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Int Neurourol J > Accepted Articles
DOI:    [Accepted]
The Video-Urodynamic and Electrophysiological Characteristics in Patients With Traumatic Spinal Cord Injury
Zhaoxia Wang1, Han Deng2,3, Li Wan2,3, Yue Wang2,3, Xing Li2,3, Limin Liao2,3
1Department of Rehabilitation Medicine, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
2Department of Urology, China Rehabilitation Research Centre, Rehabilitation School of Capital Medical University, Beijing, China
3Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
Correspondence  Limin Liao ,Email:
Submitted: 6 October 2020;  Accepted after revision: 23 December 2020.
To investigate the video-urodynamic and pelvic floor electrophysiological characteristics in patients with traumatic spinal cord injury.
This retrospective reviewed the clinical records, urodynamic and pelvic floor electrophysiological data of 647 patients with traumatic spinal cord injury (SCI) and out of spinal shock. Patients were classified based on American Spinal Injury Association (ASIA) Impairment Scale and urodynamic findings.
Of the 647 patients, detrusor overactivity (DO) with or without detrusor sphincter dyssynergia (DSD) was found in 79.5%, 61%, 35.2%, 35%, and 19.2% of patients with cervical, thoracic (T1-9), thoracic (T10-12), lumbar, and conical cauda injury, respectively. Other patients manifested detrusor areflexia (DA). Patients with DO and/or DSD had a longer duration of SCI at each injury level than patients with DA. In suprasacral injury patients with DA, 63.0% (58/92) had a normal bulbocavernosus reflex (BCR) response. Compared with patients without bladder sensation, bladder capacity during urine leakage was far higher in those with bladder sensation. The manifestation of BCR and somatosensory-evoked potential (SEP) was associated with the level of injury.
This study showed a significant correlation between the level of SCI and video-urodynamic findings, but clinical examination cannot by predict bladder function; urodynamic testing is also necessary. In addition, the role of BCR and SEP for guiding bladder management is limited. Moreover, bladder sensation is important for urinary control in patients with traumatic SCI.
Keywords: traumatic spinal cord injury; video-urodynamic findings; pelvic floor electrophysiological data
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