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Updated: Dec 22, 2025

Author Spotlight: Enhanced Urodynamic Method for Precise Urine Measurement in Awake Mice with Neurogenic Bladder
Published on: June 7, 2024
Urinary Symptoms and Bladder Dysfunction in Patients with Neuromyelitis Optica Spectrum Disorders: Evaluation with
Anupam Gupta1, Alisseril Sivaram1, Rashmi Krishnan1
1Department of Neurological Rehabilitation, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India.
Abstract:
Objective To assess lower urinary tract symptoms (LUTSs) in patients with neuromyelitis optica spectrum disorders (NMOSDs) and bladder dysfunction through urodynamics (filling and voiding phase of cystometrography) and management based on findings. Patients and Methods The study included 42 (34 females) patients admitted to the rehabilitation department. Neurologic evaluation was performed and severity of myelitis was assessed using the American Spinal Injury Association Impairment Scale. All patients underwent urodynamics, and management was based on the findings. Results Mean age was 34.5 years (range: 11-64 years; standard deviation: 13.1). Twenty-three (54.8%) patients had a first episode of myelitis, whereas 19 patients had relapses (number of episodes varying from 2 to 7). Eleven (26%) patients had increased frequency, 16 (37%) had urgency, 12 (28%) had urge incontinence, 8 (18.6%) had stress incontinence, 22 (52.4%) had nocturia, 31 (72%) had retention of urine, 22 (52.4%) had incomplete evacuation, and 14 (33.3%) patients had mixed urinary complaints. The common urodynamic findings were neurogenic detrusor overactivity (NDO) with detrusor-sphincter dyssynergia (DSD) in 14 (33.3%) patients, NDO without DSD in 8 (19%), and acontractile detrusor in 20 (47.6%). Pharmacotherapy was advised to 22 (52.4%) patients, whereas clean intermittent catheterization (CIC)/self-catheterization was advised to 39 (92.9%) patients. Conclusions Urinary retention was observed to be the most common urinary complaint in patients with NMOSD followed by NDO with or without sphincter dyssynergia. Urodynamics should be performed in all patients with LUTSs for best management. CIC remains the gold standard for the management of neurogenic bladder dysfunction.
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The Micturition Reflex
The process begins with bladder filling, where the bladder wall stretches as urine accumulates. This stretching activates the urine storage reflex, mediated by the sacral spinal segments and the pontine storage center. Efferent sympathetic impulses stimulate the detrusor muscle to relax and the internal urethral sphincter to contract, facilitating...

