Triple Antiphospholipid (aPL) Antibodies Positivity Is Associated With Pregnancy Complications in aPL Carriers: A Multicenter Study on 62 Pregnancies.

Objective: Antiphospholipid antibodies (aPL) are risk factors for thrombosis and adverse pregnancy outcomes (APO). The management of the so called "aPL carriers" (subjects with aPL positivity without the clinical criteria manifestations of APS) is still undefined. This study aims at retrospectively evaluating the outcomes and the factors associated with APO and maternal complications in 62 pregnant aPL carriers. Methods: Medical records of pregnant women regularly attending the Pregnancy Clinic of 3 Rheumatology centers from January 1994 to December 2015 were retrospectively evaluated. Patients with concomitant autoimmune diseases or other causes of pregnancy complications were excluded. Results: An aPL-related event was recorded in 8 out of 62 patients (12.9%) during pregnancy: 2 thrombosis and 6 APO. At univariate analysis, factors associated with pregnancy complications were acquired risk factors (p:0.008), non-criteria aPL manifestations (p:0.024), lupus-like manifestations (p:0.013), and triple positive aPL profile (p:0.001). At multivariate analysis, only the association with a triple aPL profile was confirmed (p:0.01, OR 21.3, CI 95% 1.84-247). Patients with triple aPL positivity had a higher rate of pregnancy complications, despite they were more frequently receiving combined treatment of low dose aspirin (LDA) and low molecular weight heparin (LMWH) at prophylactic dose. Conclusion: This study highlights the importance of risk stratification in pregnant aPL carriers, in terms of both immunologic and non-immunologic features. Combination treatment with LDA and LMWH did not prevent APO in some cases, especially in carriers of triple aPL positivity. Triple positive aPL carriers may deserve additional therapeutic strategies during pregnancy.

The European Registry on Obstetric Antiphospholipid Syndrome (EUROAPS): A survey of 247 consecutive cases.

AIM: To analyse the clinical features, laboratory data, foetal-maternal outcomes, and follow-up in a cohort of 247 women with obstetric antiphospholipid syndrome (OAPS). METHODS: The European Registry on APS became a Registry within the framework of the European Forum on Antiphospholipid Antibody projects and placed on a website in June 2010. Cases with obstetric complaints related to aPL who tested positive for aPL prospectively and retrospectively were included. The three-year survey results are reported. RESULTS: 338 women with 1253 pregnancy episodes were included; 915 were historical and 338 were latest episodes. All these women tested positive for aPL. 247 of the 338 fulfilled the Sydney criteria. According to the laboratory categories, 84/247 were in category I, 42 in IIa, 66 in IIb and 55 in IIc. Obstetric complications other than foetal losses, appeared in 129 cases (52.2%). 192 (77.7%) had a live birth and 55 (22.3%) did not. The latter group of only 38 cases (69%) received adequate treatment and 17 (31%) did not. 177/247 (72%) women were put on heparin plus LDA. Thrombosis appeared in two during pregnancy and in 14 during the puerperium. 7 (3%) women evolved to complete SLE. CONCLUSIONS: OAPS shows differential characteristics than classical APS. All laboratory test categories are needed to avoid false-negative diagnoses. In some cases, complement levels could act as a serological marker. OAPS has very good foetal-maternal outcomes when treated. Thrombosis and progression to SLE in mothers with OAPS are scarce compared with "classical APS", suggesting that they have different aPL-mediated pathogenic mechanisms.

The efficacy of hydroxychloroquine for obstetrical outcome in anti-phospholipid syndrome: Data from a European multicenter retrospective study.

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 (400mg 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.

Bridging therapy in antiphospholipid syndrome and antiphospholipid antibodies carriers: case series and review of the literature.

Peri-operative management of patients on warfarin involves assessing and balancing individual risks for thromboembolism and bleeding. The timing of warfarin withdrawal and a tailored pre/postoperative management (including the substitution of heparin in place of warfarin, the so-called bridging therapy) is critical in patients with prothrombotic conditions. The antiphospholipid syndrome (APS) is the most common cause of acquired thrombophilia. In this particular subset of patients, as the risk of thrombosis is higher than in general population, bridging therapy can represent a real challenge for treating physicians. Only few studies have been designed to address this topic. We aim to report our experience and to review the available literature in the peri-procedural management of APS and antiphospholipid antibody-positive patients, reporting adverse events and attempting to identify potential risk factor associated with thrombosis or bleeding complications.

Resolutive pulmonary endarterectomy in a non-compliant patient with systemic lupus erythematosus and antiphospholipid syndrome.

Patients with chronic thromboembolic pulmonary hypertension (CTEPH) have poor prognosis, and pulmonary endarterectomy (PEA) is considered the treatment of choice for this condition. We report a case and review the literature of successful PEA for CTEPH due to antiphospholipid syndrome associated with systemic lupus erythematosus. The definitive and decisive approach needed to treat this high-risk patient with a history of comorbidity, long-term illness and poor compliance was found with a therapy of PEA.