Early Prediction of Acute Kidney Injury Among Patients Admitted to Surgical ICU

Acute Kidney Injury, Biomarkers

Early prediction of AKI can help to improve patients' outcome through early institution of the appropriate intervention, thus the current study hypothesizes that urine analysis for certain markers may provide an early knowledge about the possibility of oncoming kidney affection secondary to organ and tissue trauma affecting patients admitted to surgical ICU. The current study tries to evaluate the value of urinary markers as early predictors of possible development of AKI in patients admitted to surgical ICU.

All patients will be clinically evaluated for demographic and clinical data. Severity of injury and number of surgical interventions will be evaluated using the simplified Therapeutic Intervention Scoring System (TISS-28) and the extent of impact of associated diseases on patients' physiological and body organs' functions will be evaluated using the Acute Physiology and Chronic Health Evaluation (APACHE II) and sequential organ failure assessment (SOFA) . Higher scores indicate more severe illness and for the TISS-28 score, each therapeutic intervention will be assigned 1 to 4 points, and the points will be summed daily to obtain the overall score and higher score indicates a higher number of therapeutic interventions. Diagnosis of AKI Development of AKI within the first 48 hours after ICU admission and its staging will be defined according to the Acute Kidney Injury Network criteria. Each stage will be defined by the extent of change in serum creatinine level (∆SCr) as follows: Mild if Scr was increased by ≥0.3 mg/ml or ∆SCr was ≥1.5-2-fold from baseline, Moderate if ∆SCr was \>2-3-fold from baseline and Severe if ∆SCr was increase by \>3-fold from baseline . Laboratory investigations Blood samples will be sent for estimation of serum creatinine (SCr) . Urine samples will be sent for spot creatinine , UNGAL, KIM1.

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