The myocardial arginine : ADMA ratio increased during surgery and was significantly higher in the enteral and parenteral groups than in the control group [ median ( IQR ) : 115.0 ( 98.0-142 .2 ) ( P = 0.012 ) , 116.9 ( 100.3-135 .3 ) ( P = 0.004 ) , and 93.3 ( 82.7-101 .1 ) , respectively ] .