Why the study?
Does deferring revascularization based on CFR ≥2.0 in lesions with FFR ≤0.8 result in noninferior outcomes compared to lesions with FFR >0.8 and CFR ≥2.0?
Does deferring revascularization based on CFR ≥2.0 in lesions with FFR ≤0.8 result in noninferior outcomes compared to lesions with FFR >0.8 and CFR ≥2.0?
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The results do not support using invasive CFR ≥2.0 to defer revascularization for lesions with reduced FFR (≤0.8).
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Johnson et al. (2021) studied this question.
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