[Pre-, intra- and postoperative behavior of LDH and GOT isoenzymes in the plasma of patients with chronic ischemic heart disease].

The isoenzymes of LDH (types H and M) and the isoenzymes of GOT (cytoplasma, mitochondria) were examined in 14 male patients with chronic ischaemic heart disease before, during and after operation. The present study compares them with clinical parameters. Considering the combination of the two isoenzyme ratios, it can be generalized that chronic ischaemia of the heart is characterized both by a decrease of the ratio H : M of the LDH and an increase of the ratio M : C of the LDH and an increase of the ratio M : C of the GOT. Confirming the function of the open by-pass by recoronarography, the isoenzyme values are normal both with regard to their ratio and to their absolute values.