Wu Hong-Fei
Department of Urology, BenQ Hospital Affiliated to Nanjing Medical University, Nanjing, Jiangsu 210019, China.
Zhonghua Nan Ke Xue. 2010 Jan;16(1):3-9.
Ejaculatory duct obstruction (EDO) is an important cause of male infertility. Etiologically it can be either congenital or acquired. The diagnosis of EDO mainly depends on history, physical examination, semen analysis, and transrectal ultrasonography (TRUS). The semen of EDO patients is characterized by low ejaculate volume, oligospermia or azoospermia, low pH, and absence of fructose. Technetium (99Tc(m)) Sulphur Colloid Seminal Vesicle Scintigraphy is of great value in the differential diagnosis of functional, partial and complete obstruction. Definite diagnosis of EDO can be established by vasography, seminal vesicle aspiration and seminal vesiculography. Transurethral resection of the ejaculatory ducts (TURED), as the standard method of treatment for EDO, is effective for many of the patients. And the assistant reproductive technology (ART) is required if the procedure fails to restore the patient's fertility.
射精管梗阻（EDO）是男性不育的一个重要原因。从病因学角度来看，它可以是先天性的，也可以是后天获得性的。EDO的诊断主要依靠病史、体格检查、精液分析以及经直肠超声检查（TRUS）。EDO患者的精液具有射精量少、少精子症或无精子症、pH值低以及无果糖的特点。锝（99Tc（m））硫胶体精囊闪烁扫描在功能性、部分性和完全性梗阻的鉴别诊断中具有重要价值。通过输精管造影、精囊抽吸术和精囊造影可明确诊断EDO。经尿道射精管切除术（TURED）作为EDO的标准治疗方法，对许多患者有效。如果该手术未能恢复患者的生育能力，则需要辅助生殖技术（ART）。
