Most operations are very simple and straightforward.
The simplest is removal. If you have a stomach ulcer, remove it; if you have a gallstone, remove it; if you have a tumor, remove it!
The concept of a bypass is a little more complicated, but the idea is clear. You can drive a viaduct to increase blood flow.
However, the process of the surgery was much more complicated.
In this, the access path was a path that would not cause any harm to the human body, so that the patient could reach the focus area while he was still alive.
In the medieval times, western surgeries were in pursuit of speed. They hoped to complete the surgery before the patient bled to death.
Now that there were various life-sustaining technologies, it was natural that the surgery could be a little easier. However, the heart surgery department’s surgery involved extracorporeal circulation, so the pursuit of speed was once again brought up.