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Companion Animal Practice
Dietary management of canine urolithiasis
  1. Kit Sturgess

    Kit Sturgess graduated from Cambridge in 1986 and then spent six years in general practice. After some time as a lecturer in small animal internal medicine at the Royal Veterinary College and Bristol, he moved to work in private referral practice. In 2006, he co-developed a specialist referralonly clinic near Winchester. He holds a PhD for studies investigating the mucosal immune response to feline immunodeficiency virus, RCVS certificates in veterinary radiology and cardiology, and the RCVS diploma in small animal medicine. He is an RCVS specialist in small animal medicine.


ALTHOUGH a number of different types of urolith have been reported in dogs, including those associated with drugs and toxins such as sulphonamides, struvite (magnesium ammonium phosphate hexahydrate) accounts for approximately 40 per cent of canine urolithiasis cases and can be successfully treated with diet alone. Diet is also a central component in the treatment and management of calcium oxalate, urate and cystine uroliths, as well as playing a key role in preventing or reducing the risk of recurrence of virtually all types of urolith encountered. This article discusses some of the general current concepts regarding urolith formation, describes some dietary strategies that may be appropriate to try to prevent their recurrence, and briefly outlines possible predisposing factors.

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