Preoperative plasma FGF23 levels predict acute kidney injury in children: results of a pilot study
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Acute kidney injury (AKI) carries a large burden of morbidity and mortality. Early diagnosis may lead to better strategies of clinical care. Cardiac surgery involving cardiopulmonary bypass is associated with a significant incidence of AKI. The study objective was to determine whether or not preoperative fibroblast growth factor-23 (FGF23) levels differed among pediatric patients who did or did not develop AKI following cardiac surgery.
A nested case–control study was performed. FGF23 levels were measured pre- and post-operatively in 19 children without chronic kidney disease (CKD) who underwent cardiopulmonary bypass. Five patients developed AKI and 14 patients served as controls.
FGF23 levels in patients who developed AKI following cardiac surgery were elevated above normal levels, both pre-operatively and post-operatively compared with those patients who did not develop AKI. Relative risk of developing AKI when the pre-operative FGF23 level was >86 RU/mL was 2.0 (p = 0.033). Preoperative FGF23 levels correlated with post-operative fluid gain (correlation coefficient 0.607, p = 0.0059).
FGF23 may serve as a pre-operative prognostic indicator of the development of AKI following cardiopulmonary bypass surgery in pediatric patients without CKD. Identifying patients more likely to have AKI following surgery provides a means of achieving closer clinical management of AKI and fluid balance.
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- Preoperative plasma FGF23 levels predict acute kidney injury in children: results of a pilot study
Volume 28, Issue 6 , pp 959-962
- Cover Date
- Print ISSN
- Online ISSN
- Additional Links
- Acute kidney injury
- Cardiopulmonary bypass
- Industry Sectors
- Author Affiliations
- 1. Kidney Diseases, Lurie Children’s Hospital, 225 E Chicago Avenue, Box 37, Chicago, IL, USA
- 2. Intensive Care Medicine, Lurie Children’s Hospital, Northwestern University Feinberg School of Medicine, Chicago, IL, USA