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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