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  • Title: Association of cardiac ischemic score and coronary collateral circulation.
    Author: Arzu J, Siddique MA, Rahman F, Anam MK, Zaman SM, Awal A, Subedi B, Fatema K.
    Journal: Mymensingh Med J; 2011 Apr; 20(2):275-9. PubMed ID: 21522100.
    Abstract:
    Coronary collateral circulation maintains myocardial perfusion in coronary atherosclerotic disease. The indicators of cardiac ischemia, (Angina pectoris on exertion, during emotion, previous myocardial infarction and prior coronary intervention) are associated with presence of coronary collateral circulation. In this prospective observational cross sectional study, 128 patients with history of angina pectoris on exertion and or during emotion and or myocardial infarction and or previous coronary intervention were enrolled. The cardiac ischemic score (range 1-4) was calculated by adding 1 point for each of the above four clinical factors, which can be easily assessed. Presence of coronary collaterals in coronary angiogram was defined as Rentrop grade ≥1. Patients were divided into two groups. Group A patients having Rentrop grade 0 and Group B patients are with collateral circulation, having Rentrop grade 1-3. Patients having cardiac ischemic score (range 1-4) are compared in these groups. Maximum (83.3%) patients of Group B with coronary collateral circulation had cardiac ischemic score 2-4, but majority (86.4%) of Group A patients without collaterals showed the score only 1. Thus the cardiac ischemic score is strongly associated with the presence of coronary collaterals.
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