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Journal of the Korean Academy of Rehabilitation Medicine 2003;27(1):70-74.
Pudendal Somatosensory Evoked Potentials and Bulbocavernosus Reflex according to the Type of Neurogenic Bladder.
Kim, Yoon Tae , Kim, Joon Ki , Lee, Jina , Park, Dong Sik
Department of Rehabilitation Medicine, College of Medicine, The Catholic University of Korea.
신경인성 방광 형태에 따른 음부신경 체성감각유발전위와 구해면체 반사
김윤태, 김준기, 이진아
가톨릭대학교 의과대학 재활의학교실
Abstract
Objective
This study was purposed to reveal the differences of the findings of pudendal somatosensory evoked potential (PSEP) and electrophysiological bulbocavernosus reflex (EBCR) according to the type of neurogenic bladder.


Method
The subjects were 65 patients with neurogenic bladder. The causes of neurogenic bladder were consist of seven brain lesions; 39 spinal cord injuries; 15 cauda equina syndromes; and four peripheral polyneuropathies. PSEP and EBCR were done.


Results
Of the patients with hyperreflexic bladder (43.1%), PSEP latency was normal in 21.4%, delayed in 21.4%, and not obtainable in 57.2%. Of the patients with areflexic bladder (56.9%), PSEP latency was normal in 24.3%, delayed in 21.6%, and not obtainable in 54.1%. Of the patients with hyperreflexic bladder, EBCR latency was normal in 82.1%, delayed in 14.3%, and not obtainable in 3.6%. Of the patients with areflexic bladder, EBCR latency was normal in 16.2%, delayed in 37.8%, and not obtainable in 46.0% (p<0.01).


Conclusion
There was significant correlation between EBCR and type of neurogenic bladder, but not with PSEP. These results seem to be reflected from the neuro-anatomical lesion of the neurogenic bladder. (J Korean Acad Rehab Med 2003; 27: 70-74)

Key Words: Neurogenic bladder, Bulbocavernosus reflex, Pudendal somatosensory evoked potential, Detrusor hyperreflexia, Detrusor areflexia


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