Management of pregnancy in patients with rare diseases is often guided by incomplete knowledge because of a lack of high-quality case control studies or single-centre experience. Pseudoxanthoma elasticum (PXE) is an autosomal recessive metabolic disorder that results in calcification of elastic fibres of the skin, retina, and arteries, leading to skin lesions, eventual central visual loss, and potential arterial insufficiency in most patients. It is due to mutations in ABCC6, which encodes the eponymous membrane transport protein. We review the literature on pregnancy in PXE, including the effects of the diseases on pregnancy and its complications, the effect of PXE on the foetus, and the effects of pregnancy on PXE, and conclude that in the majority of pregnancies in women with PXE, the outcome for mother, baby, and the disease is uneventful. We also provide recommendations for managing pregnancy in PXE.
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Comprehensive Literature Review of Obstetric Outcomes and Fetal Risk during Pregnancy with Pseudoxanthoma Elasticum.
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Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
Individuals with pseudoxanthoma elasticum (PXE) have often been advised against becoming pregnant due to a fear of the exacerbation of existing symptoms, likelihood of inheritance of the disease, and possible obstetric risks associated with the mother and child. PXE is a recessive multisystem disorder that leads to calcification of elastic tissues and fibers that can result in arterial rupture and gastrointestinal (GI) bleeding, possibly endangering the fetus and mother. PXE often manifests in skin lesions as well and the risk of exacerbation is a principal concern.
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