ST elevation myocardial infarction gross pathology
| Myocardial infarction | |
 | |
|---|---|
| Myocardial infarction, fibrosis. Right Coronary Artery's territory | |
| ICD-10 | I21-I22 |
| ICD-9 | 410 |
| DiseasesDB | 8664 |
| MedlinePlus | 000195 |
| eMedicine | med/1567 emerg/327 ped/2520 |
| Cardiology Network |
 Discuss ST elevation myocardial infarction gross pathology further in the WikiDoc Cardiology Network |
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|---|
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Associate Editor-In-Chief: Cafer Zorkun, M.D., Ph.D. [2]
Myocardial infarctions can be classified temporally from clinical and other features, as well as according to the pathological appearance as:[1]
- Evolving phase of myocardial infarction: (>6 hours),
- Acute phase of myocardial infarction: (6 hours – 7 days),
- Healing phase of myocardial infarction: (7–28 days),
- Healed phase of myocardial infarction: (29 days and beyond).
Time from Onset and Gross Morphologic Finding Relations
- 18 - 24 hours: Pallor of myocardium
- 24 - 72 hours: Pallor with some hyperemia
- 3 - 7 days: Hyperemic border with central yellowing
- 10 - 21 days: Maximally yellow and soft with vascular margins
- 7 weeks: White fibrosis
Gross Pathological Findings
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Acute Myocardial infarction.
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Myocardial infarction, fibrosis. Right Coronary Artery's territory.
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Acute Myocardial infarction; Posterior wall.
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Gross example of myocardial infarction that is several weeks or perhaps months of age.
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Acute myocardial infarction. Multi sliced view.
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Gross example of acute infarction in fixed heart. Lesion is reflow necrosis stone heart also has old scar. Multisliced view.
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Old myocardial infarction with fibrosis and apical thrombus.
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Old myocardial infarction with fibrosis.
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Acute myocardial infarction with epicardial fibrin.
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Myocardial infarction and rupture.
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Myocardial infarction; free wall, 6 days old, in a patient with diabetes mellitus and hypertension.
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Myocardial infarction free wall, 6 days old, in a patient with diabetes mellitus and hypertension.
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Anterior surface of the heart in patient with acute posterior myocardial infarction.
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Posterior surface of the heart in patient with acute posterior myocardial infarction.
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Old myocardial infarction with aneurysm formation
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Myocardial Infarction: Gross; Left ventricle; a mural thrombus.
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Myocardial Infarction: Gross; An excellent example of all ventricular slices in case of healing posterior and healed anterior myocardial infarction. A mural thrombus at apex.
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Myocardial Infarction: Gross; A ventricular slice near apex; Large old anterior and posterior transmural infarctions with mural thrombosis.
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Myocardial Infarction: Gross; External view showing indented area represent small posterior wall aneurysm.
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Myocardial Infarction: Gross; close-up view of anterior wall of left ventricle with dimpling due to aneurysm. Surrounding hyperemia indicates acute infarction.
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Myocardial Infarction: Gross; healed lesion with mural thrombus (an excellent example)
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Myocardial Infarct Scar: Gross; natural color; very large old anterior infarct with wall thinning, mild aneurysm and endocardial thickening. A typical lesion.
References
External links
- The MD TV: Comments on Hot Topics, State of the Art Presentations in Cardiovascular Medicine, Expert Reviews on Cardiovascular Research
- Clinical Trial Results: An up to dated resource of Cardiovascular Research
- Risk Assessment Tool for Estimating Your 10-year Risk of Having a Heart Attack - based on information of the Framingham Heart Study, from the United States National Heart, Lung and Blood Institute
- Heart Attack - overview of resources from MedlinePlus.
- Heart Attack Warning Signals from the Heart and Stroke Foundation of Canada
- Regional PCI for STEMI Resource Center - Evidence based online resource center for the development of regional PCI networks for acute STEMI
- STEMI Systems - Articles, profiles, and reviews of the latest publications involved in STEMI care. Quarterly newsletter.
- American College of Cardiology (ACC) Door to Balloon (D2B) Initiative.
- American Heart Association's Heart Attack web site - Information and resources for preventing, recognizing and treating heart attack.