Electrical Stimulation of the Urethra Evokes Bladder Contractions in a Woman With Spinal Cord Injury
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Le résumé fourni par la source
OBJECTIVE: Electrical stimulation of pudendal urethral afferents generates coordinated micturition in animals and bladder contractions in men after spinal cord injury (SCI), but there is no evidence of an analogous excitatory urethra-spinal-bladder reflex in women. The objective of this study was to determine whether electrical stimulation of the urethra could evoke bladder contractions in a woman with SCI. CASE REPORT: A 38-year-old woman with a C6 ASIA A SCI who managed her bladder with clean intermittent catheterization and oxybutynin demonstrated neurogenic detrusor overactivity on urodynamics. Oxybutynin was discontinued 2 days prior to urodynamic testing with a custom 12F balloon catheter mounted with ring-shaped electrodes located in the bladder neck, mid urethra, and distal urethra. The inflated balloon was placed against the bladder neck to stabilize the catheter electrodes in place along the urethra. However, the balloon limited emptying during contractions. Urodynamics were performed at a filling rate of 25 mL/minute until a distention-evoked bladder contraction was observed. The urethra was stimulated over a range of bladder volumes and stimulus parameters to determine whether electrical stimulation could evoke a bladder contraction. FINDINGS: Electrical stimulation via urethral electrodes evoked bladder contractions that were dependent on bladder volume (>70% capacity) and the intensity of stimulation. CONCLUSIONS: This is the first report of an excitatory urethra-spinal-bladder reflex in a woman with SCI. Future studies will determine whether this reflex can produce bladder emptying.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Electrical Stimulation of the Urethra Evokes Bladder Contractions in a Woman With Spinal Cord Injury
- Date Crossref
- 01/01/2010
- Éditeur
- Informa UK Limited
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Carolinas Medical Center pays non établi dans la noticeÉtablissement de santé
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Charlotte Sports Medicine Institute pays non établi dans la noticeÉtablissement de santé
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OrthoCarolina Research Institute pays non établi dans la noticeOrganisation à but non lucratif
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Duke University Department of Biomedical Engineering pays non établi dans la noticeUniversité ou école supérieure
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Charlotte Institute of Rehabilitation Urology Department pays non établi dans la noticeStructure de recherche
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Department of Urology pays non établi dans la noticeInstitution
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NDI Medical LLC pays non établi dans la noticeInstitution
Carolinas Medical Center, Charlotte Sports Medicine Institute et OrthoCarolina Research Institute, avec 4 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.