Acute kidney injury during cisplatin therapy and associations with kidney outcomes 2 to 6 months post-cisplatin in children: a multi-centre, prospective observational study
Pediatric nephrology (Berlin, Germany)(2022)
Abstract
Background Few studies describe acute kidney injury (AKI) burden during paediatric cisplatin therapy and post-cisplatin kidney outcomes. We determined risk factors for and rate of (1) AKI during cisplatin therapy, (2) chronic kidney disease (CKD) and hypertension 2–6 months post-cisplatin, and (3) whether AKI is associated with 2–6-month outcomes. Methods This prospective cohort study enrolled children (aged < 18 years at cancer diagnosis) treated with cisplatin from twelve Canadian hospitals. AKI during cisplatin therapy (primary exposure) was defined based on Kidney Disease: Improving Global Outcomes (KDIGO) serum creatinine criteria (≥ stage one). Severe electrolyte abnormalities (secondary exposure) included ≥ grade three hypophosphatemia, hypokalemia, or hypomagnesemia (National Cancer Institute Common Terminology Criteria for Adverse Events v4.0). CKD was albuminuria or decreased kidney function for age (KDIGO guidelines). Hypertension was defined based on the 2017 American Academy of Pediatrics guidelines. Results Of 159 children (median [interquartile range [IQR]] age: 6 [2–12] years), 73/159 (46%) participants developed AKI and 55/159 (35%) experienced severe electrolyte abnormalities during cisplatin therapy. At median [IQR] 90 [76–110] days post-cisplatin, 53/119 (45%) had CKD and 18/128 (14%) developed hypertension. In multivariable analyses, AKI was not associated with 2–6-month CKD or hypertension. Severe electrolyte abnormalities during cisplatin were associated with having 2–6-month CKD or hypertension (adjusted odds ratio (AdjOR) [95% CI]: 2.65 [1.04–6.74]). Having both AKI and severe electrolyte abnormalities was associated with 2–6-month hypertension (AdjOR [95% CI]: 3.64 [1.05–12.62]). Conclusions Severe electrolyte abnormalities were associated with kidney outcomes. Cisplatin dose optimization to reduce toxicity and clear post-cisplatin kidney follow-up guidelines are needed. Graphical abstract A higher resolution version of the Graphical abstract is available as Supplementary information
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Key words
Acute kidney injury,Chronic kidney disease,Cisplatin nephrotoxicity,Epidemiology,Hypertension,Paediatric nephrology
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