事件。结果 其中43例（98%）患者通过Kiwami导管成功置入支架，并达到造影成功标准，1例（2%）患者因球囊扩张后夹层扩展至血管远段未能植入支架。所有患者手术过程中均未发生冠脉穿孔、血管急性闭塞、支架脱载等严重介入并发症。住院期间及随访期内所有患者均未发生MACE。结论 Kiwami导管操作简便，易于通过钙化病变，安全性好，成功率高。
Objective To summarize the experience of Kiwami catheter in the treatment of patients with severe coronary artery disease undergoing percutaneous coronary intervention (PCI). Methods Forty-four patients with severe coronary artery disease underwent PCI with 4F Kiwami catheter. The clinical and imaging data of these patients were retrospectively analyzed and the surgical results, intraoperative complications, and major adverse cardiovascular events (MACE) were collected. RESULTS: Forty-three patients (98%) were successfully placed in the stent through the Kiwami catheter and achieved the success criteria of angiography. One patient (2%) was unable to be implanted into the stent due to the extension of the balloon to the distal segment of the vessel. All patients had no serious complications such as perforation of coronary artery, acute occlusion of blood vessel and detachment of stent during operation. MACE did not occur in all patients during hospitalization and follow-up. Conclusions The Kiwami catheter is easy to operate and easy to pass calcified lesions with good safety and high success rate.