Non-Criteria Antiphospholipid Antibodies: Risk Factors for Endothelial Dysfunction in Women with Pre-Eclampsia
2020
Lara Belmar Vega | Gema Fernández Fresnedo | Juan Irure Ventura | Victoria Orallo Toural | Milagros Heras Vicario | Juan Carlos Ruiz San Millán | Emilio Rodrigo | Marcos López Hoyos
The association between unconventional antiphospholipid antibodies and pre-eclampsia in patients without thrombotic manifestations and its relationship with endothelial dysfunction after delivery has been studied poorly. We included 157 pregnant women, 122 of them having developed pre-eclampsia (56 non-severe and 66 severe). The determination of classical and unconventional, as well as pulse wave velocity and ankle-brachial index were performed at three months after delivery. The prevalence of unconventional antiphospholipid antibodies was 22.9% and 54.9% in patients included in control and pre-eclampsia groups, respectively (p = 0.001). The most frequent antiphospholipid antibody was IgM anti-phosphatidylserine/prothrombin in both cohorts. The presence of IgM anti-phosphatidylserine/prothrombin showed an association with the development of pre-eclampsia (OR = 5.4: CI 95% (2.0&ndash:14.9), p = 0.001) with an AUC of 0.744 (p <: 0.001). Likewise, IgM anti-phosphatidylserine/prothrombin exhibited a positive linear correlation with pulse wave velocity values (rho = 0.830: p <: 0.001) and an association with the presence of pulse wave velocity altered values (OR = 1.33: CI95% (1.10&ndash:1.59), p = 0.002). With regard to ankle braquial index values, the presence of IgM anti-phosphatidylserine/prothrombin displayed a weak negative correlation (rho = &minus:0.466: p <: 0.001) and an association with altered ankle braquial index values (OR = 1.08: CI 95% (1.04&ndash:1.13), p <: 0.001). In patients who developed preeclampsia, the presence of IgM anti-phosphatidylserine/prothrombin could be associated with endothelial dysfunction, causing alteration of cardiovascular parameters.
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