Collateral arteries are small blood vessels that connect the aorta to the pulmonary artery. These arteries help in the movement of blood when there is a blockage in the main blood vessel. They do not open under normal conditions. Only when there is a blockage do they work.
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Query: Hi doctor, My father had a major heart attack 15 days ago. The angiography report showed LAD/Diagonal - type III LAD. Mid has 90% stenosis. LCX/OM non-dominant. Early OM1 has 90% stenosis. OM2 has 80% stenosis. PTCA with DES to LAD has been performed. Now, what to do with OM1 and OM2? Please gui... Read Full »
Answer: Hi, Welcome to icliniq.com. Any blockage of more than 70% if possible should be stented. In your father's case heart attack was due to mid LAD block (left anterior descending coronary artery) which has been treated. OM (obtuse marginal) branches supply papillary muscles and posterolateral wa... Read Full »