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The ostial left anterior descending coronary artery (LAD) lesion is an important target for coronary revascularization because its location subtends a large territory of myocardium1. Accurate stent placement is, however, mandatory for optimal results, but this is often difﬁcult to achieve with the guidance of traditional angiography. We present a case of precise LAD ostium stenting with simple innovative marker wire technique. Ostial PCI requires very precise stent positioning to obtain full lesion coverage, yet avoid unnecessary proximal extension which may result in obstruction of major vessels. Excessive stent movement occurs with cardiac contraction. Our case shows that with simple marker wire technique, precise LAD ostium stenting can be done with good results.
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