An electrocardiograph records the electrical activity of the heart from the surface of the body. The recorded graph is called an electrocardiogram (ECG).
Pannus is the ingrowth of fibrous tissue into the valve apparatus of prosthetic valves, causing valve dysfunction and increasing transvalvular gradients.
Better to use an undersized stent than an oversized stent for SVG intervention. Distal overhang of the stent is required to reduce distal embolization.