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Prediction of renal dysfunction in patients with obstructive icterus

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Author(s): Raičević-Sibinović Suzana | Nagorni Aleksandar | Brzački Vesna | Radisavljević Mirjana

Journal: Medicinski Pregled
ISSN 0025-8105

Volume: 64;
Issue: 9-10;
Start page: 503;
Date: 2011;
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Keywords: Renal Insufficiency | Jaundice | Obstructive | Kidney Function Tests | Creatinine | Urine + chemistry | Predictive Value of tests

ABSTRACT
Introduction. Renal dysfunction is one of complications in patients with obstructive icterus. It is important to recognize it early and take adequate measure to prevent its occurrence. One third of the patients with obstructive icterus have deterioration of renal function before surgical intervention. The aim of the research was to assess the renal dysfunction markers in patients with obstructive icterus. The following factors were examined: diuresis, urinary sodium concentration, sodium excretory fraction, urine osmolality, osmotic concentration index, creatinine concentration index and renal index of lesion. Material and methods. The study included 85 patients with obstructive icterus (50 patients before surgical intervention and 35 after surgical intervention) and 30 patients without icterus as a control group. The patients with normal renal function before the development of the disease were included. Results. Malignant etiology was present in 39 patients and benign in 46 patients of the examined group. The evaluation parameters of renal function were examined in all of the patients. Creatinine concentration index led to the greatest change in the coefficient value of an internal consistency, showing that it was the best renal function marker in the examined group of patients with icterus. The next one was the urinary osmolality, since its exclusion would lead to a decrease in the value of Cronbach α coefficient to 0.06. Icterus and surgical intervention show statistically significant effects to change in the value of the markers of laboratory differentiation of renal function, observed as an entire set. Discussion and conclusion. The examination showed that the concentration clearances of creatinine and urine osmolality are the parameters which point to the probability of renal dysfunction occurrence in obstructive icterus.
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