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Vol. 37. Issue 3.
Pages 167-173 (March 2013)
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Vol. 37. Issue 3.
Pages 167-173 (March 2013)
Original article
Surgical treatment options in bulbar urethral stenosis
Opciones de tratamiento quirúrgico en la estenosis de uretra bulbar
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1028
J.C. Regueiro
Corresponding author
jcregueirolopez@gmail.com

Corresponding author.
, J.C. Carrasco, J. Alvarez, R. Prieto, M.E. Leva, M.J. Requena
Servicio de Urología, Hospital Reina Sofía, Córdoba, Spain
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Abstract
Objective

To review the outcome of bulbar urethroplasty using two stage surgical techniques.

Material and methods

Twenty-two of the 35 patients studied corresponded to end-to-end urethroplasty (ATT) and 13 to dorsal onlay graft (DOG) in preputial skin or oral mucosa variants. Clinical outcome was considered a failure when postoperative surgery was needed or the uroflowmetry was less than 15ml/s. The following variables were studied: age, previous surgery, number of urethrotomies and stricture length. The curves and log-rank curves using the log-rank were elaborated for follow-up and comparison, with the Cox regression model for risk factors.

Results

Mean follow-up was 40.02 months. Of all the cases, 85.71% were successful. Of these, 86.36% were in the ATT group and 84.61% in the DOG group. There were no significant differences in the comparative LR test based in stricture length, previous surgery between both group and individualized for each management. The Cox regression model showed a risk of failure in the technique for the elderly patients (OR 2.2), it is not achieving statistical significance in the remaining variables.

Conclusions

The success rate achieved with the ATT technique is verified a gold standard option in short strictures. The DOG is shown as a valid option in long strictures in bulbar urethral in medium follow-up, using an oral mucosa or preputial onlay graft. More long-term follow-up must be performed with a greater number of patients to better evaluate these results.

Keywords:
Urethra
Urethroplasty
Urethral stricture
Reconstructive urethral surgical procedures
Resumen
Objetivo

Revisar los resultados de la uretroplastia bulbar utilizando dos técnicas quirúrgicas.

Material y métodos

De 35 pacientes estudiados, 22 corresponden a técnica de anastomosis término-terminal (ATT) y 13 a técnica de injerto libre dorsal (ILD) en sus variantes prepucial y bucal. En el seguimiento clínico se consideró fallo la necesidad de tratamiento quirúrgico o una flujometría inferior a 15ml/sg. Se estudian las variables: edad, cirugía previa, número de uretrotomías previas y longitud de estenosis. Se elaboran curvas de seguimiento y comparativas de log-rank (LR), con modelo de regresión Cox para factores de riesgo.

Resultados

La media de seguimiento fue de 40,02 meses. Del total de casos el 85,71% fueron considerados éxito, un 86,36% en el grupo de ATT y un 84,61% en el grupo de ILD. No hubo diferencias significativas en las comparativas LR de longitud de estenosis, cirugía previa entre ambos grupos e individualizado para cada grupo de tratamiento. El modelo de regresión de Cox muestra un mayor riesgo de fallo en la técnica en aquellos pacientes de mayor edad (OR: 2,2), no alcanzando significación en el resto de variables.

Conclusiones

Las tasas de éxito alcanzadas con el procedimiento ATT la ratifican como técnica de elección en estenosis corta, mostrando las estenosis largas de uretra bulbar un buen manejo u opción válida a medio plazo mediante injerto dorsal libre prepucial o bucal. Sería aconsejable realizar seguimientos a más largo plazo con mayor número de pacientes.

Palabras clave:
Uretra
Uretroplastia
Estenosis de uretra
Procedimientos reconstructivos de uretra

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