ST elevation myocardial infarction assessing success of reperfusion
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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 |
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Phone:617-632-7753
Associate Editor-In-Chief: Cafer Zorkun, M.D., Ph.D. [2]
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Assessment of Reperfusion
Myocardial contrast echocardiography (MCE), angiographic myocardial perfusion grade (MPG), and assessment of ST segment resolution are recognized as useful techniques for assessing myocardial perfusion.[1]
The relatively simple and readily available evaluation of the ST segment resolution that exceeds 50% at 60 to 90 minutes after reperfusion is a good indicator of enhanced myocardial perfusion.
Persistence of ischemic chest pain, absence of ST segment resolution and hemodynamic and/or electrical instability are generally indicators of failed pharmacological reperfusion and the need to consider rescue PCI and application of aggressive medical treatment.
Clinical Trial Data
According to TIMI-14 study which was evaluated 888 patients; patients with TIMI 3 perfusion and >70% ST segment resolution had substantial enhancement of survival compared with patients without ST segment resolution, and angiographically patent infarct related arteries.[2]
ACC / AHA Guidelines (Do Not Edit)[3]
| “ |
Class IIa1. It is reasonable to monitor the pattern of ST elevation, cardiac rhythm, and clinical symptoms over the 60 to 180 minutes after initiation of fibrinolytic therapy. Noninvasive findings suggestive of reperfusion include relief of symptoms, maintenance or restoration of hemodynamic and or electrical stability, and a reduction of at least 50% of the initial ST-segment elevation injury pattern on a follow-up ECG 60 to 90 minutes after initiation of therapy. (Level of Evidence: B) | ” |
Sources
- The 2004 ACC/AHA Guidelines for the Management of Patients With ST-Elevation Myocardial Infarction [4]
- The 2007 Focused Update of the ACC/AHA 2004 Guidelines for the Management of Patients with ST-Elevation Myocardial Infarction [3]
References
- ↑ Gibson CM (August 2003). "Has my patient achieved adequate myocardial reperfusion?". Circulation 108 (5): 504–7. doi:10.1161/01.CIR.0000082932.69023.74. PMID 12900495.
- ↑ de Lemos JA, Antman EM, Gibson CM, et al (January 2000). "Abciximab improves both epicardial flow and myocardial reperfusion in ST-elevation myocardial infarction. Observations from the TIMI 14 trial". Circulation 101 (3): 239–43. PMID 10645918.
- ↑ 3.0 3.1 Antman EM, Hand M, Armstrong PW, et al (January 2008). "2007 Focused Update of the ACC/AHA 2004 Guidelines for the Management of Patients With ST-Elevation Myocardial Infarction: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines: developed in collaboration With the Canadian Cardiovascular Society endorsed by the American Academy of Family Physicians: 2007 Writing Group to Review New Evidence and Update the ACC/AHA 2004 Guidelines for the Management of Patients With ST-Elevation Myocardial Infarction, Writing on Behalf of the 2004 Writing Committee". Circulation 117 (2): 296–329. doi:10.1161/CIRCULATIONAHA.107.188209. PMID 18071078.
- ↑ Antman EM, Anbe DT, Armstrong PW, Bates ER, Green LA, Hand M, Hochman JS, Krumholz HM, Kushner FG, Lamas GA, Mullany CJ, Ornato JP, Pearle DL, Sloan MA, Smith SC, Alpert JS, Anderson JL, Faxon DP, Fuster V, Gibbons RJ, Gregoratos G, Halperin JL, Hiratzka LF, Hunt SA, Jacobs AK (August 2004). "ACC/AHA guidelines for the management of patients with ST-elevation myocardial infarction: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines (Committee to Revise the 1999 Guidelines for the Management of Patients with Acute Myocardial Infarction)". Circulation 110 (9): e82–292. PMID 15339869.
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 .
