Plasma exchange and immunoadsorption effectively remove antiphospholipid antibodies in pregnant patients with antiphospholipid syndrome.

Rheumatology Unit, Department of Clinical and Experimental Medicine, University of Padua, Padua, Italy.
Journal of Clinical Apheresis (Impact Factor: 2.27). 04/2012; 27(4):200-4. DOI: 10.1002/jca.21229
Source: PubMed

ABSTRACT Conventional therapy with aspirin and/or heparin is at times incapable of preventing complications in high risk pregnancies of patients with antiphospholipid syndrome (APS). In those cases, a so-called second-line treatment protocol is used in addition to conventional therapy strategies. This manuscript is a report on three APS pregnant patients who were successfully treated with plasma exchange (PE) (two cases) or with immunoadsorption (IA) (one case) as a second-line treatment strategy. The efficacy of these procedures in removing anticardiolipin (aCL) and anti-β(2)glycoprotein I (aβ(2)GPI) antibodies from blood was evaluated. Serum samples were collected before and after 87 apheretic treatment sessions. Serum IgG/M aCL and IgG/M aβ(2)GPI antibodies were determined using an "in-house" enzyme-linked immunosorbent assay and showed that all three patients had medium/high IgG aCL and aβ(2)GPI titers. All three women had a successful pregnancy. A significant decrease in IgG aCL (P = 0.0001) and aβ(2)GPI (P = 0.0001) antibody titers was observed after PE and IA sessions. There was moreover a significant, steady fall in serum IgG aCL pretreatment levels during the course of all three pregnancies (P = 0.0001, P = 0.0001, P = 0.001). The fall in IgG aβ(2)GPI was significant in two of the patients (P = 0.0001, P = 0.0001) both with high antibody titers, but not in one with medium antibody titers, who was treated with PE (P = 0.17).



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May 21, 2014