Synonyms

No known synonym

Name of the disease in English

Pyelonephritis

The disease in brief

It is a chronic infection of the urinary tract from the bladder, ureters to the kidneys by Corynebacterium renale, a bacteria specific to the disease - or by other bacteria causing pyogenic infection. Stagnation of urine in the bladder would participate in the development of the disease; it is found mainly in adult cows, especially after calving, rare in males. This ascending infection is most often sporadic, from carrier cows, but collective forms are possible with C. renale.

Clinic & diagnosis

Attention is drawn by a cow that keeps its tail raised and/or its posture camped after urinating, or small jets of urine and signs of pain, or it pushes to urinate in vain (or almost); these signs suggest a possible urinary tract infection. Cloudy urine, or containing pus or/and blood, or pink or even red urine (over the entire urination or at the end), or an odor of bovine ammonia suggest pyelonephritis. Colic is possible. The suspicion is reinforced by a rectal examination which shows a larger than normal left kidney. Pyelonephritis can also manifest itself more discreetly by diarrhea, accompanied by marked to severe proteinuria. The patient has a fluctuating appetite, loses weight and ends up dying.

Typical sign of the disease

No description

Pictures

See below

Diagnostic formulas

No description

Differential diagnosis

-Chronic Cystitis UR12

- Enzootic hematuria TX9

-N35 tubular necrosis

Confirm a suspicion?

The increase in the volume of a kidney associated with other signs of suspicion constitutes a correct basis for confirmation. The identification of the bacteria in the urine, a dosage of blood urea will support the suspicion.

Prognosis and treatment

Prolonged treatment for 3 weeks with penicillin may be effective if the disease is at the beginning. If the disease has already caused serious lesions, there may be a fear of temporary improvement followed by a relapse.

Prevention

-Isolate the sick and destroy infected litter

- Respect strict hygiene for insemination, urinary catheters and obstetric equipment

References

Veterinary Medicine-Pocket companion -9th Edition BLOOD DC-page 276