despite the increased pressure load to the heart , myocardial contractility was maintained or improved after reduction of left ventricular hypertrophy , as indicated by the ratio of end-systolic wall stress to end-systolic volume index ( p less than 0.02 ) and by the relation of fractional shortening to end-systolic wall stress ( p less than 0.06 ) .
C0018787
heart
C0027061
myocardial