title: Drugs in the peri-operative period: 3--Hormonal contraceptives and hormone replacement therapy.
abstract: Women taking combined hormonal contraceptives or hormone replacement therapy (HRT) have an increased risk of developing venous thromboembolism, compared to non-users. Surgery itself carries a risk of thromboembolism, the incidence of which varies with the nature of the procedure. In this article, the third in our series on drug therapy in the peri-operative period, we review the thromboembolic effects of oral contraceptives and HRT and consider how these affect management around the time of surgery.
mesh_terms: D003278:Contraceptives, Oral, Hormonal; D000075202:Contraindications; D015914:Estrogen Replacement Therapy; D005260:Female; D006801:Humans; D019990:Perioperative Care / Q000379:methods*; D011183:Postoperative Complications / Q000139:chemically induced; D013923:Thromboembolism / Q000139:chemically induced
chemical_list: D003278:Contraceptives, Oral, Hormonal