{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,2]],"date-time":"2026-09-02T22:11:04Z","timestamp":1788387064562,"version":"build-2803163510"},"reference-count":60,"publisher":"MDPI AG","issue":"23","license":[{"start":{"date-parts":[[2021,11,29]],"date-time":"2021-11-29T00:00:00Z","timestamp":1638144000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100004587","name":"Instituto de Salud Carlos III","doi-asserted-by":"publisher","award":["FIS-PI18\/00912"],"award-info":[{"award-number":["FIS-PI18\/00912"]}],"id":[{"id":"10.13039\/501100004587","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100006541","name":"Comunidad de Madrid","doi-asserted-by":"publisher","award":["B2017\/BMD-3804 MITIC-CM"],"award-info":[{"award-number":["B2017\/BMD-3804 MITIC-CM"]}],"id":[{"id":"10.13039\/501100006541","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCM"],"abstract":"<jats:p>Introduction: At present, we are witnessing an increase in preeclampsia, especially the most severe forms, which are associated with an increased risk of maternal-perinatal morbidity and mortality. As a severity criterion, acute kidney injury (AKI) has been associated with a worse prognosis, and for this reason, the maternal and perinatal variables associated with AKI in patients with severe preeclampsia (SP) were analysed in this study. Methods: An observational, retrospective, single-centre study of patients with SP treated at a tertiary hospital between January 2007 and December 2018 was conducted. The case criteria based on the criteria established by the ACOG Practice Guidelines for Gestational Hypertension and Preeclampsia. AKI is considered when serum creatinine exceeds 1.1 mg\/dL in a pregnant woman with previously normal renal function. In patients with existing chronic kidney disease (CKD), it is referred to as AKI if the baseline serum creatinine increases by 1.5 fold. Pregestational, gestational and postpartum variables were analysed up to 12 weeks postpartum using univariate and multivariate logistic regression analysis. Results: During the study period, 76,828 births were attended, and 303 pregnant women were diagnosed with SP. The annual incidence of SP increased gradually throughout the study period, reaching 1.79\/100 births\/year in 2018. Acute kidney injury (AKI) occurred in 24.8% of the patients. The multivariate analysis revealed an increased association with a history of previous CKD, the use of assisted reproductive techniques and caesarean section. Uric acid and thrombotic microangiopathy (TMA) had a high correlation with AKI. Indications for caesarean section are associated with AKI in SP. Regarding perinatal outcomes in cases of AKI, there was a higher percentage of neonates who required foetal lung maturation with steroids and an increased need for NICU admission. No case of maternal death was recorded; however, an increase in neonatal mortality was found among patients who did not develop AKI. After 12 weeks postpartum, 72 patients were referred to the nephrology consultation for persistent hypertension, proteinuria or renal failure. Conclusions: In preeclampsia, AKI is a common complication, especially among patients with a history of CKD, those who became pregnant using assisted reproduction techniques and those who delivered via caesarean section. The perinatal impact of AKI is mainly centred on a higher rate of NICU admission and a lower mortality rate. Among biochemical and haematological markers, the uric acid level prior to renal failure has a direct and significant correlation with the risk of AKI, as does the development of TMA in patients with preeclampsia. Therefore, the monitoring of renal function in cases of preeclampsia should be strict, and referral for a nephrology consultation may be necessary in some cases.<\/jats:p>","DOI":"10.3390\/jcm10235629","type":"journal-article","created":{"date-parts":[[2021,12,1]],"date-time":"2021-12-01T01:43:22Z","timestamp":1638323002000},"page":"5629","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Maternal-Perinatal Variables in Patients with Severe Preeclampsia Who Develop Acute Kidney Injury"],"prefix":"10.3390","volume":"10","author":[{"given":"Patrocinio","family":"Rodr\u00edguez-Benitez","sequence":"first","affiliation":[{"name":"Department of Public and Maternal and Child Health, School of Medicine, Complutense University of Madrid, 28040 Madrid, Spain"},{"name":"Department of Obstetrics and Gynecology, University Hospital Gregorio Mara\u00f1\u00f3n, 28009 Madrid, Spain"},{"name":"Health Research Institute Gregorio Mara\u00f1\u00f3n, 28009 Madrid, Spain"},{"name":"Department of Nephrology, University Hospital Gregorio Mara\u00f1\u00f3n, 28009 Madrid, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Irene","family":"Aracil Moreno","sequence":"additional","affiliation":[{"name":"Department of Public and Maternal and Child Health, School of Medicine, Complutense University of Madrid, 28040 Madrid, Spain"},{"name":"Department of Obstetrics and Gynecology, University Hospital Gregorio Mara\u00f1\u00f3n, 28009 Madrid, Spain"},{"name":"Health Research Institute Gregorio Mara\u00f1\u00f3n, 28009 Madrid, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cristina","family":"Oliver Barrecheguren","sequence":"additional","affiliation":[{"name":"Department of Public and Maternal and Child Health, School of Medicine, Complutense University of Madrid, 28040 Madrid, Spain"},{"name":"Department of Obstetrics and Gynecology, University Hospital Gregorio Mara\u00f1\u00f3n, 28009 Madrid, Spain"},{"name":"Health Research Institute Gregorio Mara\u00f1\u00f3n, 28009 Madrid, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8190-8680","authenticated-orcid":false,"given":"Yolanda","family":"Cu\u00f1arro L\u00f3pez","sequence":"additional","affiliation":[{"name":"Department of Public and Maternal and Child Health, School of Medicine, Complutense University of Madrid, 28040 Madrid, Spain"},{"name":"Department of Obstetrics and Gynecology, University Hospital Gregorio Mara\u00f1\u00f3n, 28009 Madrid, Spain"},{"name":"Health Research Institute Gregorio Mara\u00f1\u00f3n, 28009 Madrid, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"F\u00e1tima","family":"Yllana","sequence":"additional","affiliation":[{"name":"Department of Public and Maternal and Child Health, School of Medicine, Complutense University of Madrid, 28040 Madrid, Spain"},{"name":"Department of Obstetrics and Gynecology, University Hospital Gregorio Mara\u00f1\u00f3n, 28009 Madrid, Spain"},{"name":"Health Research Institute Gregorio Mara\u00f1\u00f3n, 28009 Madrid, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pilar","family":"Pintado Recarte","sequence":"additional","affiliation":[{"name":"Department of Public and Maternal and Child Health, School of Medicine, Complutense University of Madrid, 28040 Madrid, Spain"},{"name":"Department of Obstetrics and Gynecology, University Hospital Gregorio Mara\u00f1\u00f3n, 28009 Madrid, Spain"},{"name":"Health Research Institute Gregorio Mara\u00f1\u00f3n, 28009 Madrid, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Coral Bravo","family":"Arribas","sequence":"additional","affiliation":[{"name":"Department of Public and Maternal and Child Health, School of Medicine, Complutense University of Madrid, 28040 Madrid, Spain"},{"name":"Department of Obstetrics and Gynecology, University Hospital Gregorio Mara\u00f1\u00f3n, 28009 Madrid, Spain"},{"name":"Health Research Institute Gregorio Mara\u00f1\u00f3n, 28009 Madrid, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1309-7510","authenticated-orcid":false,"given":"Melchor","family":"\u00c1lvarez-Mon","sequence":"additional","affiliation":[{"name":"Department of Medicine and Medical Specialities, University of Alcala, 28801 Alcala de Henares, Spain"},{"name":"Ram\u00f3n y Cajal Institute of Sanitary Research (IRYCIS), 28034 Madrid, Spain"},{"name":"Immune System Diseases-Rheumatology, Oncology Service an Internal Medicine, University Hospital Pr\u00edncipe de Asturias, (CIBEREHD), 28806 Alcala de Henares, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2588-1708","authenticated-orcid":false,"given":"Miguel A.","family":"Ortega","sequence":"additional","affiliation":[{"name":"Department of Medicine and Medical Specialities, 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