To the Editor Dr Hong and colleagues1 reported the results from the IVUS-XPL trial on the effect of IVUS-guided vs angiography-guided everolimus-eluting stent implantation. The rate of major adverse cardiac events was lower in the IVUS-guided group vs the angiographic group, with lower rates of target vessel revascularization but not death or myocardial infarction. Ischemia-driven revascularizations were measured with quantitative coronary angiography and defined as a diameter stenosis of 50% plus symptoms or a diameter stenosis of greater than 70% irrespective of symptoms.
Steinvil A, Waksman R, Garcia-Garcia HM. Ultrasound vs Angiography for Drug-Eluting Stent Implantation. JAMA. 2016;315(22):2469. doi:10.1001/jama.2016.1371