Introduction:

severe multiple trauma is a pathology of epidemiological importance. One of the complications that increases baseline mortality on admission to intensive care units is the appearance of acute kidney injury. However, regarding the first and second level of hospital care, there are limited tools for its early detection, such as serum creatinine and cystatin C, limited to new determinations capable of detecting early glomerular damage.

Objective:

to know the association that exists between the alteration, characterized by an increase in the renal resistive index, with the diagnosis of acute kidney injury in patients with severe multiple trauma, supporting decision-making in the timely management of said pathology.

Material and methods:

a clinical, observational, descriptive and prospective study was carried out including patients with severe multiple trauma who were admitted to the ICU at Hospital General La Villa, CDMX, where data is collected through the measurement of the renal resistive index, serum creatinine, cystine C and the rate of uresis kilogram hour, at admission, 24, 48 and 72 hours later, analyzing the data obtained through measures of central tendency, mode, mean, median with association by p Pearson.

Results:

the association analysis using the Pearson’s p test as a test of association between acute kidney injury and alteration of the renal resistive index, showed significant association and sensitivity. Pearson’s association between patients with acute kidney injury who had alterations in IRR and Cystatin C was 0.475, showing similar sensitivity between the two clinical evaluation parameters.

Conclusions:

the quantification of the IRR in those patients with a diagnosis of severe multiple trauma is useful for the early detection of renal hypoperfusion and, secondary to it, the development of acute kidney injury, with the same sensitivity as the reports of markers such as cystatin C, being useful in units with few or no resources more specific and sensitive early acute kidney injury markers.

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