Background: Preeclampsia is an important cause of pregnancy-related acute kidney injury (AKI). The objective of our study was to determine the incidence, characteristics, and maternal and neonatal outcomes of AKI in pregnant women with preeclampsia.
Materials And Methods: A prospective, observational, single-center study from January 2019 to January 2020. Patients admitted with preeclampsia were included. Patients with obstetric complications were excluded. AKI was defined according to Kidney Disease Improving Global Outcomes (KDIGO) 2012 criteria.
Results: Total number of patients with preeclampsia was 104, out of which 25% developed AKI. Among those with AKI, nulliparity (61.5%) was the most common risk factor for preeclampsia followed by prior history of preeclampsia (15.4%), pregestational hypertension (11.5%), pregestational diabetes mellitus (3.8%), and chronic kidney disease (3.8%). There was no significant difference in maternal mortality between those with AKI (15.4%) and without AKI (7.7%). Intermittent hemodialysis was needed in 15.4%. At the end of 90 days follow-up, complete recovery of renal function occurred in 53.8%, partial recovery in 23.1% and end-stage kidney disease (ESKD) in 7.7%. Perinatal death occurred in 26.9%, preterm birth in 23.1% and stillbirth in 7.7% of those with AKI and was not significantly different from those without AKI. The mean of birth weight in newborns delivered by patients with AKI (2.53 ± 0.73 kg) was significantly lower compared to those without AKI (2.82 ± 0.58 kg).
Conclusion: AKI was associated with a lower mean birth weight of newborns. Complete recovery of renal function was seen in 53.8% of patients with AKI and preeclampsia.
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