Clinical Immunology AO Ordine Mauriziano

Sant'Ambrogio di Torino, Italy

Clinical Immunology AO Ordine Mauriziano

Sant'Ambrogio di Torino, Italy

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Mekinian A.,Paris-Sorbonne University | Lazzaroni M.G.,University of Brescia | Kuzenko A.,Clinical Immunology AO Ordine Mauriziano | Alijotas-Reig J.,Autonomous University of Barcelona | And 17 more authors.
Autoimmunity Reviews | Year: 2015

In European multicenter study, we aimed to describe the real-life hydroxychloroquine use in APS patients during pregnancy and determine its benefit in refractory obstetrical APS.We analyzed the outcome of pregnancies treated by hydroxychloroquine in patients with APS or asymptomatic antiphospholipid (aPL) antibodies carriers.Thirty patients with APS with 35 pregnancies treated by hydroxychloroquine were analyzed. Comparing the outcome of pregnancies treated by the addition of hydroxychloroquine to previous pregnancies under the conventional treatment, pregnancy losses decreased from 81% to 19% (p. <. 0.05), without differences in the associated treatments. The univariate analysis showed that the previous intrauterine deaths and higher hydroxychloroquine amount (400. mg per day) were the factors associated with pregnancy outcome. Considering 14 patients with previous refractory obstetrical APS (n. =. 5 with obstetrical and thrombotic primary APS and n. =. 9 with purely obstetrical APS), all with previous pregnancy losses under treatment (aspirin with LMWH in 11 cases and LMWH in 3 cases), the addition of hydroxychloroquine resulted in live born babies in 11/14 (78%) cases (p. <. 0.05).Our study shows the benefit of hydroxychloroquine addition in patients with refractory obstetrical APS and raises the need of prospective studies to confirm our preliminary study. © 2015 Elsevier B.V.


PubMed | Clinical Immunology AO Ordine Mauriziano
Type: Journal Article | Journal: Minerva medica | Year: 2013

Antiphospholipid syndrome (APS) is an autoimmune disorder characterized by the association of antiphospholipid antibodies (aPL) with thrombosis and/or pregnancy loss: classification criteria were defined in the updated international consensus held in Sidney in 2005. Vascular and obstetric manifestations display partially different pathogenetic mechanisms. Thrombosis develop as a result of local procoagulative changes upon triggers influence (second-hit theory). Pregnancy morbidity is thought to be dependent on placental thrombosis and complement activation. The laboratory tests include Lupus Anticoagulant (LA), a functional assay, and anticardiolipin (aCL) and anti-2-glycoprotein I antibodies detected by solid phase enzyme-linked immunosorbent assay (ELISA). The LA testing is relatively standardized while theres still significant interlaboratory discrepancy in ELISA tests. Current APS criteria are under discussion: since for vascular and obstetric APS, different pathogenetic mechanisms have been shown, some criteria variation could also be contemplated. What is the weight of aPL antibodies in provoking thrombosis and which contribution could be expected from aPL per se is debated. As thrombosis is generally considered to be multi-factorial, each case needs a risk-stratified approach. Any primary prophylaxis, intensity and duration of secondary prophylaxis should take into account aPL profile, other cardiovascular risk factors and systemic autoimmune diseases associated. We look forward to the publication of recommendations of the leading experts in the field, developed during the recent 14th International Congress in Rio de Janeiro, Brazil.

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