Resistive index for kidney evaluation in normal and diseased cats.

Autor:	Tipisca V; Veterinary Medicine Faculty, University 'Ion Ionescu de La Brad', Iasi, Romania., Murino C; Interdepartmental Centre of Veterinary Radiology, University 'Federico II', Naples, Italy., Cortese L; Department of Veterinary Medicine and Animal Productions, University 'Federico II', Naples, Italy., Mennonna G; Interdepartmental Centre of Veterinary Radiology, University 'Federico II', Naples, Italy., Auletta L; IRCCS SDN, Naples, Italy., Vulpe V; Veterinary Medicine Faculty, University 'Ion Ionescu de La Brad', Iasi, Romania., Meomartino L; Interdepartmental Centre of Veterinary Radiology, University 'Federico II', Naples, Italy leonardo.meomartino@unina.it.
Jazyk:	angličtina
Zdroj:	Journal of feline medicine and surgery [J Feline Med Surg] 2016 Jun; Vol. 18 (6), pp. 471-5. Date of Electronic Publication: 2015 May 26.
DOI:	10.1177/1098612X15587573
Abstrakt:	Objectives: The objectives were to determine the resistive index (RI) in normal cats and in cats with various renal diseases, and to evaluate the effect of age on RI. Methods: The subjects were cats that had ultrasonography (US) of the urinary tract and RI measurement at our centre between January 2003 and April 2014. Based on clinical evaluation, biochemical and haematological tests, urinalysis and US, the cats were classified as healthy or diseased. RI measurements were made from the interlobar or arcuate arteries. Data were analysed for differences between the right and the left kidney, the two sexes, different age groups in healthy cats, and between healthy and diseased cats. Results: A total of 116 cats (68 males, 48 females) were included: 24 healthy and 92 diseased. In the healthy cats, RI (mean ± SD) differed significantly (P = 0.02) between the right kidney (0.54 ± 0.07) and the left kidney (0.59 ± 0.08). For the left kidney, RI was significantly higher in cats with chronic kidney disease (0.73 ± 0.12) and acute kidney injury (0.72 ± 0.08) (P = 0.0008). For the right kidney, RI was significantly higher in cats with chronic kidney disease (0.72 ± 0.11), acute kidney injury (0.74 ± 0.08), polycystic kidney disease (0.77 ± 0.11) and renal tumour (0.74 ± 0.001) (P <0.0001). There was no significant effect on RI value in either kidney in terms of age or sex. Conclusions and Relevance: RI could be considered a valuable diagnostic tool in cats, useful in the differential diagnosis of diffuse renal diseases. While it does not change with the age of the cat, ultrasonographers should be aware that RI may differ between the two kidneys. (© ISFM and AAFP 2015.)
Databáze:	MEDLINE
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