Brinsko S P
Department of Large Animal Medicine and Surgery, College of Veterinary Medicine, Texas A&M University, College Station 77843-4475, USA.
J Am Vet Med Assoc. 2001 Feb 15;218(4):551-3, 527. doi: 10.2460/javma.2001.218.551.
Retrograde ejaculation was diagnosed in a 10-year-old Arabian stallion. Despite behavioral signs consistent with ejaculation, the collection receptacle of an artificial vagina remained devoid of semen on numerous occasions. Catheterization of the urinary bladder yielded large numbers of spermatozoa, even when an ejaculate was obtained, whereas low numbers (< 1 X 10(6)/ml) of spermatozoa are found in the bladder of clinically normal stallions after ejaculation. Endoscopic examination of the urethra, seminal colliculus, and bladder failed to reveal abnormalities. Medical treatment with imipramine hydrochloride apparently resulted in improvement initially, but was not curative. Further diagnostic and treatment measures were declined and the stallion was castrated. For stallions that seemingly fail to ejaculate or for ejaculates that contain lower seminal volumes or numbers of spermatozoa than expected, obtaining a urine sample after ejaculation via bladder catheterization is a simple diagnostic procedure that may be used to investigate the possibility of retrograde ejaculation.
一匹10岁的阿拉伯种马被诊断为逆行射精。尽管有与射精相符的行为迹象，但人工阴道的收集容器在多次采精时都没有精液。即使采到了精液，导尿时膀胱中也有大量精子，而临床正常种马射精后膀胱中的精子数量较少（<1×10⁶/ml）。对尿道、精阜和膀胱进行内镜检查未发现异常。盐酸丙咪嗪药物治疗最初似乎有改善，但未能治愈。马主拒绝了进一步的诊断和治疗措施，于是对该种马实施了去势手术。对于看似不射精或精液量或精子数量低于预期的种马，射精后通过膀胱导尿获取尿液样本是一种简单的诊断方法，可用于调查逆行射精的可能性。
