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Treating neurogenic detrusor overactivity in order to manage autonomic dysreflexia - A systematic review.

Ba Thien Le·Pierre Denys·Charles Joussain
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Abstract

INTRODUCTION: Autonomic dysreflexia (AD) is a severe and potentially life-threatening complication of a spinal cord injury (SCI), particularly in patients with lesions at or above the sixth thoracic level. Neurogenic detrusor overactivity (NDO) is one of the main triggering factors. The impact of NDO treatment on AD remains insufficiently clarified. METHODS: We conducted a systematic review of the literature in PubMed and Cochrane Database between January 1990 and May 2025. Eligible studies included patients with SCI and AD undergoing treatment for NDO, including antimuscarinics, botulinum toxin (BTX) or augmentation cystoplasty. The primary outcome was the assessment of systolic blood pressure (SBP) parameters in patients undergoing cystomanometry. RESULTS: Of the thirteen eligible studies, only five were included. No study evaluated augmentation cystoplasty. One study (12 patients) evaluating fesoterodine and four studies (95 patients) evaluating BTX injection demonstrated improved urodynamic parameters and a decrease in severity of AD during urodynamic studies and in daily life. Improvements in AD-HR-QoL and I-QoL scores were also demonstrated. DISCUSSION: Controlling NDO with fesoterodine or BTX injection reduces the prevalence and severity of AD, likely by limiting abnormal C-fiber recruitment and reducing neurogenic inflammation. BTX additionally modulates TRPV1-expressing afferents, which further reduces AD risk. Although hypertensive peaks improve, submaximal parameters remain unchanged, highlighting the need for additional complementary strategies. CONCLUSION: The use of BTX and fesoterodine for NDO treatment effectively reduces AD episodes in patients with SCI. Further long-term studies are needed to confirm the cardiovascular benefits and inform future therapeutic strategies.

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HumansAutonomic DysreflexiaUrinary Bladder, OveractiveSpinal Cord InjuriesUrinary Bladder, NeurogenicMuscarinic AntagonistsBotulinum ToxinsAntimuscarinicsAutonomic dysreflexiaBotulinum toxinNeurogenic detrusor overactivitySpinal cord injuryJournal ArticleSystematic Review

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Ba Thien Le, Pierre Denys, Charles Joussain. 2026-07-08. Treating neurogenic detrusor overactivity in order to manage autonomic dysreflexia - A systematic review.. https://doi.org/10.1016/j.autneu.2026.103454

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