Khanzada Usman, Khan Sohail Ahmed, Hussain Munawar, Adel Hatem, Masood Kamran, Adil Syed Omair, Manohar Murli
Department of Radiology, Dow Institute of Radiology, Karachi, Pakistan.
Department of Research, Dow University of Health Sciences, Karachi, Pakistan.
World J Mens Health. 2017 Apr;35(1):22-27. doi: 10.5534/wjmh.2017.35.1.22.
In patients with erectile dysfunction, it is important to differentiate psychogenic from organic causes. Penile Doppler ultrasonography is a relatively inexpensive and minimally invasive tool for this purpose. This study was conducted to evaluate the causes of erectile dysfunction in an adult male population, using penile Doppler ultrasonography.
A retrospective study was conducted in a single center. All patients who presented with complaints of erectile dysfunction and underwent penile Doppler ultrasonography between July 2014 and June 2016 were included in this study. All examinations were performed using GE Voluson S6 and GE Logiq P5 devices. Following baseline scans, an intracavernosal injection of 20 μg of prostaglandin E1 was given. Peak systolic and end diastolic velocities were measured in each cavernosal artery. Patients with a peak systolic velocity of <25 cm/s were considered to have arterial insufficiency, while an end diastolic velocity of >5 cm/s was considered to indicate venous incompetence.
Out of 97 patients (mean age, 37.09±11.59 years; range, 19~69 years), 50 patients (51.5%) had normal findings, 24 patients (24.7%) had arterial insufficiency, 15 patients (15.5%) had a venous leak, and 8 patients (8.2%) patients had arterial insufficiency with a venous leak. Psychogenic erectile dysfunction was significantly higher among patients aged ≤40 years, while arterial insufficiency with or without a venous leak was significantly higher among patients aged >40 years (p=0.022).
A majority of the studied individuals demonstrated no organic cause of erectile dysfunction, thus confirming a high prevalence of the psychogenic etiology, particularly in relatively young individuals.
在勃起功能障碍患者中，区分心理性病因与器质性病因很重要。阴茎多普勒超声检查是用于此目的的一种相对廉价且微创的工具。本研究旨在使用阴茎多普勒超声检查评估成年男性人群勃起功能障碍的病因。
在单一中心进行一项回顾性研究。纳入2014年7月至2016年6月间出现勃起功能障碍主诉并接受阴茎多普勒超声检查的所有患者。所有检查均使用GE Voluson S6和GE Logiq P5设备进行。在进行基线扫描后，海绵体内注射20μg前列腺素E1。测量每条海绵体动脉的收缩期峰值速度和舒张末期速度。收缩期峰值速度<25cm/s的患者被认为存在动脉供血不足，而舒张末期速度>5cm/s被认为提示静脉功能不全。
97例患者（平均年龄37.09±11.59岁；范围19至69岁）中，50例（51.5%）结果正常，24例（24.7%）存在动脉供血不足，15例（15.5%）存在静脉漏，8例（8.2%）患者存在动脉供血不足合并静脉漏。≤40岁患者中心理性勃起功能障碍显著更高，而>40岁患者中存在或不存在静脉漏的动脉供血不足显著更高（p = 0.022）。
大多数研究对象未显示出勃起功能障碍的器质性病因，从而证实心理性病因的高患病率，尤其是在相对年轻的个体中。
