Key result
Increasing coronary stenosis length in CABG models decreased competitive flow, with the effect plateauing at a length of 15 mm.
Why the study?
Does the length of moderate coronary stenosis affect competitive flow in CABG models?
Does the length of moderate coronary stenosis affect competitive flow in CABG models?
Answers are grounded in this paper and cite their sources.
In computational CABG models, competitive flow decreases as the length of a moderate native coronary stenosis increases up to 15 mm, after which it plateaus.
In coronary artery bypass grafting (CABG), competitive flow usually happens when the native coronary has a moderate stenosis. But whether the competitive flow could be affected by the length of this moderate stenosis is still a problem. This study constructs a series of CABG models with different stenosis lengths and uses multi-scale modeling method for numerical simulations. The results contain graft flow, the magnitude of competitive flow, wall shear stress (WSS) and oscillating shear index (OSI). According to the results, it is known that the effect of competitive flow will decrease with the increase of stenosis length. But when the length reaches 15[Formula: see text]mm, the competitive flow will hardly change anymore.
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Mao et al. (2018) studied Coronary artery disease requiring CABG. Coronary stenosis length was evaluated on Graft flow, magnitude of competitive flow, wall shear stress (WSS), and oscillating shear index (OSI). Increasing coronary stenosis length in CABG models decreased competitive flow, with the effect plateauing at a length of 15 mm.
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