Fewer patients receiving remote ischemic preconditioning received renal replacement therapy ( 7 [ 5.8 % ] vs 19 [ 15.8 % ] ; absolute risk reduction , 10 % ; 95 % CI , 2.25 % -17.75 % ; P = .01 ) , and remote ischemic preconditioning reduced intensive care unit stay ( 3 days [ interquartile range , 2-5 ] ) vs 4 days ( interquartile range , 2-7 ) ( P = .04 ) .