Sarica Y, Karacan I, Thornby J I, Hirshkowitz M
Electroencephalogr Clin Neurophysiol. 1986 Mar;65(2):130-5. doi: 10.1016/0168-5597(86)90045-6.
Cerebral responses after bipolar stimulation (BpS) and monopolar stimulation (MpS) of the vesico-urethral junction (VUJ), as well as skin surface stimulation of various hip and pelvic structures, were recorded in 13 normal control subjects. BpS of VUJ produced cerebral evoked potentials (CEPs) with a negative peak (mean latency 88.69 +/- 13.73 msec) following a smaller positive deflection, while MpS of the same sites with indifferent electrodes placed on various pelvic or hip structures resulted in different response latencies that were all significantly shorter than those of BpS. Shape and latency of responses after MpS of VUJ were similar to those elicited by skin surface stimulation of the abdominal wall and the iliac crest; those elicited by pudendal nerve stimulation at the glans were also similar in shape but significantly greater in latency. Results strongly indicate that during MpS of VUJ the somatic or muscle afferents located in the hip and pelvic region are stimulated; consequently, BpS technique should be considered the preferred technique for investigating the physiological condition of visceral afferents arising from VUJ.
在13名正常对照受试者中记录了膀胱尿道连接部（VUJ）进行双极刺激（BpS）和单极刺激（MpS）以及对各种髋部和骨盆结构进行皮肤表面刺激后的大脑反应。VUJ的BpS产生大脑诱发电位（CEP），在较小的正向偏转后出现负向峰值（平均潜伏期88.69±13.73毫秒），而在不同骨盆或髋部结构上放置无关电极对相同部位进行MpS时，会产生不同的反应潜伏期，且均明显短于BpS的潜伏期。VUJ进行MpS后的反应形状和潜伏期与腹壁和髂嵴皮肤表面刺激所引发的相似；阴茎头阴部神经刺激所引发的反应形状也相似，但潜伏期明显更长。结果强烈表明，在VUJ进行MpS时，位于髋部和骨盆区域的躯体或肌肉传入神经受到刺激；因此，BpS技术应被视为研究源于VUJ的内脏传入神经生理状况的首选技术。
