Clinical factors determining the efficacy of urinary bladder tumour treatments in dogs: surgery, chemotherapy or both?

Abstract

In a study of 44 canine patients suffering from histopathologically proven urinary bladder tumour with a high incidence of transitional cell carcinoma (TCC) (n = 35), a close relationship was found either between the disease-free period and the age (r = -0.40) of animals or between the survival times and the age (r = -0.62) of animals after treatment. In addition to the dog breeds known to be prone to have urinary bladder tumour, we found an additional potentially sensitive breed, the Hungarian Vizsla. The median survival times obtained by the applied treatment types were as follow: 'surgery and chemotherapy' (n = 8/44) 475 days, 'surgery alone' (n = 19/44) 240 days, 'chemotherapy alone' (n = 7/44) 31 days, and 'no treatment' (n = 10/44) 7 days (P < 0.001). According to the findings, chemotherapy combined with surgery completed in time is the most effective protocol in the treatment of urinary bladder tumour cases in dogs. A rational and more effective procedure for the assessment and treatment of urinary bladder tumour cases is presented.