Orbital atherectomy versus rotational atherectomy: A systematic review and meta-analysis.

Coronary artery calcification is associated with poor outcomes in patients undergoing percutaneous coronary intervention (PCI). Atheroablative techniques such as orbital atherectomy (OA) and rotational atherectomy (RA) are routinely utilized to treat these calcified lesions in order to optimize lesion preparation and facilitate stent delivery.