The Pullback Pressure Gradient: A Physiologic Index to Differentiate Focal From Diffuse Coronary Artery Disease.

Post-PCI, stent edge dissections were more frequent in the diffuse CAD group compared with the focal CAD group but did not reach statistical significance (5.4% focal and 15.4% diffuse; P = 0.10). 33 In a subanalysis of the P3 study by Ohashi et al, 33 the post-PCI optical coherence tomography assessment identified higher rates of incomplete stent apposition in patients with diffuse CAD (11.3% in the focal subgroup vs 44.2% in the diffuse subgroup, P = 0.002).

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