[Serum kreatinkinase MB during fenoterol tocolysis (author's transl)].

In the investigation of possible myocardial damage, the assay of the heart specific isoenzyme kreatinkinase MB has established itself as a highly sensitive proof of a heart necrosis. In patients who underwent stationary treatment for premature contractions, the CK-activity was measured in the initial phase of tocolysis and additionally right before the therapy was ended. There was no laboratory indication of any heart damage due to tocolytic treatment.