College of Veterinary Medicine, Washington State University, P.O. Box 647010, Pullman, Washington 99164-7010, USA.
Can Vet J. 2024 Feb;65(2):125-132.
A 3.5-year-old intact male Labrador retriever was seen for hematuria. The results of clinical pathology tests were unremarkable. However, urinalysis revealed dark, cloudy, alkalotic, and isosthenuric urine containing red and white blood cells, epithelial cells, and struvite crystals. Severe bilateral enlargement of ureters and markedly enlarged kidneys were identified on abdominal radiographs. Computerized tomography revealed extensive bilateral hydroureteronephrosis with no definitive cause of obstruction. The dog underwent bilateral ureteral tapering with bilateral neoureterocystostomy and placement of temporary bilateral ureteral stents and a cystostomy tube. The dog was monitored in the intensive care unit for 7 d after surgery and was discharged 9 d after surgery and after the stent and cystostomy tube were removed. The dog remained clinically normal and was reported to have been euthanized at 11 y of age (2021) due to unspecified causes. Key clinical message: There are several potential causes of severe bilateral hydroureteronephrosis in animals. Based on this case report, dogs with severe bilateral hydroureteronephrosis that are clinically asymptomatic may have favorable outcomes following bilateral ureteral reconstruction and neoureterocystostomy, even if a definitive cause is not identified.
一只 3.5 岁的未绝育雄性拉布拉多猎犬因血尿就诊。临床病理学检查结果无明显异常。然而，尿液分析显示尿液呈深褐色、混浊、碱性和等渗，含有红细胞、白细胞、上皮细胞和鸟粪石晶体。腹部 X 光片显示双侧输尿管明显肿大，肾脏明显肿大。计算机断层扫描显示广泛的双侧输尿管积水，无明确的梗阻原因。该犬接受了双侧输尿管缩窄术，并进行了双侧新输尿管膀胱吻合术，同时放置了临时双侧输尿管支架和膀胱造口管。术后该犬在重症监护病房中监测了 7 天，术后 9 天拔除支架和膀胱造口管后出院。该犬一直临床状况正常，并于 2021 年 11 岁（11 岁）时因不明原因被安乐死。主要临床信息：动物严重双侧输尿管积水有几种潜在原因。基于本病例报告，对于临床无症状的严重双侧输尿管积水犬，即使未确定明确病因，双侧输尿管重建和新输尿管膀胱吻合术后也可能有良好的预后。
