alexa Abstract | Prognostic Value of Area Flow Index in Patients with Acute st Elevation Myocardial Infarction: Clinical and Echocardiographic Outcomes
ISSN: 2376-0427

Journal of Pigmentary Disorders
Open Access

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Research Article Open Access

Abstract

Background: Early restoration of patency of infarct related artery is a universally accepted goal in the treatment of acute myocardial infarction. These could be achieved by Primary PCI or fibrinolysis. Primary PCI is preferred reperfusion strategy over fibrinolysis. Identifying initial area at risk in patients with acute myocardial infarction had been shown to have a direct impact on patients adverse clinical outcomes as well as prediction of systolic dysfunction. Area flow index (AFI) calculation in patients with acute myocardial infarction may predict initial area at risk during primary PCI.
Aim: To investigate the clinical utility of Area flow index to predict systolic dysfunction and adverse clinical outcomes in patients with acute anterior ST elevation myocardial infarction Patients: 250 consecutive patients with acute anterior ST elevation myocardial infarction treated with primary PCI presenting to Alexandria main university hospital and ICC hospital from June 2013 till December 2014. Methods: Echocardiographic assessment of LV systolic function 5-7 days after myocardial infarction by calculation of ejection fraction using modified simpson method. Area flow index was calculated by dividing culprit segment cross sectional area to total coronary cross sectional area. Where DC is the culprit segment diameter, D1 left anterior descending diameter, D2 left circumflex diameter, D3 right coronary diameter. All patients were followed one month for the occurrence of MACE. Results: Patients were grouped according to their ejection fraction following myocardial infarction into 3 groups: -Group I: severe LV systolic dysfunction EF <30%. -Group II: moderate LV systolic dysfunction EF 30-45%. -Group III: mild LV systolic dysfunction EF>45% There was a significant negative correlation between AFI and LVEF (r=-0. 58, P<0. 001). The mean AFI for patients in group I was 33. 1 ± 7.4, patients in group II was 26. 6 ± 7.4, and those in group III was 20.0 ± 6. 1. AFI>28.4% had a 75.6% sensitivity and 78.1% specificity in predicting severe LV systolic dysfunction. Also the composite one month MACE was higher in the group with AFI>28.4% (p<0. 001).
Conclusion: Area flow index calculated from coronary angiography at time of primary PCI is a new strong independent predictor of LV systolic dysfunction and 1month MACE in patients with acute anterior myocardial infarction.

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Author(s): Sherif W Ayad, Mohamed A Sobhy and Mohamed Asadaka

Keywords

Myocardial infarction, Patients, Systolic dysfunction, Heart failure, Vitiligo, Melanoma, Melanin

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