Histologic dating of myocardial infarction

histologic dating of myocardial infarction

Can histologic findings be used to determine the age of myocardial infarction?

This study confirms the belief that histologic findings in evolving myocardial infarction can be used to determine the age of the infarct. Modern therapy has not altered this evolutionary process.

What is the history of myocardial infarct?

myocardial infarct were established by MaDory et al in 1939. The present study was undertaken to reexamine more quantitatively the evolution of myocardial infarc- tion and to determine the prevalence of two recently described pathologic findings: wavy fibers and myo- cytolysis.

What is the earliest histologic change seen in myocardial infarction (hematoxylin-eosin)?

Wavy fibers may be earliest histologic change seen in myocardial infarction (hematoxylin- eosin, X 160). Focal myocytolysis occurred in 16 percent (19/121) of the infarcts that were 1 to 7 days old and in 19 percent (36/192) of the infarcts of all ages.

What is myocardial infarction?

Myocardial infarction, abbreviated MI, is death of cardiac muscle due to a compromised blood supply. In the context of pathology, they are occasionally seen at autopsy . The lay term for MI is heart attack . Usually diagnosed clinically - with blood work (troponin, CK-MB) or EKG.

How do you determine the age of a myocardial infarct?

The histologic criteria for determining the age of a myocardial infarct were established by Mallory et al in 1939. The present study was undertaken to reexamine more quantitatively the evolution of myocardial infarction and to determine the prevalence of two recently described pathologic findings: wavy fibers and myocytolysis.

Which histologic findings are characteristic of myocardial infarction?

Histopathological examination of the heart may reveal infarction at autopsy. Under the microscope, myocardial infarction presents as a circumscribed area of ischemic, coagulative necrosis (cell death).

What is the history of myocardial infarct?

myocardial infarct were established by MaDory et al in 1939. The present study was undertaken to reexamine more quantitatively the evolution of myocardial infarc- tion and to determine the prevalence of two recently described pathologic findings: wavy fibers and myo- cytolysis.

How is a diagnosis of myocardial infarction made?

Myocardial infarction diagnosis. Jump to navigation Jump to search. A diagnosis of myocardial infarction is created by integrating the history of the presenting illness and physical examination with electrocardiogram findings and cardiac markers (blood tests for heart muscle cell damage).

What is heart attack (myocardial infarction)?

Heart Attack (Myocardial Infarction) Menu. A heart attack, or myocardial infarction (MI), is permanent damage to the heart muscle. Myo means muscle, cardial refers to the heart, and infarction means death of tissue due to lack of blood supply. Your heart muscle needs to receive a good supply of blood at all times to function properly.

What are the symptoms of myocardial infarction?

Myocardial infarction. Myocardial infarction ( MI ), commonly known as a heart attack, occurs when blood flow decreases or stops to a part of the heart, causing damage to the heart muscle. The most common symptom is chest pain or discomfort which may travel into the shoulder, arm, back, neck, or jaw.

What is the medical term for myocardial?

pertaining to the muscular tissue of the heart (the myocardium). myocardial infarction (MI) death of the cells of an area of the heart muscle (myocardium) as a result of oxygen deprivation, which in turn is caused by obstruction of the blood supply; commonly referred to as a “heart attack.”.

How is myocardial infarction classified?

Myocardial infarction is classified according to the region of the heart affected, which depends on the major coronary artery that is occluded.

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