4.7 Review

Prevalence and Risk Factors of Augmented Renal Clearance: A Systematic Review and Meta-Analysis

Journal

PHARMACEUTICS
Volume 14, Issue 2, Pages -

Publisher

MDPI
DOI: 10.3390/pharmaceutics14020445

Keywords

augmented renal clearance; critically ill; glomerular hyperfiltration; neurocritical care; GFR

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This study conducted a systematic review and meta-analysis to investigate the prevalence and risk factors of augmented renal clearance (ARC) in critically ill patients. The results showed a high prevalence of ARC in critically ill patients, especially in the neurocritical care and trauma ICU population. Young age, male sex, and trauma were identified as risk factors for ARC. This study is important for further research on optimal drug dosing in the setting of ARC.
Kidney function assessment in the critically ill overlooks the possibility for hyperfunctioning kidneys, known as augmented renal clearance (ARC), which could contribute to therapeutic failures in the intensive care unit (ICU). The aim of this research is to conduct a systematic review and meta-analysis of prevalence and risk factors of ARC in the critically ill. MEDLINE, Embase, Cochrane Library, CINAHL, Scopus, ProQuest Dissertations and Theses Global databases were searched on 27 October 2020. We included studies conducted in critically ill adults who reported the prevalence and/or risk factors of ARC. We evaluated study quality using the Joanna Briggs Institute appraisal tool. Case reports, reviews, editorials and commentaries were excluded. We generated a random-effects meta-analytic model using the inverse variance method and visualized the pooled estimates using forest plots. Seventy studies were included. The pooled prevalence (95% CI) was 39% (34.9-43.3). Prevalence for neuro, trauma, mixed and sepsis ICUs were 74 (55-87), 58 (48-67), 36 (31-41) and 33 (21-48), respectively. Age, male sex and trauma were associated with ARC with pooled OR (95% CI) of 0.95 (0.93-0.96), 2.36 (1.28-4.36), 2.60 (1.21-5.58), respectively. Limitations included variations in ARC definition, inclusion and exclusion criteria and studies design. In conclusion, ARC is prevalent in critically ill patients, especially those in the neurocritical care and trauma ICU population. Young age, male sex and trauma are risk factors for ARC in those with apparently normal renal function. Further research on optimal dosing of drugs in the setting of ARC is warranted. (Prospero registration: CRD42021246417).

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