What is a triple heart bypass surgery?

3 coronaries bypasse. The heart, in general has 3 major arteries ( left anterior, circumflex and right) but there can be a lot of variation and branches like highways and streets to get the blood traffic distributed. We bypass those with wrecks- stenosis obstructions . 3-4 is common on the average. More is possible depending on the anatomy and disease.
3 bypasses. Triple heart bypass refers to 3 bypass grafts ( tubes ) placed to deliver blood downstream of diseased ( occluded ) heart arteries. Usually refers to 3 vein bypass grafts.