We present here the clinical course and treatment of a woman with a history of two miscarriages who joined our program 10 years ago and has been followed up ever since. After antiphospholipid syndrome and alloimmune failure were diagnosed, she was given preconceptional treatment using unfractionated heparin, aspirin, prednisone and lymphocyte immunizations. She delivered two premature babies in the following two pregnancies. At present both children are healthy and are attending school. The fifth pregnancy was unsuccessful, in spite of having undergone a similar but postconceptional therapeutic scheme. We discuss this case focusing on the pathogenic mechanisms and the therapeutic aspects of these disorders.
Una de las causas de pérdida gestacional recurrente es la trombofilia, que se define como una tendencia a la trombosis o hipercoagulabilidad, con variabilidad en las manifestaciones clínicas dependiente de la región vascular afectada por la ausencia de flujo sanguíneo. Las trombofilias se pueden clasificar como heredadas y adquiridas de acuerdo con la naturaleza de su causa. Entre las trombofilias heredadas están el factor V Leiden, la protrombina G20210A, la metilentetrahidrofolato reductasa C677T, las deficiencias de los anticoagulantes naturales antitrombina III, proteína C y proteína S, las disfibrinogenemias y la homocistinuria. En el grupo de las trombofilias adquiridas se encuentran el síndrome antifosfolípido, la resistencia a la proteína C activada sin alteraciones en el gen del factor V y la hiperhomocisteinemia leve o moderada. Este artículo es una revisión de la literatura de estudios recientes que han buscado la asociación entre las diferentes trombofilias y la pérdida gestacional recurrente. Se incluyen las recomendaciones diagnósticas, profilácticas y terapéuticas para mujeres con trombofilia y pérdida gestacional.
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