Myocardial Infarction PPT Download Free

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Myocardial Infarction PPT Free Download. Get paper presentation about Classification, Causes, Risk factors and more on Myocardial Infarction PPT.

What is Myocardial Infarction?

Myocardial infarction (MI) or acute myocardial infarction (AMI), commonly known as a heart attack, results from the interruption of blood supply to a part of the heart, causing heart cells to die. This is most commonly due to occlusion (blockage) of a coronary artery following the rupture of a vulnerable atherosclerotic plaque, which is an unstable collection of lipids (cholesterol and fatty acids) and white blood cells (especially macrophages) in the wall of an artery. The resulting ischemia (restriction in blood supply) and ensuing oxygen shortage, if left untreated for a sufficient period of time, can cause damage or death (infarction) of heart muscle tissue (myocardium).

Classification

Acute coronary syndromes include

  • ST-elevation MI (STEMI)
  • Non ST-elevation MI ( NSTEMI)
  • Unstable Angina

Cardiac markers in circulation indicates myocardial infarction and help categorize MI and is a useful adjunct to diagnosis
Anatomic or morphologic

  • Transmural= Full thickness
  • Non-transmural= Partial thickness

ECG

  • Q wave MI
  • Non Q wave MI
  • Does not distinguish transmural from a non- transmural MI as determined by pathology

Prevalence

  • In the US, 1.3 million cases of nonfatal MI were reported in 2006
  • Incidence of 600 per 100,000 people
  • Increase in the proportion of NSTEMI compared to STEMI
  • Approximately 500,000 to 700,000 deaths are caused by heart disease annually in the United States

Causes

  • Most frequent cause is rupture of an atherosclerotic lesion within coronary wall with subsequent spasm and thrombus formation
  • Coronary artery vasospasm
  • Ventricular hypertrophy
  • Hypoxia
  • Coronary artery emboli
  • Cocaine
  • Arteries
  • Coronary anomalies
  • Aortic dissection
  • Pediatrics Kawasaki disease, Takayasu arteritis
  • Increased afterload which increases myocardial demand

Myocardial Infarction PPT Contents:

  • Classification
  • Prevalence
  • History
  • Physical
  • Causes
  • Risk factors for atherosclerosis
  • Differentials
  • and more

Download Myocardial Infarction PPT

Filename : Myocardial Infarction PPT
Added :9 April, 2012 (08:05)
Category : Health and Safety
Posted by :tukimin

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