comparison of the 13 patients in group i with the 17 patients in group ii disclosed similar mean ages ( 55 vs 58 years ) , similar average preoperative right ventricular systolic pressures ( 64 vs 61 mm hg ) , similar average right atrial mean pressures ( 10 vs 9 mm hg ) , similar average left ventricular systolic pressures ( 126 vs 120 mm hg ) , similar average pulmonary artery wedge-left ventricular mean diastolic pressures ( 16 vs 18 mm hg ) , similar cardiac indexes ( 2.1 vs 2.0 liters/min/m2 ) , similar mean heart weights ( 507 vs 535 g ) , and similar percents with grossly visible foci of left ventricular necrosis ( 15 % vs 12 % ) and fibrosis ( 23 % vs 12 % ) .
C0018787
heart
C0225897
left