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Urology. 2000 Oct 1;56(4):565-8.

Clinical significance of detrusor sphincter dyssynergia type in patients with post-traumatic spinal cord injury.

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  • 1Department ofUrology, University of Tennessee-Memphis, Memphis, Tennessee, USA.



To investigate the significance of categorizing detrusor sphincter dyssynergia (DSD) by type in patients with chronic spinal cord injury.


A retrospective review of the charts, video-urodynamic studies, and upper tract radiographic studies of 269 patients with post-traumatic, suprasacral spinal cord injuries was performed. The patients were categorized according to the DSD type (intermittent or continuous), level and completeness of injury, intravesical pressure at leak, upper tract complications, and interval since injury.


Of the 269 patients, 20 (7.4%), 216 (80.3%), and 33 (12.3%) had no DSD, intermittent DSD, and continuous DSD, respectively. No significant association between the specific level of injury and the DSD type was found (P = 0.71). The presence of DSD was associated with complete injuries, elevated intravesical pressures, and upper tract complications (P <0.01); these associations were more prominent with continuous DSD than with intermittent DSD. The proportion of patients with no DSD, intermittent DSD, and continuous DSD was unchanged during the chronic follow-up period.


The clinical significance of DSD type is not crucial, since patients with both intermittent and continuous DSD require urodynamic surveillance and expedient treatment to minimize urologic complications. However, the presence of continuous DSD is one of several factors that may require earlier urodynamic follow-up.

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