Clinical Observation of Excimer Laser Coronary Atherectomy in the Treatment of Complex Coronary Artery Lesions
Objective To investigate the safety and efficacy of excimer laser coronary atherectomy(ELCA)in the treatment of complex coronary artery lesions.Methods Fifty cases(53 lesions)of complex coronary artery lesions treated with ELCA in our hospital from May 2018 to August 2023 were retrospectively analyzed to observe the efficacy and safety of ELCA.Regular follow-up was conducted post-surgery to monitor major adverse cardiovascular and cerebrovascular events(MAC-CEs).Results Of the 53 lesions,4 lesions were severely calcified,and a 0.9 mm laser catheter could not pass through,re-sulting in a success rate of 92.5%(49/53)for ELCA treatment.Post-ELCA,one lesion had severe dissection of the target vessel,and two lesions had residual stenosis of＞30%.The immediate success rate of PCI surgery was 86.8%(46/53).Within 24 hours post-surgery,one patient experienced acute intrastent thrombosis,which was resolved after emergency thrombus aspiration,and no other complications occurred during the perioperative period.During the follow-up period of 7(range:5-10)months post-surgery,one patient died due to acute cerebral infarction in the first week post-surgery,while the remaining patients did not experience major adverse cardiovascular and cerebrovascular events.Conclusion ELCA is a safe and effective interventional method for treating high-resistance complex coronary artery lesions.
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