Risk of adverse pregnancy outcomes in women with CKD

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Abstract

CKD is increasingly prevalent in pregnancy. In the Torino-Cagliari Observational Study (TOCOS), we assessed whether the risk for adverse pregnancy outcomes is associated with CKD by comparing pregnancy outcomes of 504 pregnancies inwomenwithCKDto outcomes of 836 low-risk pregnancies inwomenwithout CKD. The presence of hypertension, proteinuria (>1 g/d), systemic disease, and CKD stage (at referral) were assessed at baseline. The following outcomes were studied: cesarean section, preterm delivery, and early preterm delivery; small for gestational age (SGA); need for neonatal intensive care unit (NICU); new onset of hypertension; new onset/doubling of proteinuria; CKD stage shift; general combined outcome (preterm delivery, NICU, SGA); and severe combined outcome (early preterm delivery, NICU, SGA). The risk for adverse outcomes increased across stages (for stage 1 versus stages 4-5: general combined outcome, 34.1% versus 90.0%; severe combined outcome, 21.4% versus 80.0%; P<0.001). In women with stage 1 CKD, preterm delivery was associated with baseline hypertension (odds ratio [OR], 3.42; 95% confidence interval [95% CI], 1.87 to 6.21), systemic disease (OR, 3.13; 95% CI, 1.51 to 6.50), and proteinuria (OR, 3.69; 95%CI, 1.63 to 8.36). However, stage 1 CKDremained associatedwith adverse pregnancy outcomes (general combined outcome) inwomenwithout baseline hypertension, proteinuria, or systemic disease (OR, 1.88; 95% CI, 1.27 to 2.79). The risk of intrauterine death did not differ between patients and controls. Findings fromthis prospective study suggest a baseline risk for adverse pregnancy-related outcomes linked to CKD.

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APA

Piccoli, G. B., Cabiddu, G., Attini, R., Vigotti, F. N., Maxia, S., Lepori, N., … Todros, T. (2015). Risk of adverse pregnancy outcomes in women with CKD. Journal of the American Society of Nephrology, 26(8), 2011–2022. https://doi.org/10.1681/ASN.2014050459

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