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CORRELATION BETWEEN RENAL RESISTANCE INDEX AND RENAL INDICATORS IN ADULT CATS

Abstract

Measurement of the renal resistance index (RI) by Doppler ultrasound is a common technique to detect problems in the renal vascular system. Despite its previous application in healthy felines with renal disease, its clinical utility is uncertain. This study sought to correlate IR with renal markers (creatinine, BUN/urea and urinary density) in healthy adult cats. Eighteen cats older than 5 years from Bogotá and Zipaquirá, Colombia, were used in a descriptive study. Peripheral blood samples were collected and serum BUN, urea and creatinine were measured. Doppler spectral color analysis was used to measure renal arterial flow. Data were analyzed with R® software (95% confidence level). The mean values obtained were: creatinine 1.14 ± 0.3 mg/dl, BUN 32.60 ± 6.9 mg/dl, urea 64.10 ± 17.64 mg/dl, urinary density 1052 ± 74.98 and IR 0.69 ± 0.071. There was a positive and statistically significant (P <0.05) correlation between urine density and IR. This study provides information on IR values and their relationship with renal markers in healthy cats, which could be useful as a diagnostic tool to compare with cats with renal disease and aid in the implementation of timely treatments

Keywords

resistance, renal, creatinine, urea, cats, Doppler fluxometry, , ultrasond, kidney


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