Dried solidified blood calculi in the urinary tract of cats.

We have noted an increased number of calculi submitted to the Gerald V. Ling Urinary Stone Analysis Laboratory, University of California, Davis, that do not contain crystalline material but appear to be composed of dried solidified blood (DSB). Canine and feline laboratory records from 1986-2003 were reviewed for samples composed of >99% DSB.

Corynebacterium urealyticum urinary tract infection in dogs and cats: 7 cases (1996-2003).

Objective: To identify clinical features of Corynebacterium urealyticum urinary tract infection in dogs and cats and antimicrobial susceptibility patterns of C urealyticum isolates.

Design: Retrospective study.

Animals: 5 dogs and 2 cats.

Management and outcome of cats with ureteral calculi: 153 cases (1984-2002).

Objective: To determine outcome of medical and surgical treatment in cats with ureteral calculi.

Design: Retrospective study.

Animals: 153 cats.

Clinical, clinicopathologic, radiographic, and ultrasonographic abnormalities in cats with ureteral calculi: 163 cases (1984-2002).

Objective: To determine clinical, clinicopathologic, radiographic, and ultrasonographic abnormalities in cats with ureteral calculi.

Design: Retrospective study.

Animals: 163 client-owned cats.

Incidence of catheter-associated urinary tract infection among dogs in a small animal intensive care unit.

Objective: To determine incidence of and possible risk factors for catheter-associated urinary tract infection (UTI) among dogs hospitalized in an intensive care unit and compare results of bacterial culture of urine samples with results of bacterial culture of catheter tips.

Design: Prospective study.

Animals: 39 dogs.

Molecular investigation of Escherichia coli strains associated with apparently persistent urinary tract infection in dogs.

Persistent Escherichia coli urinary tract infection (UTI) in dogs is a frustrating clinical problem. Affected dogs often appear to fail to respond to therapy or to reacquire infection shortly after therapy is completed. Urovirulence factors (UVFs) of the infecting E.

Unusual urethral calculi in two male dogs.

The clinical presentation and advanced size of the two calculi described in this report are both atypical and noteworthy. Both dogs were presented initially with signs of hematuria, stranguria, and perineal discomfort. Each calculus was visible on survey abdominal radiographs and was present in the region of the ischial arch.

Pancreatolithiasis and pancreatic pseudobladder associated with pancreatitis in a cat.

Pancreatolithiasis has been documented to occur naturally in humans and cattle. It has been associated with chronic pancreatitis in humans, and, when found, it may signify the presence of chronic pancreatic disease. This is the first report of a case involving a cat that had both an apparent obstruction with pancreatolithiasis as well as concurrent evidence of chronic pancreatic changes on histopathological evaluation.

Changes in proportion of canine urinary calculi composed of calcium oxalate or struvite in specimens analyzed from 1981 through 2001.

The objective of this report was to characterize 20-year changes in proportion of calcium oxalate (CaOx) calculi and struvite calculi in dogs, and associations with breed, age, and sex. In this retrospective study, results of analysis of urinary calculi from dogs were reviewed for specimens received between July 1, 1981, and December 31, 2001. Breed, sex, age, year of submission of the specimen, and mineral type(s) were analyzed statistically.

Antegrade pyelography for suspected ureteral obstruction in cats: 11 cases (1995-2001).

Objective: To determine sensitivity and specificity of radiography, ultrasonography, and antegrade pyelography for detection of ureteral obstructions in cats.

Design: Retrospective study.

Animals: 11 cats.

Identification of urovirulence traits in Escherichia coli by comparison of urinary and rectal E. coli isolates from dogs with urinary tract infection.

Spontaneously occurring urinary tract infection (UTI) in dogs was exploited as an experiment of nature to gain insights into UTI pathogenesis in humans. Concurrent urinary and rectal Escherichia coli isolates from 37 dogs with UTI were compared with respect to phylogenetic background, O antigens, and extended virulence genotype. In 54% of the UTI episodes, the dog's urinary and rectal isolates represented the same strain.

Detection of canine transitional cell carcinoma using a bladder tumor antigen urine dipstick test.

Canine transitional cell carcinoma (TCC) carries a poor prognosis in part due to late disease detection. The measurement of specific tumor markers shed in the urine may aid in sensitive, early disease detection and therefore improved prognosis. A 1-year prospective clinical trial was designed to assess the efficacy, sensitivity and specificity of the first generation Bard BTA test to diagnose TCC in dogs.