Retrospective evaluation of the factors affecting etiology and prognosis of adult acute kidney injury

Abstract

Aim: Acute kidney injury (AKI) is still an important cause of morbidity and mortality. Several factors are effective in its frequency, etiology, prognosis and mortality. In our study, we aimed to demonstrate the etiology and prognostic factors of AKI.Methods: A total of 272 patients diagnosed with AKI, who were hospitalized in the nephrology department between January 2011 and December 2015, were included in the study. In addition to the demographic characteristics of patients, clinical and laboratory findings were evaluated retrospectively.Results: Forty-seven point four percent of patients were female and 52.6% were male. The mean age of the patients was 61.6 years, the mean length of hospital stay was 13.3 days, the number of hemodialysis sessions was 1.24 and the mortality rate was 4.8%. The need and number of hemodialysis sessions were significantly higher in older patients (>65 years). The need and number of hemodialysis sessions were higher in the renal AKI group (48.7%, 1.9). The length of hospital-stay was longer and mortality rate was higher in patients with renal AKI compared to the other groups (16.4 days, 8.8%). Mortality rate, length of hospital-stay, and number of hemodialysis sessions were found to be increased significantly in patients with infection (42%).Conclusion: Etiology and accompanying infection in AKI are the most important factors affecting mortality. In addition, anemia and advanced age increase the length of hospital stay and the need for hemodialysis.