RESULTS	At the end of the study , however , there was a statistical difference ( group STD versus group TVA , p < 0.05 ) with regard to cardiac mortality ( 7 of 30 versus 3 of 30 ) , average amount of tricuspid regurgitation ( 1.5 + / - 1.3 versus 0.5 + / - 0.4 ) , percentage of patients with 2 + or greater tricuspid regurgitation ( 34 % versus 0 % ) , serum creatinine ( 2.9 + / - 2.0 versus 1.8 + / - 0.7 ) , and difference in serum creatinine over baseline ( 2.0 + / - 2.1 versus 0.7 + / - 0.8 ) .\