Page 1187 - Clinical Small Animal Internal Medicine

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Table 123.1 Summary of the signalment of cats and dogs with each type of stone

Dogs Cats
Breed Sex Age Breed Sex Age
Cystine English bulldog, Newfoundland, dachshund, Male dogs much more Young to middle‐aged Very rare in cats Males equal to Any age, average 3–5
Irish terrier, basset hound, bullmastiff, commonly than females dogs (3–8 years), female years or older
Rottweiler,mastiff, Australian cattle dog, (except in exception in
Australian shepherd, Chihuahua, Basenji, Newfoundlands) Newfoundlands
Scottish deerhound, Staffordshire terrier,
pitbull terrier, Welsh corgi, miniature pinscher,
silky terrier, bichon frise, Yorkshire terrier,
Dalmatian, borzoi, Shetland sheepdog,
Doberman, border collie
Oxalate Any breed but increased risk in miniature Male dogs more No age predilection Persian and Male neutered cats >7 but <10 years
schnauzer, bichon frise, Lhasa apso, Yorkshire commonly than (generally older than Himalayan cats more commonly than
terrier, miniature poodle, shih tzu, and other females; exception those with struvite females
small breed dogs. The predisposition for miniature schnauzer calculi)
smaller breeds may be related to their lower
urine volume, fewer numbers of micturitions,
and likely increased mineral concentrations
compared with larger breeds
Purine Black Russian terriers, shih tzus, miniature Pure urates are more Variable (in Dalmatians, Siamese, Birman, No sex Mean age 6.3 ± 0.17
schnauzers, Yorkshire terriers, Dalmatians, common in males than any age but often 1–4 Egyptian Mau predisposition in cats years; portosystemic
English bulldogs females years; other breeds 3–6 (male) vascular shunts (PSS) are
years) more common in cats
<1–5 years
Silicate German shepherds, Old English sheepdog, Male dogs much more Middle‐aged dogs Does not appear Does not appear to Does not appear to be an
miniature schnauzer, shih tzu, Lhasa apso, commonly than females to be a breed be a gender age predisposition
Yorkshire terrier, Pekingese, Labrador predisposition predisposition
retriever, golden retriever, cocker spaniel,
English bulldog, bichon frise, Rottweiler, and
mixed breeds
Struvite Any breed Female dogs more No age predilection Any breed No sex predilection, No age predisposition
Increased risk in miniature schnauzer, bichon commonly than males (middle‐aged but Himalayan may be slightly more but typically >6 years
frise, shih tzu, Lhasa apso, Yorkshire terrier, generally younger than Persian, domestic common in females
miniature poodle (and other small‐breed those with oxalate cats >2 years
dogs). The predisposition for smaller breeds calculi).
may be related to their lower urine volume, Calculi that occur in
fewer numbers of micturitions, and likely dogs younger than 1 year
increased urine mineral concentrations are frequently composed
compared with larger breeds of struvite