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Vasa. 1989;18(2):152-6.

Prevention of postoperative deep vein thrombosis by one daily injection of low molecular weight heparin and dihydroergotamine.

Abstract

201 patients aged over 40 years undergoing abdominal surgery were divided randomly into two groups. Each patient received two subcutaneous injections daily: the first group received a morning injection of 1500 aPTT U of low molecular weight heparin combined with 0.5 mg dihydroergotamine (LMH/DHE) and an evening injection of placebo; the second group received morning and evening injections of 2500 IU standard heparin combined with 0.5 mg dihydroergotamine(H/DHE). 25 patients were withdrawn during the course of the trial, 13 in the LMH/DHE group and 12 in the H/DHE group. There was no significant difference between the two groups with regard to age, sex, body weight or history of thromboembolism. 125I-labelled fibrinogen test was routinely used to detect deep vein thrombosis (DVT), which was confirmed by phlebography. Ventilation-perfusion scanning was performed in patients in whom pulmonary embolism was suspected on clinical grounds. DVT occurred in 6 patients in the LMH/DHE group (6.9%) and in 7 patients in the H/DHE group (7.9%). Pulmonary embolism occurred in one patient in each group. The only noteworthy haemorrhagic incident was a haematoma of the abdominal wall in one patient (LMH/DHE). It was concluded that a single daily injection of 1500 aPTT U low molecular weight heparin combined with DHE is as effective and as well tolerated as two injections daily of 2500 IU standard heparin combined with DHE.

PMID:
2545054
[PubMed - indexed for MEDLINE]
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