Illusive Sub-Endocardial Infarcts

For this myocardial infarction, the right coronary artery was blocked. The parts of the heart that were affected by this blockage was the right atrium, the right ventricle, the interventricular septum, the Sinoatrial node and the AV node, and some parts of the left atrium and ventricle. These parts were affected because the right coronary artery supplies blood to these parts of the heart; since there was a blockage the blood was not able to continue through the right coronary arteries into its branches, which are the sinoatrial nodal artery, the right marginal branch, the posterior interventricular branch, and the atrioventricular nodal artery (Gest).

    Ischemia- local decrease in blood supply    Infarction- death & deterioration of tissue resulting from lack of blood supply.

e) Myocardial infarction: Myocardial infarction is a heart attack. “Myocardial infarction occurs when blood supply to a part of the myocardium is interrupted. This can be caused by a lack of blood flow, obstruction by a clot, or a rupture of plaque build up.”

Alike all muscle in the body the heart requires its own constant supply of oxygen and nutrients. Out of three coronary arteries, large two and branching arteries supply oxygenated blood to the cardiac muscle. Any sudden block of these arteries or its branches causes starvation of heart from oxygen and this condition called “cardiac ischemia”. When myocardial ischemia exceeds a critical inception and overthrows cardiac cellular repair mechanisms deliberate to maintain normal operating function and homeostasis. Ischemia at this critical limit for prolonged period causes permanent cardiac cell injury or

During my Cath lab rotation, I followed the Cath Lab personnel to the ED after a cardiac code was called. We transferred the patient with a ST-Elevation Myocardial Infarction (STEMI) to the Cath Lab to perform an angioplasty in which it had to be done within 90 min to prevent any more complications such as cardiac arrest. The patient arrived via ambulance and he did not have any family with him. Once we arrived to the Cath Lab I observed the procedure and the team at work. There were a lot of consequences during the surgery he was close to coding and required to be intubated and ventilated. The physician inserted a PICC line due to his decreased perfusion. After,

This paper will critique a quantitative research study (Lesnecki, 2010) that examined influences of individuals that delayed seeking treatment during an acute myocardial infarction (AMI). The article examined psychosocial and environmental influences that may have played a role for the period of AMI symptom onset to actually obtaining medical treatment. The research study will be reviewed looking at background, study purpose, design and methodology, data analysis, results, discussion, limitations, and applications for nursing practice.

The main cause of myocardial infarction is the occlusion of the coronary artery, due to the sudden rupture of an atherosclerotic plaque leading to the formation of a blood clot (coronary thrombosis). The formation of plaque is the result of damage to the endothelium layer of cells, caused by high blood pressure, smoking, or high cholesterol. Over time, an accumulation of cholesterol in the artery wall becomes plaque (Beckerman, 2016). This event can also trigger coronary vasospasm, causing constriction of blood vessels, resulting in severe hypertension. If a vessel is fully occluded, an insufficient amount of oxygen results in tissue death. The damaged tissue is comprised of both a necrotic core and a marginal zone consisting of hypoxic tissue that may generate arrhythmias, abnormal heart rhythms. Infarcted tissue can alter ventricular systolic and diastolic function and disrupt electrical activity within the heart. Inevitably, this tissue forms a fibrotic scar. Long-term consequences include ventricular failure, ventricular remodeling of the remaining myocardium, or sudden death (Klabunde, 2007).

While catheter ablation to terminate ventricular tachycardia (VT) due to myocardial infarction (MI) has been shown to be a promising therapy, the technique’s 30\% failure rate in treating patients has prevented the widespread adoption of the procedure. Recent studies have speculated that the high failure rate could be due to the inadequacy of point-by-point endocardial mapping techniques to detect the complex 3D reentrant pathways arising from the infarct at a sufficiently high resolution. There is an urgent need for new methodologies that can accurately identify post-infarction reentrant sites thereby improving ablation targeting and the efficacy of the therapy.

disease. Myocardium is the heart muscles. It's getting it's oxygen and nutrients through the coronary

Our body system is not immune to pathological deficiencies. There exist numerous identified pathologies which compromise the regular functioning of a heart, but all heart-related pathologies are narrowed to a single condition known as Acute Coronary Syndrome (ACS). This is the term properly used in reference to the different identified clinical entities threatening the cardiovascular system. ACS is the result of the progressive or complete sudden blocking of the arteries or veins; this prevents an appropriate blood flow through the circulatory system, and as a consequence, the body is unable to receive enough oxygen and nutrients to meet its daily necessities.

Myocardial Infarction is more commonly known as a heart attack. When Myocardial Infarction occurs, a coronary artery is clogged, which takes blood supply from the heart, and causes the death of heart muscle. Myocardial Infarction can be caused by many things, including an unhealthy diet, lack of exercise, excessive smoking or drinking, or the use of recreational drugs. It can also be caused by existing heart diseases, when they are not treated properly. The symptoms include, shortness of breath, nausea, sweating, anxiety, and extreme chest pain. There are multiple tests that can be done to figure out if a patient has experienced Myocardial Infarction, such as a chest x-ray, an electrocardiogram (a test of the heart's activity), or an echocardiogram.

Heart attacks , we have all seen them played out on our favorite drama shows but these shows do not address the real severity of an actual heart attack despite the great acting skills portrayed . A heart attack can also be known as a myocardial infarction (MI), acute myocardial infarction (AMI), acute coronary syndrome, coronary thrombosis, or coronary occlusion, either way it is not good news. Over 1.2 million people in American have heart attacks with many of them resulting in death (Heart attack, 2011). A heart attack is a serious life threatening condition that needs to be treated quickly.

They occur as a result of an imbalance between the demand for oxygen and its supply by the coronary arteries. Indeed, MI’s can occur as a result of complications with anemia and heart spasms. However, the main cause of the condition is produced as a result of atheroma.

The focus of the group’s work is to examine the link between the prompt diagnosis and treatment of individuals experiencing an acute myocardial infarction (MI) and how it increases their chance of survival. Approximately 500,000 individuals per year experience a ST-elevated myocardial infarction (STEMI) and a considerable amount of these individuals include fatalities that occur within 120 minutes (Hagen, 2009). The amount of time from the onset of symptoms to reperfusion time is vital when evaluating the rates of morbidity and mortality by treatment means of angioplasty or a thrombolytic agent to the culprit artery. The significance of the problem was evaluated by analyzing the PICOT question: Among adults suspected of experiencing a ST-Elevated Myocardial Infarction (STEMI), do those who arrive by Emergency Medical Services (EMS) compared to those who transport themselves to the hospital, decrease the time between the onset of symptoms and arterial reperfusion? The articles that correlated to the group topic were “Use of Emergency Medical Service Transport

Myocardial Infarction (MI); heart attack affected Circulatory system, the sudden passing of heart muscle due to limited stream of oxygenated blood to the heart muscle; characterized by strongly chest pain, sweating, shortness of breath, or some of the time none of these symptoms. Myocardial areas of dead tissue, superior known as heart attack happen when there are interferences within the blood supplies to the heart and pumps blood from the heart to other vital organs. The heart is an exceedingly specialized muscle whose work is to pump life-sustaining blood to all parts of the body. Its activity includes creating weight to impel blood through arriving and leaving channels veins and arteries that must keep up that weight