SUPERFICIAL VEIN-THROMBOSIS - INCIDENCE IN ASSOCIATION WITH PREGNANCYAND PREVALENCE OF THROMBOPHILIC DEFECTS

Superficial venous thrombotic (SVT) events are a feature of thrombophi lic abnormalities, particularly those involving the protein C pathway. We have determined the incidence of SVT associated with pregnancy and the early postpartum period in a retrospective study involving 72,000 deliveries. Fourty-nine cases occurring in 47 individuals were record ed, with an overall incidence of 0.68/1000 deliveries (95% CI 0.48-0.8 8). None had a previous history of deep vein thrombosis or pulmonary e mbolism. Most events occurred in the early postpartum period (0.54/100 0 deliveries). Twenty-four/fourty-seven were screened for established thrombophilic abnormalities, with only 1 abnormality detected (FVLeide n heterozygote). Thrombophilia may play a minor role in the aetiology of SVT associated with pregnancy, although a larger study is required to confirm this.