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Feasibility of nephrinuria as a screening tool for the risk of pre-eclampsia : prospective observational study

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/63452

Title: Feasibility of nephrinuria as a screening tool for the risk of pre-eclampsia : prospective observational study
Authors: Zhai, Tianyue Browse this author
Furuta, Itsuko Browse this author →KAKEN DB
Akaishi, Rina Browse this author
Kawabata, Kosuke Browse this author
Chiba, Kentaro Browse this author
Umazume, Takeshi Browse this author →KAKEN DB
Ishikawa, Satoshi Browse this author
Yamada, Takahiro Browse this author →KAKEN DB
Morikawa, Mamoru Browse this author →KAKEN DB
Minakami, Hisanori Browse this author →KAKEN DB
Issue Date: 2016
Publisher: BMJ Publishing Group
Journal Title: BMJ Open
Volume: 6
Issue: 8
Start Page: e011229
Publisher DOI: 10.1136/bmjopen-2016-011229
Abstract: Objectives: To investigate the possibility of nephrinuria as a screening tool for the risk of pre-eclampsia (PE). Design: Prospective observational study. Setting: A single university hospital. Changes in urinary nephrin: creatinine ratio (NCR, ng/mg) and protein: creatinine ratio (PCR, mg/mg) in pregnancy were determined. Significant proteinuria in pregnancy (SPIP) was defined as PCR> 0.27. PE was diagnosed in women with both SPIP and hypertension. Participants: 89 pregnant women in whom neither hypertension nor SPIP was present at enrolment, providing 31, 125 and 93 random urine samples during first, second and third trimesters, respectively. Results: PE developed in 14 of the 89 women. NCR increased with increasing PCR in 14 women with PE (correlation coefficient, 0.862; p<0.0001). In contrast, NCR did not change significantly despite significant increases in PCR in 75 women with normotensive pregnancies defined as neither SPIP nor hypertension, indicating that there was little increase in nephrinuria over the physiological range of proteinuria in pregnancy. Relative risk of later development of PE among asymptomatic second and third trimester women with NCR (ng/mg) > 122 (95th centile value for 75 women with normotensive pregnancies) was 5.93 (95% CI 2.59 to 13.6; 60% (6/10) vs 10% (8/79)) and 13.5 (95% CI 3.31 to 55.0; 75% (6/8) vs 5.5% (2/36)), respectively, compared with women with NCR <= 122 at that time. Conclusions: Nephrinuria was unlikely to increase in normal pregnancy. A certain NCR cut-off may efficiently differentiate women at higher risk of PE.
Rights: http://creativecommons.org/licenses/by-nc/4.0/
Type: article
URI: http://hdl.handle.net/2115/63452
Appears in Collections:医学院・医学研究院 (Graduate School of Medicine / Faculty of Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 古田 伊都子

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