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Observational Study
. 2015 Sep;122(10):1340-8.
doi: 10.1111/1471-0528.13026. Epub 2014 Aug 19.

Acute kidney injury in major gynaecological surgery: an observational study

A J Vaught  1 , T Ozrazgat-Baslanti  1 , A Javed  1 , L Morgan  2 , C E Hobson  3   4 , A Bihorac  1
Affiliations
Observational Study

Acute kidney injury in major gynaecological surgery: an observational study

A J Vaught et al. BJOG. 2015 Sep.

Abstract

Objective: To assess the prevalence, outcomes and cost associated with acute kidney injury (AKI) defined by consensus risk, injury, failure, loss, and end-stage kidney (RIFLE) criteria after gynaecologic surgery.

Design: Retrospective single-centre cohort study.

Setting: Academic medical centre.

Sample: Two thousand three hundred and forty-one adult women undergoing major inpatient gynaecologic surgery between January 2000 and November 2010.

Methods: AKI was defined by RIFLE criteria as an increase in serum creatinine greater than or equal to 50% from the reference creatinine. We used multivariable regression analyses to determine the association between perioperative factors, AKI, mortality and cost.

Main outcome measures: AKI, combined major adverse events (hospital mortality, sepsis or mechanical ventilation), 90-day mortality and hospital cost.

Results: Overall prevalence of AKI was 13%. The prevalence of AKI was associated with the primary diagnosis. Of women with benign tumour surgeries, 5% (43/801) experienced AKI compared with 18% (211/1159) of women with malignant disease (P < 0.001). Only 1.3% of the whole cohort had evidence of urologic mechanical injury. In a multivariable logistic regression analysis, AKI patients had nine times the odds of a major adverse event compared to patients without AKI (adjusted odds ratio 8.95, 95% confidence interval 5.27-15.22). We have identified several readily available perioperative factors that can be used to identify patients at high risk for AKI after in-hospital gynaecologic surgery.

Conclusions: AKI is a common complication after major inpatient gynaecologic surgery associated with an increase in resource utilisation and hospital cost, morbidity and mortality.

Keywords: Acute kidney injury; gynecologic procedure; outcomes.

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Conflict of interest statement

Disclosure of Interests

The authors have no conflicts of interest to declare.

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References

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