Assessment of Renal Function in Hyperthyroid Cats Managed with a Controlled Iodine Diet

Background: Previous studies have demonstrated that glomerular filtration rate (GFR) declines following treatment of hyperthyroidism independent of treatment modality. The post-treatment effects of Hill’s Prescription Diet y/d Feline on renal and muscle mass have not been evaluated. Hypothesis: Treatment of feline hyperthyroidism with y/d will create a euthyroid state with a decrease in renal function and an increase in muscle mass. Animals: Fifeteen client-owned cats with naturally occurring hyperthyroidism. Methods: Prospective observational study. Assessment of Renal Function in Hyperthyroid Cats Managed with a Controlled Iodine Diet Heather H. Vaske, DVM1 Laura Armbrust, DVM, DACVR1 Steven C. Zicker, DVM, PhD, DACVIM, DACVN2 Dennis E. Jewell, DVM, PhD, DACAN2 Gregory F. Grauer, DVM, MS, DACVIM1 1Department of Clinical Sciences, 106 Mosier Hall, Veterinary Health Center, Kansas State University, Manhattan, KS 66506; 2Hill’s Pet Nutrition, Inc, Pet Nutrition Center, PO Box 1658, Topeka, KS 66601. Corresponding Author: Gregory F. Grauer at 1800 Denison Ave, Manhattan, KS 66506, [email protected]