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Urolithiasis in dogs. I: Mineral prevalence and interrelations of mineral composition, age, and sex.
Am J Vet Res. 1998 May; 59(5):624-9.AJ

Abstract

OBJECTIVE

To compile and statistically analyze selected data from a large number of canine urinary calculi.

SAMPLE POPULATION

11,000 specimens: 5,781 from female dogs, 5,215 from male dogs, and 4 from dogs of unrecorded sex.

PROCEDURE

Records were used to compile information from all canine calculi analyzed between July 1981 and January 1994. Interrelations of mineral composition, location of specimens within the urinary tract, age and sex of affected dogs, and number of previous episodes of urolithiasis were determined.

RESULTS

Approximately 70% of the specimens were from a first episode of urolithiasis. Calculi were located in the urinary bladder of 93.1% of females and 79.0% of males, and in the upper urinary tract of 4% of females and 2% of males. Calculi were found in multiple sites in 23.1% of males and 5.2% of females. Significantly higher proportions of struvite, apatite, and urate were found in uroliths from females; oxalate, cystine, silica, and brushite were significantly more prevalent in males. Sixty-one percent of specimens from males and 29% from females were composed of a single mineral substance. The most common mineral combination of 2 or more minerals included struvite and apatite. An additional 67 specimens from male dogs and 49 from female dogs contained other mineral combinations. In 48% of specimens from males and nearly 62% of specimens from females, the minerals formed several distinct layers of differing composition.

CONCLUSIONS

Male and female dogs from urinary calculi composed of 1 or more of several distinct minerals. Prevalence of canine uroliths differs between ages and between the sexes. Many specimens contain complex layering of minerals; most specimens were found in the urinary bladder.

CLINICAL RELEVANCE

Sex and age of dogs, mineral types of likely calculi in males versus females, and their anatomic location are important considerations for clinicians when evaluating risk in dogs with urolithiasis.

Authors+Show Affiliations

Urinary Stone Analysis Laboratory, School of Veterinary Medicine, University of California, Davis 95616, USA.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

9582968

Citation

Ling, G V., et al. "Urolithiasis in Dogs. I: Mineral Prevalence and Interrelations of Mineral Composition, Age, and Sex." American Journal of Veterinary Research, vol. 59, no. 5, 1998, pp. 624-9.
Ling GV, Franti CE, Ruby AL, et al. Urolithiasis in dogs. I: Mineral prevalence and interrelations of mineral composition, age, and sex. Am J Vet Res. 1998;59(5):624-9.
Ling, G. V., Franti, C. E., Ruby, A. L., Johnson, D. L., & Thurmond, M. (1998). Urolithiasis in dogs. I: Mineral prevalence and interrelations of mineral composition, age, and sex. American Journal of Veterinary Research, 59(5), 624-9.
Ling GV, et al. Urolithiasis in Dogs. I: Mineral Prevalence and Interrelations of Mineral Composition, Age, and Sex. Am J Vet Res. 1998;59(5):624-9. PubMed PMID: 9582968.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Urolithiasis in dogs. I: Mineral prevalence and interrelations of mineral composition, age, and sex. AU - Ling,G V, AU - Franti,C E, AU - Ruby,A L, AU - Johnson,D L, AU - Thurmond,M, PY - 1998/5/16/pubmed PY - 1998/5/16/medline PY - 1998/5/16/entrez SP - 624 EP - 9 JF - American journal of veterinary research JO - Am. J. Vet. Res. VL - 59 IS - 5 N2 - OBJECTIVE: To compile and statistically analyze selected data from a large number of canine urinary calculi. SAMPLE POPULATION: 11,000 specimens: 5,781 from female dogs, 5,215 from male dogs, and 4 from dogs of unrecorded sex. PROCEDURE: Records were used to compile information from all canine calculi analyzed between July 1981 and January 1994. Interrelations of mineral composition, location of specimens within the urinary tract, age and sex of affected dogs, and number of previous episodes of urolithiasis were determined. RESULTS: Approximately 70% of the specimens were from a first episode of urolithiasis. Calculi were located in the urinary bladder of 93.1% of females and 79.0% of males, and in the upper urinary tract of 4% of females and 2% of males. Calculi were found in multiple sites in 23.1% of males and 5.2% of females. Significantly higher proportions of struvite, apatite, and urate were found in uroliths from females; oxalate, cystine, silica, and brushite were significantly more prevalent in males. Sixty-one percent of specimens from males and 29% from females were composed of a single mineral substance. The most common mineral combination of 2 or more minerals included struvite and apatite. An additional 67 specimens from male dogs and 49 from female dogs contained other mineral combinations. In 48% of specimens from males and nearly 62% of specimens from females, the minerals formed several distinct layers of differing composition. CONCLUSIONS: Male and female dogs from urinary calculi composed of 1 or more of several distinct minerals. Prevalence of canine uroliths differs between ages and between the sexes. Many specimens contain complex layering of minerals; most specimens were found in the urinary bladder. CLINICAL RELEVANCE: Sex and age of dogs, mineral types of likely calculi in males versus females, and their anatomic location are important considerations for clinicians when evaluating risk in dogs with urolithiasis. SN - 0002-9645 UR - https://www.unboundmedicine.com/medline/citation/9582968/Urolithiasis_in_dogs__I:_Mineral_prevalence_and_interrelations_of_mineral_composition_age_and_sex_ L2 - https://medlineplus.gov/minerals.html DB - PRIME DP - Unbound Medicine ER -