[18] Pathology of Myocardial Infarction Flashcards Preview

[OS 213] CVS Module > [18] Pathology of Myocardial Infarction > Flashcards

Flashcards in [18] Pathology of Myocardial Infarction Deck (12):
1

Most Common Blood Vessel Infarcted

Left Anterior Descending Artery

2

What causes Contraction Band Necrosis during Reperfusion Injury

Hyperfusion of Ca2+ ions cause necrosis

3

What causes Cardiogenic Shock during MI

>40% loss of left ventricular mass

4

Can you have Hypoxia without Ischemia?

Yes, if the oxygen content of blood decreases as a result of anemia

5

Thrombosis usually occurs in this coronary blood vessel

Left Anterior Descending

50%

6

Thrombosis never occurs in this coronary blood vessel

Intramyocardial Branches

7

Myocyte injury is irreversible after how many minutes?

30-60 minutes of ischemia

8

[Gross and Microscopic Heart Changes]

4 Hours post MI

No changes

9

[Gross and Microscopic Heart Changes]

4-24 Hours Post MI

Coagulation Necrosis
Edema

10

[Gross and Microscopic Heart Changes]

3-7 Days

Peak of damage

11

[Gross and Microscopic Heart Changes]

1-3 Weeks

Beginning of healing

12

[Gross and Microscopic Heart Changes]

3-6 Weeks

Fibrosis