Acute complete occlusion of the middle anterior descending branch may lead to a decrease in cardiac function and even sudden death, while chronic occlusion has a relatively minor effect on cardiac function.
Acute complete occlusion of the middle anterior descending branch can lead to acute ischemia of the coronary arteries, resulting in necrosis of the anterior wall myocardium, which is manifested by intense chest pain, and if the treatment is not timely, extensive myocardial necrosis may occur, and cardiac insufficiency may occur, which is manifested by the symptom of wheezing, and there is even a risk of sudden death.
If there is chronic complete occlusion of the middle anterior descending branch, there will be collateral circulation of the echogenic branch, the right coronary artery and branches of the anterior descending branch to ensure the blood supply of the anterior wall, and there will be a certain decline in cardiac function, but severe cardiac failure will seldom occur.
Complete occlusion of the middle part of the anterior descending branch should be treated formally under the guidance of physicians, and surgery can be performed to improve the blood supply of the anterior descending branch if necessary.