[Postoperative thromboembolism prophylaxis with a reduced low dose heparin fraction and dihydroergotamine in fixed combination (author's transl)].

In a prospective randomized study th efficacy and tolerance of the conventional low dose heparin regimen was compared with a new combination of dihydroergotamine (DHE) and a reduced proportion of heparin (Heparin-Dihydergot 2500) with regard to postoperative thromboembolism prophylaxis in 350 general surgical patients. The result showed that the new combination had the same thrombotic protective action as low dose heparin monotherapy, but with regard to the concomitant risk of hemorrhage it seemed a significantly superior prophylactic variant.