In CABG group , ET-@ levels were significantly elevated vs. baseline in arterial : ART-T@ vs. ART-T@ ( @ @ vs. @ @ fmol/mL , p = @ ) , pulmonary : SG-T@ vs. SG-T@ ( @ @ vs. @ @ fmol/mL , p < @ ) and SG-T@ vs. SG-T@ ( @ @ vs. @ @ fmol/mL , p < @ ) , and coronary circulation CS-T@ vs. CS-T@ ( @ @ vs. @ @ fmol/mL , p = @ ) .