although a significant increase in left ventricular end-diastolic pressure was observed in hearts exposed to 30 min ischemia , the amount of creatine kinase ( ck ) released during re-flow after 30 min ischemia was not enhanced by contracture but was proportional to the duration of ischemia ( compared with that of 20 min ischemia ) .
C0225897
left ventricular
C0018787
hearts