s operative candidacy, there are several cardiac features that are important -- coronary
artery disease, heart failure, arrhythmias,
and valve disease. Usually, we are looking to see if any of them are unstable or not optimally managed. Recent heart attack or chest pain that hasn't been assessed/managed would be a reason to postpone surgery. Decompensated heart failure, meaning severe or worsening symptoms, volume overload, or even a new diagnosis would be a reason to postpone surgery.