Larsen R S, Cebra C K, Wild M A
Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins 80523, USA.
J Zoo Wildl Med. 2000 Jun;31(2):236-9. doi: 10.1638/1042-7260(2000)031[0236:DATOOU]2.0.CO;2.
A captive 5-yr-old castrated male Rocky Mountain wapiti (Cervus elaphus nelsoni) developed stranguria. Rectal palpation and physical examination indicated urethral obstruction that was subsequently relieved by urethrostomy and required only minimal aftercare. The wapiti was able to urinate freely after surgery; however, the obstruction recurred 27 mo later. Urethral catheterization relieved the second obstruction, which was caused by a large calculus composed of calcium carbonate and magnesium carbonate. Urolithiasis may have been associated with a diet high in calcium, and urethral obstruction may have been associated with castration at an early age. The wapiti continued to urinate freely 9 mo after relief of the second obstruction and 3 yr after the initial surgery.
一只圈养的5岁去势雄性落基山马鹿（Cervus elaphus nelsoni）出现排尿困难。直肠触诊和体格检查表明存在尿道梗阻，随后通过尿道造口术解除了梗阻，术后仅需极少的后续护理。这只马鹿术后能够自由排尿；然而，27个月后梗阻复发。尿道插管解除了由碳酸钙和碳酸镁组成的大结石引起的第二次梗阻。尿路结石可能与高钙饮食有关，而尿道梗阻可能与幼年去势有关。在第二次梗阻解除后9个月以及初次手术后3年，这只马鹿仍能自由排尿。
