Abstract
There is an increasing number of young adults living with congenital heart disease (CHD). The goal of this study was to ascertain the frequency of acute kidney injury (AKI) as well as the risk factors and outcomes associated with AKI in young adults with CHD after a surgical procedure. This was a single-center retrospective cohort study including all patients 18 to 40 years of age with a diagnosis of CHD admitted to a quaternary care children's hospital cardiac intensive care unit postoperatively from 2004 to 2015. We defined AKI using the Kidney Disease Improving Global Outcomes criteria for serum creatinine. We explored potential susceptibilities and exposures for AKI using multivariable logistic regression and determined the association of AKI with duration of mechanical ventilation and length of stay using Poisson regression. In 699 consecutively admitted patients AKI occurred in 13.2%. Suspected sepsis (odds ratio [OR], 2.87; 95% confidence interval [CI], 1.17 to 7.05), exposure to calcineurin inhibitors (OR, 5.80; 95% CI, 1.06 to 31.59), vancomycin (OR, 3.35; 95% CI, 1.11 to 10.14), and piperacillin-tazobactam (OR,4.12; 95% CI, 1.23 to 13.78) increased the odds of AKIeven after controlling for age, ejection fraction, recent cardiac catheterization, repeat cardiopulmonary bypass, bypass time, cross-clamp time, and other potential nephrotoxic medications. AKI was associated with a longer duration of mechanical ventilation (OR, 1.47; 95% CI, 1.15 to 1.89) and intensive care unit length of stay (OR, 1.50; 95% CI, 1.30 to 1.72). AKI is common in young adults with CHD postoperatively and is associated with negative outcomes. The results highlight the importance future research and clinical efforts aimed at prevention and improved management of AKI in this patient group.
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