in the present studies of 24 open-chest , working swine hearts with controlled perfusion of the left anterior descending ( lad ) coronary artery , changes in proximal and distal coronary vascular resistance ( cvr ) , small-vessel perfusion ( using radioactively-labeled microspheres ) , and regional and global mechanical function and metabolism ( myocardial oxygen consumption [ mvo2 ] and lactate extraction ) were observed before and for 1 hour following a single impact involving the lad artery .
C0018787
hearts
C0226032
lad artery