SERPINC1 and deep vein thrombosis: The gestational puerperal cycle is a transitory thrombotic state that may predispose to thromboembolic phenomena, whose major complication is the pulmonary thromboembolism, which may be fatal.14 Patients with thrombosis associated with a family history of this should be investigated (ATIII dosage, Leiden factor V, proteins C and S, homocysteine, AFA) and alerted to the risk of developing thromboembolic phenomena (Table) in the face of puerperium risk factors for nephrotic syndrome, surgeries, and immobilization.14