Myocardial Infarct Histology

Card Set Information

Author:
blakegoodman08
ID:
121106
Filename:
Myocardial Infarct Histology
Updated:
2011-12-05 22:07:11
Tags:
S3M3 Ross University Med Medical School Cardiovascular Pathology
Folders:

Description:
Quick review of the timeline of histologic changes in a myocardial infarction.
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user blakegoodman08 on FreezingBlue Flashcards. What would you like to do?


  1. Name the 4 primary stages and their timeline
    • Early changes (<24hr)
    • Middle changes (1-3 days)
    • Later changes (3-7 days)
    • Healing (>7 days)
  2. Name the 3 changes in early infarct histology
    • 1. No initial histological changes in myocardium
    • 2. Coagulative necrosis (get contraction bands)
    • 3. Neutrophil response
  3. Contraction band/coagulative necrosis (<24hr)
  4. Name the 3 changes in middle infarct histology
    • 1. Neutrophils (~24hr)
    • 2. Cellular Debris
    • 3. Macrophage infiltration (~3 days)
  5. 1-3 day myocardial infarct with macrophage response
  6. Name the 3 changes in later infarct histology
    • 1. Macrophages (3 days)
    • 2. Phagocytosis (4-7 days, greatest risk for myocardial rupture)
    • 3. Fibroblast infiltration (7 days)
  7. Phagocytosis phase of late-stage MI (4-7 days)
  8. Name the 3 changes in healing infarct histology
    • 1. Fibroblast infiltration (7 days)
    • 2. Neovascularization
    • 3. Collagen/fibrin deposition (weeks, gives myocardial scar)
  9. Healed myocardial infarct (endocardium with no fat cells)
  10. What are 6 major post-infarct complications?
    • Arrythmia
    • Myocardial rupture (wall, septum, papillary)
    • Pericarditis (Dressler's/fibrinous)
    • Mural thrombus
    • Ventricular aneurysm
    • Ventricular remodeling

What would you like to do?

Home > Flashcards > Print Preview