Introduction:

Acute kidney injury associated with pregnancy or obstetric complications (PR-AKI) is a disease that occurs due to multiple etiologies of which little has been studied, with an estimated mortality of 4.3%.

Objective:

To analyze the evolution of patients with acute kidney injury secondary to obstetric complications (PR-AKI) who received continuous renal replacement therapy (CRRT) in the Intensive Care Unit of the Hospital de la Mujer de Morelia, Michoacán.

Material and methods:

Retrospective, longitudinal, descriptive study. A review of the records of patients who required CRRT secondary to obstetric complications was carried out during January 2013-December 2019. The Student’s t test was applied, considering the statistically significant results if p < 0.05.

Results:

Thirteen patients who required CRRT were included. The mean age of the patients was 26.18 years. The CRRT criteria were: AKI grade 2 or 3 and RIFLE stage injury or failure and potassium ≥ 6.5 mEq/L; urea ≥ 150 mg/dL; urinary index ≤ 0.5 mL; pH < 7.10 and HCO3 ≤ 20 mEq/L; SCr ≥ 2.4 mg/dL; water overload > 10%; BUN > 30 mg/dL.

Conclusions:

The incidence of women requiring CRRT is 3.2 cases/100 obstetric complications. Ninety-two percent of the patients had recovery of renal function while the progression to chronic kidney disease dependent on other modalities of renal replacement therapy was 8%.