2016 ACVIM Forum Research Abstract Program

To date, five cats between the ages of four and eight years of age have completed the study. All cats accepted the study diet, weight loss was not noted over the course of the study in any cat, serum biochemical data were normal for all cats, and urine culture was negative for all cats when exiting the study. Total cystolith dissolution was achieved by Week 2 for three cats and two cats still had radiographic evidence of cystoliths by Week 4. One cat with persistent cystoliths had a single ammonium urate cystolith with a struvite nidus (normal pre and post-bile acids) and the other cat had multiple calcium oxalate cystoliths; cultures were negative for both cats. Recheck radiographs at two months for two cats with stone resolution on diet and the cat with calcium oxalate cystoliths (three month post-cystotomy) showed no evidence of cystolith recurrence.