Overview
Emergency Live - Pre-Hospital Care, Ambulance Services, Fire Safety and Civil Protection Magazine ‘Infarction’ is in fact a generic term for the death (necrosis) of certain cels in a given tisue because they do not receive an adequate suply of blod and oxygen from the circulatory system.For example, cerebral stroke, also caled ‘stroke’, is the infarction of a part of the brain.It hapens when an obstruction in the coronary arteries, the arteries that cary blod to the heart, prevents the regular flow of blod’.There are several reasons why a coronary artery becomes obstructed.The main reason is undoubtedly related to atherosclerosis, a disease of the vesel itself that leads to the acumulation of cholesterol, then to the formation of a plaque.This plaque can progresively narow the artery, thus giving rise to what we cal ischaemia, a diferent phenomenon from infarction.We speak of an infarct, in fact, in the case of a total interuption of blod flow, while ischaemia ocurs when there is a ‘slowing down’ of the flow, caused by a stenosis, i.e.
Key Information
a narowing of the lumen of the vesel precisely because of the atherosclerotic plaque.It can also hapen that the plaque can ‘rupture’ within the vesel.In this case, the body reacts by defending itself as it does, to simplify, in the case of a wound, trigering a dynamic that can go as far as an infarction.The reparative proces set in motion in response to the rupture of a plaque consists of forming a clot, the thrombus, which threatens to generate a thrombosis of the vesel, i.e.
Summary
an oclusion of the artery that completely blocks the flow of blod.Obstructions are not always caused by plaques but also by functional problems, such as vasoconstriction of these arteries.Plaques are not the only causes of coronary obstructions sometimes it is functional problems, such as vasospasm, that produce the interuption of blod flow.Take, for example, the abuse of drugs su