CANINE URETERAL ECTOPIA - AN ANALYSIS OF 175 CASES AND COMPARISON OF SURGICAL TREATMENTS

The case histories of 175 dogs with ureteral ectopia were reviewed; th ere were 156 females and 19 males, Golden retrievers, labrador retriev ers and Skye terriers appeared to be over-represented. Their median ag e when examined was 10 months, and the males were significantly older than the females, Fifty-six animals were affected bilaterally, 50 were affected an the left side alone and 69 on the right side alone, One h undred and twenty-two cases had other abnormalities and 67 had more th an one; they included hydro-ureter, hydronephrosis, pyelonephritis, bl adder hypoplasia and congenital incompetence of the urethral sphincter mechanism. Forty-one cases were not treated, and the other 134 were t reated by ureteronephrectomy, extravesicular ureteric transplantation or intravesicular ureteric transplantation. One hundred and twelve cas es were available for follow-up for a median period of over two years (range one month to 15 years). The response to surgery and the inciden ce of complications was similar after each method of treatment. Sixty- five of the 112 cases were cured of incontinence and 26 were improved, The complication rate (14 per cent overall) was similar for each proc edure although different types of complications occurred. Hydronephros is occurred most commonly after extravesicular transplantation and dys uria occurred most commonly after intravesicular transplantation.