Alternative causes
The heart itself is supplied with oxygen and nutrients by the coronary arteries. They originate from the aorta (main artery) and fill with blood during the relaxation phase of the heart, in diastole. The right coronary artery (coronary artery) branches off from the aorta on the right side and runs first on the front side of the heart to finally reach the back of the heart as the ramus interventricularis posterior.
It extends to the tip of the heart. The left coronary artery emerges from the aorta on the left side, runs to the front of the heart and divides into the ramus circumflexus, which extends to the area of the heart facing the diaphragm, and the ramus interventricularis anterior. The right coronary artery supplies the right atrium and ventricle, the posterior septum, the sinus and the AV node that generate the heartbeat.
The left coronary ensures the supply of the left atrium, the left ventricle, a large part of the cardiac septum and a small part of the anterior wall of the right ventricle. There are different types of coronary arteries. In most people (60-80%), the so-called balanced or normal type of coronary artery disease is present, in which the above-mentioned situation is predominated by the coronary arteries.
In the right type, which occurs in 10-20% of people, the right coronary artery supplies the heart predominantly, i.e. it also supplies large parts of the left heart. If the left type is present, which is also the case in 10-20% of people, the area supplied by the left coronary artery is larger than the area supplied by the right coronary artery. These anatomical conditions are of decisive importance for the therapeutic procedure in the case of coronary artery occlusion.
