Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0024141 (systemic lupus erythematosus)
 44,322 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Congenital factor XI (FXI) deficiency is associated with a variable bleeding phenotype. Recent reports have documented the use of therapeutic plasma exchange to rapidly and isovolumetrically increase FXI levels before invasive procedures in patients with congenital FXI deficiency. We report a case of acquired FXI deficiency in a pregnant woman with lupus. We proved that the inhibitor was an IgG, therefore potentially capable of crossing the placenta. While immune suppression eliminated detectable circulating inhibitor, the woman's FXI remained quite low. A multi-disciplinary team was formed and therapeutic plasma exchange with 100% plasma replacement was performed when the patient went into labor, to acutely raise her FXI level and remove any potential non-neutralizing inhibitor. The mother had a controllable level of bleeding during post-TPE cesarean section; the baby had no bleeding and the baby's FXI levels were not overtly abnormal. Therapeutic plasma exchange in acquired FXI deficiency (or other acquired hemophilias) can both acutely isovolumetrically raise factor levels and remove any circulating inhibitor.
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PMID:Acquired factor XI deficiency and therapeutic plasma exchange. 2902 58


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