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Coronary physiology measurements obtained from 1 patient who was randomized to RIPC. Data were obtained before (A) and after (B) RIPC. There was a reduction in IMR and TmnH with RIPC, whereas the CFR increased. IMR=Pd×TmnH. CFR indicates coronary flow reserve; FFR, fractional flow reserve; IMR, index of microcirculatory resistance; Pa, mean proximal pressure; Pd, mean distal pressure; RIPC, remote ischemic preconditioning; TmnH, mean transit time during hyperemia.
