Previous studies suggested that pre‐treatment of coronary artery calcification (CAC) with rotational atherectomy (RA) prior to stent deployment improved procedural success but was not associated with a concomitant improvement in clinical outcomes. Orbital atherectomy (OA) has demonstrated similar benefits, though there are few data comparing the safety and efficacy of the two modalities.

中文翻译：

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旋转和眶内旋切术治疗冠状动脉钙化病变的比较：来自 VA 临床评估报告和跟踪 (CART) 计划的见解

先前的研究表明，在支架置入前用旋磨术 (RA) 对冠状动脉钙化 (CAC) 进行预处理可提高手术成功率，但与临床结果的相应改善无关。尽管很少有数据比较两种方式的安全性和有效性，但眼眶斑块切除术 (OA) 已显示出类似的益处。