负压吸引对阴茎海绵体动脉血流影响的研究  

A study on the effects of vacuum constriction device on penile cavernous arterial fluid

作　　者：班德文[1] 张滨[1] 齐涛[1] 杨春亭[1] 金明昱[1] 

机构地区：[1]中山大学附属第三医院,广东广州510630

出　　处：《中国性科学》2008年第11期3-4,12,共3页Chinese Journal of Human Sexuality

摘　　要：利用手握式负压吸引器对阴茎进行间断抽吸并彩色多普勒超声探测12例心理性勃起功能障碍患者会阴部阴茎海绵体动脉直径、血流速度、血流阻力指数等,根据公式:τm=η×4×Vm/Dr计算阴茎勃起各阶段的动脉血流剪切力。结果表明负压吸引前自然状态下双侧海绵体动脉血流剪切力(单位dynes/cm2)平均13.40±4.58;负压吸引下阴茎Ⅱ度勃起状态的剪切力平均为15.64±4.62;Ⅳ度勃起状态下剪切力平均为15.66±4.03。阴茎II级勃起状态和Ⅳ级勃起状态平均剪切力较自然状态高,有统计学意义(P=0.032)、(P=0.047)。Ⅳ级勃起状态平均剪切力略高于II级勃起状态,但无统计学意义(P=0.985)。揭示彩色多普勒超声结合负压吸引器可动态检测阴茎海绵体动脉血流剪切力,负压吸引可增加阴茎动脉血流量。Use hand -grasp vacuum constriction device to suck penis discontinuously, and use color Doppler ultrasound to detect cavernous arterial diameter, flow speed and resistance index on the perineum of 12 patients with psychogenic erectile dysfunction. Then calculate the shear stress by the formula： τm=η×4×Vm/Dr. It is shown that the mean fluid shear stress （ Unit ： dynes/cm^2） of bilateral penile cavernous artery was 13.40 ± 4. 58 in the natural state without vacuum suction. The mean fluid shear stress were 15.64 ±4. 62 and 15.66 ±4.03 respectively when the erection achieve Ⅱ and Ⅳ degree state with vacuum constriction device. They were both higher than the stress in the natural state （ P = 0. 032） , （ P = 0. 047 ）. There was no significant difference（ P =0. 985 ）between Ⅱ and Ⅳ degree erectile state. It is found that the Color Doppler ultrasound combined with vacuum constriction device could detect penile cavernous arterial fluid shear stress dynamically, and it could reveal the phenomena that vacuum constriction device could increase blood flow volume of penile artery.

关 键 词：阴茎 血流剪切力 彩色多普勒超声 负压吸引器 

分 类 号：R698.104[医药卫生—泌尿科学] R698.1[医药卫生—外科学]