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ULTRASONOGRAPHIC EVALUATION OF RENAL AUTOGRAFTS IN NORMAL CATS
Author(s) -
Pollard Rachel,
Nyland Thomas G.,
Bernsteen Lynda,
Gregory Clare R.,
Hornof William J.
Publication year - 1999
Publication title -
veterinary radiology and ultrasound
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.541
H-Index - 60
eISSN - 1740-8261
pISSN - 1058-8183
DOI - 10.1111/j.1740-8261.1999.tb02130.x
Subject(s) - medicine , echogenicity , cats , transplantation , kidney , renal artery , resistive index , external iliac artery , urology , surgery , kidney transplantation , muscle hypertrophy , ultrasonography
The purpose of this study was to determine changes in resistive index (RI) and renal size that occur in normal feline kidney autografts in the immediate post‐transplant period. Qualitative changes in renal parenchymal echogenicity and pelvic dilation were also noted, although this was not a major focus of the study. Fourteen domestic short‐haired cats underwent bilateral nephrectomies followed by an autograft of the right kidney to either the aorta or external iliac artery. Due to post‐operative complications, only nine of these cats completed the study. Ultrasonographic determination of the RI and renal size was made before transplantation and on days 1, 4, 7, 10, and 13 following transplantation. No significant changes in renal RI were identified during the study. Renal size increased significantly, peaking at 63% above baseline on day 7, and stayed elevated at 50% above baseline on day 13. There was no evidence of rejection or other abnormalities found on histologic evaluation of the transplanted kidneys. It was concluded that the RI of normal feline renal autografts does not significantly change in the immediate post‐operative period. However, significant renal enlargement, likely due to a combination of post‐operative edema and hypertrophy, does occur. This study provides baseline information for comparison with feline allografts in the immediate post‐transplant period.