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Management and outcomes of pregnancy with or without lupus nephritis: a systematic review and meta-analysis

Authors Wu JY, Ma JH, Zhang WH, Di W

Received 24 December 2017

Accepted for publication 21 March 2018

Published 11 May 2018 Volume 2018:14 Pages 885—901


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Professor Deyun Wang

Jiayue Wu,1–3,* Jinghang Ma,1,2,* Wei-Hong Zhang,3 Wen Di1,2

1Department of Obstetrics and Gynecology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, People’s Republic of China; 2Shanghai Key Laboratory of Gynecologic Oncology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, People’s Republic of China; 3International Centre for Reproductive Health (ICRH), Ghent University, Ghent, Belgium

*These authors contributed equally to this work

Background: Although it is well established that systemic lupus erythematosus (SLE) negatively affects pregnancy outcomes, there is insufficient evidence on the effect of lupus nephritis (LN) on antenatal management and pregnancy outcomes. We performed a systematic review and meta-analysis to determine the association of LN with management and pregnancy outcomes in SLE patients.
Methods: Embase, Medline, Cochrane, and were carefully searched for relevant English and Chinese language studies. A total of 2,987 articles were reviewed. Data were extracted that compared management and pregnancy outcomes in SLE pregnant women with LN vs without LN. Risk of bias was assessed by a modified version of the Newcastle-Ottawa Scale and the STROBE checklist. Combined odds ratios (OR) and 95% confidence intervals (CI) were obtained and sensitivity analysis was performed using RevMan 5.3 software.
Results: Sixteen studies, including 1,760 pregnant patients with SLE, were included. Gestational hypertension (OR=5.65, 95% CI=2.94–10.84), preeclampsia (OR=2.84, 95% CI=1.87–4.30), SLE flare (OR=2.66, 95% CI=1.51–4.70), renal flare (OR=15.18, 95% CI=5.89–39.14), proteinuria (OR=8.86, 95% CI=4.75–16.52), and hypocomplementemia (OR=2.86, 95% CI=1.68–4.87) were significantly affected in pregnant women with LN. Anti-Sjögren’s syndrome-related antigen A/Ro autoantibodies were negatively associated with pregnant women with LN (OR=0.57, 95% CI=0.33–0.98). Pregnant women with LN presented a significant decrease in live births (OR=0.62, 95% CI=0.49–0.80) and a significant increase in preterm births (OR=1.92, 95% CI=1.49–2.49) and fetal growth restriction (OR=1.43, 95% CI=1.08–1.91). Regarding antenatal management, steroids (OR=2.48, 95% CI=1.59–3.87) and immunosuppressant treatment (OR=6.77, 95% CI=3.30–13.89) were more frequently used in women with LN.
Conclusion: This review identified a significant association between the aforementioned outcomes and SLE pregnant patients with LN. In patients with SLE, LN increased the risks for adverse pregnancy outcomes and the use of medication. Therefore, special treatment and close monitoring should be allocated to pregnant women with LN.

Keywords: systemic lupus erythematosus, lupus nephritis, maternal outcomes, fetal outcomes, antenatal management

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