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What is Complete occlusion of coronary artery is denoted by which score in TIMI by angiography? and explain in detail?
Ans. A. 0Coronary AngiographyWhen assessed angiographically, flow in the culprit coronary artery is described by a simple qualitative scale called the thrombolysis in myocardial infarction (TIMI) grading system:a. Grade 0 indicates complete occlusion of the infarct-related arteryb. Grade 1 indicates some penetration of the contrast material beyond the point of obstruction but without perfusion of the distal coronary bedc. Grade 2 indicates perfusion of the entire infarct vessel into the distal bed but with flow that is delayed compared with that of a normal arteryd. Grade 3 indicates full perfusion of the infarct vessel with normal flow.