ST elevation myocardial infarction causes: Difference between revisions
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Revision as of 13:13, 29 August 2014
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ST Elevation Myocardial Infarction Microchapters |
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Differentiating ST elevation myocardial infarction from other Diseases |
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Diagnosis |
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Treatment |
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Case Studies |
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ST elevation myocardial infarction causes On the Web |
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Directions to Hospitals Treating ST elevation myocardial infarction |
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Risk calculators and risk factors for ST elevation myocardial infarction causes |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
The most common proximate cause of ST elevation myocardial infarction is plaque rupture. There are risk factors for plaque rupture and triggers of plaque rupture. A full discussion regarding the chronic risk factors and acute triggers of ST elevation MI can be found in other chapters.
Causes
While plaque rupture is the most common cause of ST segment elevation MI, other conditions can cause ST elevation and myocardial necrosis. In order to expeditiously treat an alternate underlying cause of myonecrosis, it is important to rapidly identify conditions other than plaque rupture that may also cause ST elevation and myonecrosis. Indeed, the management of some of these conditions might be differ substantially from that of plaque rupture: cocaine induced STEMI would not be treated with beta-blockers, and myocardial contusion would not be treated with an antithrombin. These conditions include the following:
By Organ System
| Cardiovascular | Aortic dissection more often extends to occlude the ostium of the right coronary artery
Aortic stenosis can cause subendocardial ischemia and infarction if demand grossly exceeds supply |
| Chemical / poisoning | Carbon monoxide poisoning |
| Dermatologic | No underlying causes |
| Drug Side Effect | Oral contraceptive pills, nuvaring (etonogestrel and ethinyl estradiol vaginal ring), particularly among women who smoke |
| Ear Nose Throat | A recent upper respiratory tract infections has been associated with a 4.9 fold rise in the risk of MI |
| Endocrine | Thyrotoxicosis,
Adrenal myocarditis, where elevated levels of catecholamines due to pheochromocytoma cause myocarditis and STEMI.[1][2][3] |
| Environmental | Blizzards and snow shoveling, and inhalation of fine particulate matter in areas with air pollution and high traffic have been identified as triggers of MI. |
| Gastroenterologic | A heavy meal has been associated with a 4 fold rise in the risk of MI, and it is not clear if this is mediated by hyperadrenergic tone[4]; |
| Genetic | Familial hypercholesterolemia |
| Hematologic | Disseminated intravascular coagulation (DIC) |
| Iatrogenic | Epinephrine overdose
Sudden withdrawal of Beta blockers or nitrates |
| Infectious Disease | A recent upper respiratory tract infections has been associated with a 4.9 fold rise in the risk of MI
Infectious endocarditis may STEMI as a result of embolization |
| Musculoskeletal / Ortho | No underlying causes |
| Neurologic | No underlying causes |
| Nutritional / Metabolic | A heavy meal has been associated with a 4 fold rise in the risk of MI and it is not clear if this is mediated by hyperadrenergic tone[4];
Mucopolysaccharidoses or Hurler disease Thiamine deficiency has been associated with ST elevation and myonecrosis [5] [6] [7] |
| Obstetric/Gynecologic | Spontaneous coronary dissection in the setting of pregnancy |
| Oncologic | Radiation therapy can accelerate atherosclerosis particularly in the distribution of the left anterior descending artery; |
| Opthalmologic | No underlying causes |
| Overdose / Toxicity | Cocaine ingestion which may result in direct myocyte injury due to an adrendergic surge, vasoconstriction of the microvasculature or plaque rupture and thrombus formation;
Marijuana ingestion has been identified as a trigger of MI. |
| Psychiatric | Anger, anxiety, bereavement, work-related stress, earthquakes, bombings and other psychosocial stressors have been identified as triggers of MI, and it is not clear if the mechanism is plaque rupture or hyperadrenergic tone;
Stress cardiomyopathy or Broken heart syndrome causes ST segment elevation most often in the anterior precordium and is thought to be due to direct myocyte injury from a hyperadrenergic stimulation emanating from the central nervous system. |
| Pulmonary | A recent upper respiratory tract infections has been associated with a 4.9 fold rise in the risk of MI |
| Renal / Electrolyte | Homocystinuria |
| Rheum / Immune / Allergy | Takayasus |
| Sexual | Sexual activity has been identified as a trigger of MI |
| Trauma | Both penetrating and non-penetrating trauma to the heart or myocardial contusion, commotio cordis can be associated with ST elevation and myonecrosis. |
| Urologic | No underlying causes |
| Miscellaneous | Hypotension particularly if it is prolonged |
References
- ↑ Roghi A, Pedrotti P, Milazzo A, Bonacina E, Bucciarelli-Ducci C (2011). "Adrenergic myocarditis in pheochromocytoma". J Cardiovasc Magn Reson. 13: 4. doi:10.1186/1532-429X-13-4. PMC 3025878. PMID 21223554.
- ↑ Navarro I, Molina M, Civera M, Ascaso JF, Real JT, Carmena R (2011). "[Catecholamine-induced cardiomyopathy triggered by pheochromocytoma]". Endocrinol Nutr. 58 (4): 204–6. doi:10.1016/j.endonu.2010.11.005. PMID 21393076.
- ↑ Subramanyam S, Kreisberg RA (2012). "Pheochromocytoma: a cause of ST-segment elevation myocardial infarction, transient left ventricular dysfunction, and takotsubo cardiomyopathy". Endocr Pract. 18 (4): e77–80. doi:10.4158/EP11346.CR. PMID 22441003.
- ↑ 4.0 4.1 Lipovetzky N, Hod H, Roth A, Kishon Y, Sclarovsky S, Green MS (2004). "Heavy meals as a trigger for a first event of the acute coronary syndrome: a case-crossover study". Isr. Med. Assoc. J. 6 (12): 728–31. PMID 15609883. Unknown parameter
|month=ignored (help) - ↑ Kawano H, Koide Y, Toda G, Yano K (2005). "ST-segment elevation of electrocardiogram in a patient with Shoshin beriberi". Intern. Med. 44 (6): 578–85. PMID 16020883. Unknown parameter
|month=ignored (help) - ↑ Hundley JM, Ashburn LL, Sebrell WH. The electrocardiogram in chronic thiamine deficiency in rats. Am J Physiol 144: 404–414, 1954.
- ↑ Read DH, Harrington DD (1981). "Experimentally induced thiamine deficiency in beagle dogs: clinical observations". Am. J. Vet. Res. 42 (6): 984–91. PMID 7197132. Unknown parameter
|month=ignored (help)