Thromboembolism during pregnancy or postpartum

presented as crude and adjusted odds ratios (ORs) with a 95% confidence interval (CI). Results: The incidence of VTE was 0.042% (17 patients, mean age 32.4±2.5 years), with deep venous thrombosis (DVT) in 0.01% of the patients (4 patients, mean age 31.5±2.9 years), and pulmonary embolism (PE) in 0.032% of the patients (13 patients, mean age 32.6±2.5 years). The postnatal incidence of VTE was higher than the antenatal incidence (2 vs. 15). The main manifestations at the time of diagnosis, in order of frequency, were: dyspnea in 8 patients (62%), chest pain in 4 patients (31%), cough in 2 patients (15%), and syncope in 1 patient (8%). The risk factors for VTE were Cesarean section (OR=7.4; 95% CI: 2.1-25.7, p=0.002) and preeclampsia (OR=12.0; 95% CI: 4.2-34.2, p<0.000). All cases showed clinical improvement spontaneously, or with anticoagulation and surgical thrombectomy, and caused no fetal or maternal mortality. Conclusions: The incidence of VTE during pregnancy was 0.042%; the independent risk factors were Cesarean section and preeclampsia. (Korean J Med 75:658-664, 2008)