Table of Contents
What is proximal LAD artery?
The LAD is made up of a proximal segment, middle segment, and distal segment. The proximal segment contains the first branch of the septal perforator. The middle segment is bordered by the first septal branch and represents the halfway point between the septal branch and the ventricular apex.
Where is the proximal LAD?
In this interim analysis, proximal LAD was defined according to the CASS (Coronary Artery Surgery Study) classification11: end of left main to the first large septal or first diagonal, whichever is more proximal.
What is proximal LAD occlusion?
Proximal occlusion within the left anterior descending (LAD) coronary artery in patients with acute myocardial infarction leads to higher mortality than does nonproximal occlusion. We evaluated an automated program to detect proximal LAD occlusion.
What is RCA in cardiology?
Right coronary artery (RCA). The right coronary artery supplies blood to the right ventricle, the right atrium, and the SA (sinoatrial) and AV (atrioventricular) nodes, which regulate the heart rhythm.
What is proximal RCA?
The segment of the RCA from the ostium to the origin of the first acute marginal artery is usually referred to as the proximal RCA. Dominance refers to whether the posterior descending artery (PDA) originates from the RCA (right dominant), LCx (left dominant), or both (codominant).
What is the meaning of RCA in medical terms?
FMA. 50039. Anatomical terminology. In the blood supply of the heart, the right coronary artery (RCA) is an artery originating above the right cusp of the aortic valve, at the right aortic sinus in the heart.
What does RCA mean in medical terms?
Root cause analysis (RCA) is a tool to help health care organizations retrospectively study events where patient harm or undesired outcomes occurred in order to identify and address the root causes. By understanding the root cause of an event, we can improve patient safety by preventing future harm.
How serious is RCA blockage?
A buildup of plaque can narrow these arteries, decreasing blood flow to your heart. Eventually, the reduced blood flow may cause chest pain (angina), shortness of breath, or other coronary artery disease signs and symptoms. A complete blockage can cause a heart attack.
How important is RCA artery?
The primary task of the right coronary artery is to ensure proper circulation to the myocardium—the muscles of the heart—and, as such, influences the overall functioning of the body. The right coronary artery supplies blood to the right ventricle and atrium of the heart as well as sinoatrial and atrioventricular nodes.
What does RCA dominant mean?
In a right-dominant circulation, the right coronary artery (RCA) supplies the posterior portion of the interventricular septum and gives off the posterior descending artery. This contrasts with a left-dominant circulation, in which the left circumflex (LCX) artery supplies this territory.
What happens when RCA is blocked?
If an artery is substantially blocked, development of collateral circulation (i.e., other smaller vessels) may occur. When this happens, the collateral vessels help to maintain circulation to the area served by the artery in question.