Urethral Defects in Geldings With Hematuria and Stallions With Hemospermia |
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Authors: | JIM SCHUMACHER DVM MS Diplomate ACVS DICKSON D VARNER DVM MS Diplomate ACT DAVID G SCHMITZ DVM MS Diplomate ACVIM TERRY L BLANCHARD DVM MS Diplomate ACT |
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Institution: | Department of Large Animal Medicine and Surgery, Texas Veterinary Medical Center. College of Veterinary Medicine, College Station, TX. |
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Abstract: | A urethral defect, presumed to communicate with the corpus spongiosum penis, caused hematuria in seven geldings and hemospermia in three stallions. Hematuria in geldings occurred at the end of urination. Hematuria was not observed in stallions with hemospermia. A linear urethral defect was identified, by endoscopic examination, on the convex surface the urethra at the level of the ischial arch of each horse. Cause of the defect was not determined. Two stallions were successfully treated for hemospermia, one by temporary subischial urethrostomy combined with sexual rest for 10 weeks, and the other by sexual rest alone for 6 months. The third stallion had hemospermia 6 weeks after urethrostomy. The geldings were successfully treated for hematuria, six by temporary subischial urethrostomy, and one by a subischial incision that extended into the corpus spongiosum penis but did not enter the lumen of the urethra. Efficacy of subischial urethrostomy for treatment of hemospermia was difficult to assess because of the small number of surgically treated stallions. In geldings, surgery eliminated hematuria, presumably by reducing vascular pressure in the corpus spongiosum penis during urination, thus allowing the urethral defect to heal. |
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