…caused by partial occlusion of the artery (i.e. coronary blood flow is not completely obstructed). NSTE ACS typically presents with ST segment depressions and…

…occluding smaller vessels downstream). The thrombosis causes occlusion of the artery; blood flow may be partially or completely obstructed. Consequently, the myocardium supplied by the…

…thrombose and occlude. Many acute myocardial infarctions arise from lesions that previously obstructed less than 50% of the lumen. Assessment of total coronary disease burden…

…Balloon inflation Atherectomy Stent implantation Manipulation of friable SVG lesions Embolic debris obstructs the distal microcirculation and may be accompanied by microvascular constriction and endothelial…

…sac impedes venous return to the right atrium. Similarly, in tension pneumothorax, the elevated intrathoracic pressure obstructs the venous return via the superior and infer