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Table 1 Clinical factors that can influence collaterals

From: The collateral circulation of the heart

Factor (reference) Remarks
Degree of coronary stenosis [16] Strongest predictor, confirmed in several studies
Proximal lesion location [16]  
Longer duration of symptoms [16]  
Longer duration of lesion occlusion [17] In patients with chronic total occlusions
Heart rate (lower) [15] Only in patients without coronary artery disease