High Risk Optical Coherence Tomography Findings in a Case of Coronary Perforation Following Orbital Atherectomy.

Coronary perforation (CP) is an uncommon but serious complication of orbital atherectomy (OA). Optical coherence tomography (OCT) evidence of catheter "tenting" against the healthy vessel wall may indicate unsatisfactory guidewire bias and elevated perforation risk during OA. We describe OCT findings of a case with OA-related CP.