Resiniferatoxin for detrusor instability refractory to anticholinergics



Título del documento: Resiniferatoxin for detrusor instability refractory to anticholinergics
Revista: International braz j urol
Base de datos: PERIÓDICA
Número de sistema: 000296642
ISSN: 1677-5538
Autores: 1




Instituciones: 1Universidade Estadual de Campinas, División de Urología, Campinas, Sao Paulo. Brasil
Año:
Periodo: Ene-Feb
Volumen: 30
Número: 1
Paginación: 53-58
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Caso clínico, analítico
Resumen en inglés PURPOSE: We have evaluated the clinical and urodynamic effects of intravesical instillation of resiniferatoxin in patients with idiopathic detrusor instability refractory to anticholinergics. MATERIALS AND METHODS: There were 30 women, median age 56 years old with detrusor instability for over 6 months and a history of anticholinergic use with no response or intolerable collateral effects. A 50 nM solution of resiniferatoxin was prepared for intravesical instillation. All patients were evaluated for urinary symptoms, as well as for urodynamic assessments before and 30 days after instillation. Tolerability was analyzed during the instillation. RESULTS: A clinical improvement was observed in 30% of the patients with urinary urgency and in 33% of the patients with urge-incontinence. The mean maximum cystometric capacity before application was 303.9 ± 78.9 and after application 341 ± 84.6. No significant difference was observed (p = 0.585). The mean maximum amplitude of the contractions diminished from 47.86 ± 29.64 to 38.72 ± 30.77 (p = 0.002). CONCLUSIONS: Resiniferatoxin, in this concentration, proved to be useful in a small percentage of patients regarding clinical detrusor instability. Maximum amplitude of the involuntary contractions was significantly reduced and in 33% patients the involuntary contractions disappeared. Further studies with different concentrations are recommended
Disciplinas: Medicina
Palabras clave: Cirugía,
Terapéutica y rehabilitación,
Vejiga,
Urodinámica,
Micción,
Toxinas
Keyword: Medicine,
Surgery,
Therapeutics and rehabilitation,
Bladder,
Urodynamics,
Urination,
Toxins
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