Objective:

To establish the association of acute renal failure with demographic and clinical factors in patients hospitalized in an intensive care unit in a Colombian city.

Methods:

Analytical case-control study whose source of information was the patient's clinical history, in a sample of 130 cases and 184 controls; the cases were about patients older than 18 years, who had a glomerular filtration rate higher than 60 ml / min and who were able to fulfilled the AKIN criteria. With the independence test, it was established the effect of the factors of interest on the result (case-control), with the Odds Ratio (OR) as a measure of the association with its 95% confidence interval. The logistic regression allowed to control the presumable variables of confusion.

Results:

The average age of patients was 62.2 years (SD-16.7 years) with a predominance of men from the urban area and where hypertension stood out in 52.2% of them. On admission, 55.7% had coronary syndrome and 40% developed acute renal failure (ARF); 84.6% of the patients were stage according to the AKIN classification. The administration of saline in the first 24 hours of admission increased the possibility of ARF 1.8 times compared to those administered with Ringer's lactate (OR 1.8 CI (95% OR: 1.2-2.8), adjusting for other variables.

Conclusion:

The administration of ringer's lactate decreases the development of acute renal failure; also, age of the patient and if it came from the postoperative period, were the factors that were related to the presence of kidney disease.

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