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18 February 2018 : Clinical Research  

Fetal Risks and Maternal Renal Complications in Pregnancy with Preexisting Chronic Glomerulonephritis

Yuehong Li1AD*, Wei Wang2EF, Yujuan Wang2BC, Qi Chen2E

DOI: 10.12659/MSM.905494

Med Sci Monit 2018; 24: CLR1008-1016

Abstract

BACKGROUND: Analysis the maternal and fetal risk predictors in pregnancy in conjunction with chronic glomerulonephritis (CGN) patients are helpful to understand the influence of kidney diseases on pregnancy and the effects of pregnancy on kidney diseases. The aim of this study was to determine the predictors of adverse maternal and fetal outcomes in CGN patients.

MATERIAL AND METHODS: Maternal and fetal outcomes in 64 pregnancies of CGN patients were retrospectively analyzed. We randomly selected 100 low-risk-pregnancy women without chronic kidney disease (CKD) at the same time as the control group. Clinical manifestations, laboratory data, medication, and outcomes during pregnancies of these patients were analyzed by univariate and logistic regression.

RESULTS: CGN patients were associated with higher adverse pregnancy outcomes versus general pregnancies. The gestational ages are shorter, and the incidence of preeclampsia, gestational hypertension, and abortion were increased. The rates of premature delivery, low birth weights, and intrauterine growth restriction were higher in the CGN group. Prenatal proteinuria and blood pressure were significantly increased compared with pre-pregnancy stage. Proteinuria (0.9±0.6 g/d vs. 0.5±0.3 g/d, P=0.032) and hypertension (6.9% vs. 3.4%, P=0.021) at 6 months after delivery were aggravated. Prenatal proteinuria ≥3.5 g/d (OR 12.22, 95%CI 3.16~47.32, P=0.001) was the maternal risk predictor in pregnancy. Prenatal blood pressure ≥160/110 mmHg (OR 8.97, 95%CI 1.69~47.53, P=0.010) and uric acid ≥363 μmol/L (OR 7.35, 95%CI 1.88~28.76, P=0.004) were the fetal risk predictors in pregnancy in conjunction with CGN patients.

CONCLUSIONS: Maternal-fetal risks are increased in pregnancies in conjunction with CGN patients. Prenatal proteinuria ≥3.5 g/d, BP ≥160/110 mmHg, and uric acid ≥363 μmol/L were the maternal and fetal risk predictors in pregnancy.

Keywords: Glomerulonephritis, Pregnancy Complications, renal insufficiency, chronic kidney disease

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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750