Kaiho Y, Namima T, Aizawa M, Nakagawa H, Uchi K, Orikasa S
Department of Urology, Tohoku University School of Medicine.
Nihon Hinyokika Gakkai Zasshi. 2000 Sep;91(9):641-4. doi: 10.5980/jpnjurol1989.91.641.
A 59-year-old man with spinal arteriovenous malformation at L-1 level was referred to our clinic for urinary retardation and urinary protraction. Bulbocavernosus reflex (BCR) was performed at empty bladder and at the storage phase during cystometry. BCR was evoked by compressing the glans penis. The evoked reflexes were examined by palpatating the contractile responses of the bulbocavernosus muscle and bipolar surface electrodes on each side of para-perineal raphe. Evoked response of BCR couldn't be detected at empty bladder, but obvious responses of BCR were detected at about 300 ml bladder filled. For further evaluation, a concentric needle electrode was inserted into the periurethral striated muscle to examine the evoked potential of BCR. The responses were unstable at empty bladder, but stable evoked potentials were obtained at storage phase. BCR performed only at empty bladder may cause false negative result.
一名59岁男性，L1水平存在脊髓动静脉畸形，因排尿迟缓及尿潴留转诊至我院门诊。在膀胱空虚时及膀胱测压储尿期进行球海绵体反射（BCR）检查。通过挤压阴茎头诱发BCR。通过触诊球海绵体肌的收缩反应以及会阴缝两侧的双极表面电极来检查诱发反射。膀胱空虚时未检测到BCR的诱发反应，但膀胱充盈约300 ml时检测到明显的BCR反应。为进一步评估，将同心针电极插入尿道周围横纹肌以检查BCR的诱发电位。膀胱空虚时反应不稳定，但在储尿期获得了稳定的诱发电位。仅在膀胱空虚时进行BCR检查可能会导致假阴性结果。
