Effect of a struvite dissolution diet in cats with naturally occurring struvite urolithiasis

Author:

Tefft Karen M1ORCID,Byron Julie K2ORCID,Hostnik Eric T2,Daristotle Leighann3,Carmella Victoria3,Frantz Nolan Z3

Affiliation:

1. Department of Clinical Sciences, North Carolina State University, Raleigh, NC, USA

2. Department of Veterinary Clinical Sciences, The Ohio State University, Columbus, OH, USA

3. Blue Buffalo Company, Wilton, CT, USA

Abstract

Objectives The aim of the study was to determine the efficacy of the low struvite relative supersaturation diet in dissolution of feline struvite cystoliths. Methods This was a prospective, open-label, two-center study. Twelve client-owned cats were enrolled based on the radiographic appearance of their uroliths and urinalysis parameters. Cats were fed the test diet exclusively for up to 56 days. Cats were radiographed every other week until radiographic evidence of dissolution occurred or the end of the study period was reached. Cats with radiographically apparent uroliths at the end of the study period underwent cystotomy for stone retrieval and analysis. Results Nine of the 12 cats completed the study. Eight experienced radiographic dissolution; seven of these had complete dissolution within the first month of treatment. One cat, whose owner declined cystotomy after partial dissolution at day 56, had complete radiographic resolution at 70 days of treatment. Two calcium oxalate urolith cores were removed from a cat that had partial radiographic dissolution. Conclusions and relevance The test diet was successful in dissolving suspected struvite cystoliths. As this diet is suitable for maintenance feeding of adult cats, it may be a suitable choice for long-term prevention of feline struvite urolithiasis.

Funder

Blue Buffalo Company, Ltd.

Publisher

SAGE Publications

Subject

Small Animals

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