Response by Hwang et al to Letter Regarding Article, “Impact of Target Arterial Residual Stenosis on Outcome After Endovascular Revascularization”
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We appreciate Cao et al1 for their interest and constructive comments to our recent article.2
Cao et al1 suggested that a more intensive antiplatelet strategy during and after endovascular therapy (EVT) may be helpful in patients with excellent pretreatment collaterals and in situ thrombo-occlusion (IST) as a target arterial pathogenic mechanism. The reasons why more intensified antiplatelet therapy can be used in patients with excellent collaterals were as followings: (1) the presence of excellent pretreatment collaterals might be a marker for severe chronic atherosclerotic disease in situations when the angiographic information before acute IST is unavailable; and (2) the chance of procedure-related endothelial damage might be higher in patients with severe stenosis than those with only …