The annual American Heart Association's Scientific Sessions saw some significant findings, with the results of the International Study of Comparative Health Effectiveness with Medical and Invasive Approaches (ISCHEMIA) trial standing out in particular. Of note, investigators found no evidence that invasive procedures – such as stent implants or bypass surgery – in individuals with severe but stable heart disease had lower rates of major, disease-related events vs. those treated with medications and lifestyle changes alone, also known as optimal medical therapy (OMT).