Management of anticoagulant therapy during pregnancy in patients with prosthetic heart valves

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RESUMO

We describe two patients with Starr-Edwards mitral valve replacements who underwent pregnancy on oral anticoagulants and who were successfully delivered of live babies. The literature on pregnancy with prosthetic heart valves is reviewed. It is suggested that properly controlled oral anticoagulation should be continued until the onset of labour; the anticoagulant effect should then be reversed by an intravenous infusion of fresh-frozen plasma and the patient maintained on intravenous heparin injections six-hourly. Oral anticoagulants should be restarted immediately after delivery and the heparin withdrawn only when their effect has been re-established.

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