新一代准分子激光斑块消蚀技术应用于球囊治疗失败的复杂冠脉病变的初步尝试

Preliminary trial of excimer laser coronary atherectomy in managing complicated coronary lesions

摘要: 目的：探讨新一代准分子激光斑块消蚀技术（ELCA）治疗复杂冠脉病变的可行性和安全性。方法：收集2例球囊治疗失败的复杂冠脉病变患者，其中1例为球囊无法通过病变，另1例为球囊不能充分扩张病变。借助于ELCA技术，以能量40～60 mJ/mm2、频率30～40次/s为技术参数对复杂冠脉病变处的斑块进行消蚀2～4次，耗时不超过10 min。结果：ELCA导管均能顺利通过病变，球囊均能充分扩张并植入支架，完成再血管化，2例患者均未出现任何并发症。结论：新一代ELCA技术具有操作简单、疗效确切的特点，可作为治疗复杂冠脉病变新的选择。

Abstract: Objective：To evaluate both feasibility and safety of excimer laser coronary atherectomy (ELCA) in managing complicated coronary lesions. Methods：Two patients with complicated coronary lesions, which could not be treated by balloon, underwent ELCA. Two technical parameters were selected with 40-60mJ/mm2, 30-40 pulses/s of frequency. The coronary plaque was treated 2-4 times by ELCA, which took no more than 10 minutes. Results：With the ELCA catheter gone through both lesions, the balloons dilated completely and stents implanted, both patients achieved the revascularization without any complications. Conclusions：ELCA is easy to operate with good effect, which can be a new choice for patients with complicated coronary lesions.