ST elevation myocardial infarction magnesium therapy
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| Myocardial infarction Classification and external resources | |
 | |
|---|---|
| Diagram of a myocardial infarction (2) of the tip of the anterior wall of the heart (an apical infarct) after occlusion (1) of a branch of the left coronary artery (LCA, right coronary artery = RCA). | |
| 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 magnesium therapy further in the WikiDoc Cardiology Network |
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Mechanism of Benefit
Between 1980 and 2002, a total of 68 684 patients were studied in a series of 15 randomized trials. On the basis of the totality of available evidence, in current coronary care practice, there is no indication for the routine administration of intravenous magnesium to patients with STEMI at any level of risk.
Magnesium can continue to be administered for repletion of documented electrolyte deficits and life-threatening ventricular arrhythmias such as torsade de pointes. [1] [1]
Guidelines (DO NOT EDIT)
Class IIa
1. It is reasonable that documented magnesium deficits be corrected, especially in patients receiving diuretics before the onset of STEMI. (Level of Evidence: C)
2. It is reasonable that episodes of torsade de pointes type VT associated with a prolonged QT interval be treated with 1 to 2 grams of magnesium administered as an IV bolus over 5 minutes. (Level of Evidence: C)
Class III
1. In the absence of documented electrolyte deficits or torsade de pointes type VT, routine intravenous magnesium should not be administered to STEMI patients at any level of risk. (Level of Evidence: A)
References
See also
- acute coronary syndrome
- angina
- Cardiac arrest
- coronary thrombosis
- Hibernating myocardium
- Stunned myocardium
- Ventricular remodeling
External links
- 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 .
