ST elevation myocardial infarction gross pathology
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| Myocardial infarction Classification and external resources | |
 | |
|---|---|
| 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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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Phone:617-525-6884
Associate Editor-In-Chief: Cafer Zorkun, M.D., Ph.D. [2] Phone:617-525-7431
Introduction
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
 Acute Myocardial infarction. |
Myocardial infarction, fibrosis. Right Coronary Artery's territory. |
 Acute Myocardial infarction; Posterior wall. |
 Gross example of myocardial infarction that is several weeks or perhaps months of age. |
 Acute myocardial infarction. Multi sliced view. |
 Gross example of acute infarction in fixed heart. Lesion is reflow necrosis stone heart also has old scar. Multisliced view. |
 Old myocardial infarction with fibrosis and apical thrombus. |
 Old myocardial infarction with fibrosis. |
 Acute myocardial infarction with epicardial fibrin. |
 Myocardial infarction and rupture. |
 Myocardial infarction; free wall, 6 days old, in a patient with diabetes mellitus and hypertension. |
 Myocardial infarction free wall, 6 days old, in a patient with diabetes mellitus and hypertension. |
 Anterior surface of the heart in patient with acute posterior myocardial infarction. |
 Posterior surface of the heart in patient with acute posterior myocardial infarction. |
 Old myocardial infarction with aneurysm formation |
 Myocardial Infarction: Gross; Left ventricle; a mural thrombus. |
 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. |
 Myocardial Infarction: Gross; A ventricular slice near apex; Large old anterior and posterior transmural infarctions with mural thrombosis. |
 Myocardial Infarction: Gross; External view showing indented area represent small posterior wall aneurysm. |
 Myocardial Infarction: Gross; close-up view of anterior wall of left ventricle with dimpling due to aneurysm. Surrounding hyperemia indicates acute infarction. |
 Myocardial Infarction: Gross; healed lesion with mural thrombus (an excellent example) |
 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.
Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
