Mancini M, Bartolini M, Maggi M, Innocenti P, Forti G
Department of Clinical Physiopathology, University of Florence, Italy.
J Urol. 1996 Jun;155(6):1919-23.
Since penile arterial communications are present in a significant percentage of impotent patients, we evaluated whether peak systolic cavernous blood velocity after intracavernous prostaglandin E1 injection might be different in patients with and without arterial variants.
Cavernous blood flow was assessed with echo color Doppler ultrasound before and after intracavernous injection of prostaglandin E1 in 63 impotent patients. The penile shaft was accurately evaluated to detect arterial anatomical variants. Clinical erectile response was assessed by visual inspection and palpation.
Of 23 patients who obtained a full erection with full rigidity after prostaglandin E1 injection the cavernous peak blood velocities in 11 with penile arterial communications were significantly less than those in 12 without arterial communications.
The generally accepted limit of normal for cavernous peak blood flow obtained after prostaglandin E1 injection (greater than 25 to 30 cm. per second) must be interpreted carefully because lower peak blood velocities may be found in subjects with a full erectile response if arterial communications are present.
鉴于相当比例的阳痿患者存在阴茎动脉交通支，我们评估了海绵体内注射前列腺素E1后，有和没有动脉变异的患者的海绵体收缩期峰值血流速度是否存在差异。
对63例阳痿患者在海绵体内注射前列腺素E1前后，采用彩色多普勒超声评估海绵体血流。对阴茎干进行精确评估以检测动脉解剖变异。通过视诊和触诊评估临床勃起反应。
在23例注射前列腺素E1后获得完全勃起且硬度充分的患者中，11例有阴茎动脉交通支的患者海绵体峰值血流速度明显低于12例无动脉交通支的患者。
前列腺素E1注射后获得的海绵体峰值血流正常普遍接受的限度（大于25至30厘米/秒）必须谨慎解读，因为如果存在动脉交通支，有完全勃起反应的患者可能会发现较低的峰值血流速度。
