the lvef obtained using a cardiac probe and 113min increased in 28 normals from 57 +/- 9 % to 64 +/- 13 % ( p less than 0.001 ) during handgrip exercise , while the lvef decreased from 45 +/- 9 % to 41 +/- 10 % ( p less than 0.01 ) in patients with acute myocardial infarction 4-7 weeks after episode , from 48 +/- 11 to 40 +/- 12 % ( p less than 0.001 ) in patients with old myocardial infarction , and from 52 +/- 9 to 42 +/- 9 % ( p less than 0.001 ) in patients with angina pectoris .
C0018787
cardiac
C0155626
acute myocardial infarction