Sensations Reported During Urodynamic Bladder Filling in Spinal Cord Injury Patients Give Additional Important Information
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Purpose: This study investigated the sensations reported during filling cystometry in patients with spinal cord lesions (SCLs) of different levels and completeness. Methods: In this retrospective cohort study, information was gathered on patients’ age and sex, cause of SCL, American Spinal Injury Association Impairment Scale (AIS), and lower urinary tract-related sensations in daily life. Filling cystometry (videourodynamics) was performed following the International Continence Society Good Urodynamic Practice Guidelines. In addition to bladder filling sensations (first sensation of bladder filling, first desire to void, strong desire to void), other sensations, such as detrusor overactivity related sensation and pain, were noted. Results: In total, 170 patients were included (age, 45±17 years; 114 males and 56 females, 92 with complete and 78 with incomplete SCL). The test was done 6±4 years post-SCL. Sensation was reported by 57% of all patients. Half of the patients with complete SCL (46 of 92) had sensation, while 36% of those with incomplete SCL (28 of 78) reported no sensation. Bladder awareness was not predictable by the AIS. The filling sensations reported were equivalent to those given in the terminology of ICS. Pain was seldom present (6%, 10 of 170), and detrusor overactivity contraction was felt by 45 of 78 (58%). Very few patients used sensory information for bladder management at home. Conclusions: After SCL, most patients retained the ability to be aware of the lower urinary tract, and were assessable and gradable during urodynamic testing. The filling sensations were not different from those described in healthy individuals, but the number and sequence of the sensations were altered in a minority of patients. Pain and a sensation of unstable contractions gave additional important information. As different sensations relate to different spinal afferent pathways, the sensory evaluation during cystometry provided additional important information on the spinal cord’s condition.
Abstract
Purpose: This study investigated the sensations reported during filling cystometry in patients with spinal cord lesions (SCLs) of different levels and completeness. Methods: In this retrospective cohort study, information was gathered on patients’ age and sex, cause of SCL, American Spinal Injury Association Impairment Scale (AIS), and lower urinary tract-related sensations in daily life. Filling cystometry (videourodynamics) was performed following the International Continence Society Good Urodynamic Practice Guidelines. In addition to bladder filling sensations (first sensation of bladder filling, first desire to void, strong desire to void), other sensations, such as detrusor overactivity related sensation and pain, were noted. Results: In total, 170 patients were included (age, 45±17 years; 114 males and 56 females, 92 with complete and 78 with incomplete SCL). The test was done 6±4 years post-SCL. Sensation was reported by 57% of all patients. Half of the patients with complete SCL (46 of 92) had sensation, while 36% of those with incomplete SCL (28 of 78) reported no sensation. Bladder awareness was not predictable by the AIS. The filling sensations reported were equivalent to those given in the terminology of ICS. Pain was seldom present (6%, 10 of 170), and detrusor overactivity contraction was felt by 45 of 78 (58%). Very few patients used sensory information for bladder management at home. Conclusions: After SCL, most patients retained the ability to be aware of the lower urinary tract, and were assessable and gradable during urodynamic testing. The filling sensations were not different from those described in healthy individuals, but the number and sequence of the sensations were altered in a minority of patients. Pain and a sensation of unstable contractions gave additional important information. As different sensations relate to different spinal afferent pathways, the sensory evaluation during cystometry provided additional important information on the spinal cord’s condition.
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