[Exercise ECG and serum enzymes in women using oral contraceptives].

In 45 women who in an average period of 5.6 years took oral contraceptives and who became evident in the transaminase screening a bicycle-ergometric load examination was carried out. At the same time before and after load estimations of enzymes (ALAT, ASAT, LDH, CK) were performed. Only in 4 women (8.9%) under load suspicious ECG-findings could be proved, which, however, could not be regarded as secure signs of ischaemia, but above all as falsely positive changes of the ECG in psychovegetative heart syndrome. The estimation of total enzyme activities did not achieve an additional gain of information.