100.39 Use of Coronary Lithoplasty and Rotational Atherectomy for the Treatment of Stent Underexpansion

The presence of severe coronary artery calcification (CAC) is associated with major adverse cardiac events (MACE). It is a major cause of stent underexpansion and subsequent in-stent restenosis (ISR), especially if the degree of CAC is underappreciated prior to the deployment of the stents. Use of