accordingly , in the hyperthyroid hearts , the contractile efficiency ( 27 +/- 6 % ) was lower and left ventricular vo2 for excitation-contraction coupling ( 0.028 +/- 0.004 ml o2/beat/100 g ) was higher than in normal hearts ( 40 +/- 4 % and 0.021 +/- 0.005 ml o2/beat/100 g , respectively ) .
C0225897
left ventricular
C0018787
hearts