in hearts spontaneously developing rhythms excluding vf ( as opposed to hearts requiring direct-current shock ) , factors significantly associated were a higher plasma potassium concentration ( 5.2 vs 4.8 meq/liter ) , shorter reperfusion time ( 1 vs 4 minutes ) , higher plasma magnesium concentration ( 1.36 vs 1.25 mg/dl ) and a lower myocardial temperature ( 27 vs 32 degrees c ) .
C0018787
hearts
C0027061
myocardial