Myocardial infarction

Understanding the pathophysiology of a myocardial infarction begins with atherosclerosis, the main contributor to MI. “Atherosclerosis a common disorder characterized by yellowish plaques of cholesterol, other lipids, and cellular debris in the inner layers of the walls of arteries (Mosby, 2013, pg.153).” Fatty deposits (lipids) are circulating through the blood and become stuck to the artery walls, due to an injury in the endothelial lining of the blood vessel. After some time, the build up of plaque activates the body’s inflammatory process. Macrophages are sent to clean up the debris however if there is a high amount of lipids, the macrophages become enlarged and are not able to leak through the capillary bed via vascular permeability.…

Globally and within the United States, myocardial infarctions are a concerning health problem. There is work being done to prevent and catch myocardial infarctions early, such as studying the influenza vaccine for prevention, and the Million Hearts Initiative. There can be a reduction in the number of myocardial infarctions occurring every year, through the proper teaching by and to providers, interventions to reduce the risk of having a myocardial infarction, and by researching new preventive…

Pathophysiology Myocardial infarction, or heart attack, is most commonly caused by atherosclerosis, a condition in which fibrinous plaques, called atheromas, develop within the walls of the arteries, impairing the flow of blood. High levels of low-density lipoprotein (LDL), a component of cholesterol, are a major contributor to the formation of atheromas. A myocardial infarction occurs when a plaque completely occludes a coronary artery, or when an emboli travels to the coronary artery.…

Introduction According to the American Heart Association, heart disease accounts for more than 17.3 million deaths a year and this number is expected to grow to more than 23.6 million in 2030. There are several types of heart disease, one of them being acute myocardial infarction also known as heart attack. Myocardial infarction is the damaging or death of an area of the heart muscle caused by blockage in the blood supply of that area. Myocardial infarction happens when the arteries become…

The leading cause of death for men and women in the UK is heart disease, for example, coronary heart disease, heart attack and congestive heart failure(2). The most common heart disease is heart attack(2). The medical terminology of heart attack is myocardial infarction (MI)(1). In myocardial, the term myo means muscle; cardio refers to the heart; and the suffix ‘al’ means pertaining to, and infarction means death of tissue due to lack of blood supply(1). heart attack is a serious heart disease…

Myocardial infarction (MI), also known as heart attack, occurs when there is a complete occlusion of a coronary artery that causes ischaemia and death to the muscles in an area of the heart. In 2014/2015, MI was the main cause of 54,000 hospitalisations in Australia. Additionally, it is estimated that over 400, 000 Australian have suffered a heart attack at one point in their lives. In general, men are more at risk of MI than women. Also, men tend to experience MI almost 10 years earlier…

Myocardial Infarction (MI) commonly known as heart attack occur when blood supply is interrupted, causing damage or death of the heart cells. What causes the heart muscle to lose its blood supply? Usually, the loss of the heart's blood supply is caused by the total blockage of a coronary artery by a blood clot on a cholesterol plaque in the artery. Cholesterol is a fatty chemical which is a part of the outer lining of cells in the body. Cholesterol plaque is the formation of a hard substance…

The patient was admitted into a small, rural hospital at 1900 for an ongoing complaint of unrelieved indigestion. The patient, 48 year old male has a history of and is presently involved with smoking. After admission into the hospital it is ruled out that the patient underwent a rule out myocardial infarction with further testing involving a cardiac catheterization to be done after admission upon a separate medical center. The patient also presents to the hospital with a history of a high-fat…

Mr. Canton displayed early onset symptoms of an acute myocardial infarction according to the nurse’s assessment and an EKG that presented ST elevation. As shown on the EKG, elevation is a sign of immediate concern resulting from depolarization and repolarizing of the left ventricle. “Plaque progression, disruption, and clot formation are the same for myocardial infarction as they are for angina” (Understanding Pathophysiology, 2016, p. 620). Myocardial Infarction In early stages of congestive…

Heart attack is medically known as myocardial infarction (MI) and normally happens when the heart muscle is starved of oxygen-rich blood, causing damage to the heart muscle (British heart Foundation, 2014). According to NICE guidelines (2014) heart attacks are mostly caused by coronary heart disease (CHD). CHD is when coronary arteries that supply the heart muscle with oxygen-rich blood become narrowed by a gradual build-up of fatty material within their walls. Heart attack is known to be common…