Aspectos urodinámicos de la incontinencia urinaria femenina tratada con cabestrillos / Urodynamic Aspects of Feminine Urinary Incontinence Treated with Slings

Objetivos: El tratamiento de la incontinencia urinaria de esfuerzo (IUE) femenina con cabestrillos pretende suplir la función de los ligamentos dañados, favoreciendo la transmisión correcta de las tensiones. Nuestro objetivo es determinar qué variables preoperatorias pueden predecir el resultado del tratamiento quirúrgico de la IUE y estudiar los cambios urodinámicos que produce la cirugía. Material y métodos: 139 mujeres (edad =61,7; σ =10,88) intervenidas por IUE fueron estudiadas retrospectivamente. En 118 casos (84,8%) se utilizaron técnicas de cabestrillo (TVT, TOT, TVT-Safyre, REEMEX). Se realizó evaluación clínica y vídeo-urodinámica completa preoperatoria y a los tres meses de cirugía. Se realizó tratamiento estadístico (test de Fisher, Wilcoxon, Friedman, «t» de Student y χ2 Pearson) y análisis de regresión logística multivariante mediante método de eliminación por pasos. Resultados: Postoperatoriamente disminuyó la IUE (p=0,000) y el síndrome de hiperactividad vesical (p=0,001). Los porcentajes de éxito (ausencia urodinámica de IUE) para cada técnica fueron: TVT-Safyre (75%), TOT (73%), TVT (60%) y REEMEX (57%), sin diferencias significativas. La edad (punto de corte ROC 61 años) fue factor pronóstico de éxito (p=0,024). El flujo máximo (Qmáx) preoperatorio (16ml/s) constituyó el único parámetro urodinámico con valor predictivo (p=0,026) para éxito. Un cuello vesical abierto fue factor de riesgo para la persistencia de IUE postoperatoria (RR=2,78). Se comprobó disminución significativa de Qmáx postquirúrgico (p=0,017), sin aumento del residuo posmiccional ni de Wmáx. También se observó aumento de resistencia uretral (URA) poscirugía (p=0,004). Conclusiones: El Qmáx preoperatorio es el parámetro urodinámico pronóstico más importante en la cirugía de la IUE femenina, asociándose su normalidad a una mayor posibilidad de cura de la incontinencia. En los casos de flujo preoperatorio disminuido se desaconsejan los cabestrillos que más incrementan la resistencia uretral (REEMEX). La hiperactividad del detrusor preoperatoria no modifica significativamente los resultados de la cirugía de la IUE (AU)

Objectives: Treatment of feminine stress urinary incontinence (SUI) with slings aims to supplement the function of the damaged ligaments, favoring the correct transmission of the tensions. Our objective is to determine which preoperative variables could predict the outcome of surgical treatment of SUI and to study the urodynamic changes produced by the surgery. Material and methods: 139 women (age =61.7; σ=10.88) operated on due to SUI were studied retrospectively. In 118 cases (84.8%), sling techniques (TVT, TOT, TVT-Safyre, REEMEX) were used. Clinical evaluation and complete preoperative video -urodynamics were made pre-operatively and at 3 months of surgery. A statistical study (Fisher's test, Wilcoxon, Friedman, Student's T and Pearson's χ2) and analysis of multivariant logistic regression analysis by step elimination method were performed. Results: Post-operatively, the SUI (p=0.000) and bladder hyperactivity syndrome decreased. The success percentages (urodynamic absence of SUI) for each technique were: TVT-Safyre (75%), TOT (73%), TVT (60%) and REEMEX (57%), without significant differences. Age (ROC cut-off: 61 years) was a prognostic factor of success (p=0.024). Preoperative maximum flow (Qmax) (16ml/s) constituted the only urodynamic parameter with a predictive value for success (p=0.026). An open bladder neck was a risk factor for persistence of postoperative SUI (RR=2.78). A significant decrease of the postsurgical Qmax (p=0.017) was verified, without increase of the post micturation residue or of the Wmax. An increase of the postsurgical urethral resistance (UR) was also observed (p=0.004). Conclusions: The pre-operative Qmax is the most important urodynamic prognostic parameter in feminine SUI surgery, its normality being associated to a greater probability of cure of the incontinence. In the cases of decreased preoperative flow, use of slings that increase urethral resistance more (REEMEX) is not recommended. Hyperactivity of the preoperative detrusor does not significantly modify the results of surgery of the SUI (AU)

Participación de la inervación pudenda en la hiperactividad del detrusor y el síndrome de vejiga hiperactiva / Participation of the Pudendal Innervation in the Detrusor Overactivity of the Detrusor and in the Overactive Bladder Syndrome

Objetivos: La presencia de los síntomas funcionales de la fase de llenado y la hiperactividad del detrusor son dos disfunciones del tracto urinario inferior relacionadas entre sí. Pretendemos estudiar la participación de la lesión del nervio pudendo en ambas disfunciones urinarias. Material y métodos: Se realizó un estudio transversal de corte en una serie de 108 mujeres. El estudio consistió en un interrogatorio sobre la presencia de síntomas funcionales del tracto urinario inferior, cistomanometría y determinación del tiempo de latencia periférico del nervio pudendo, electromiografía selectiva del esfínter anal externo y determinación del tiempo de latencia del reflejo sacro. Resultados: Se observó una tendencia hacia la significación entre la presencia de polaquiuria y la amplitud de los potenciales de unidad motora (mayores en presencia de polaquiuria)y de la presencia de urgencia-incontinencia y el tiempo de latencia sacro (mayor en presenciade urgencia incontinencia), y una relación significativa entre la puntuación del King’s Health Questionnaire y el tiempo de latencia periférico del nervio pudendo. Respecto de la hiperactividad del detrusor se observó un mayor tiempo de latencia sacro en pacientes con hiperactividad con tendencia hacia la significación. Conclusiones: Existe una relación entre las alteraciones de la inervación pudenda y la presencia de síntomas de la fase de llenado e hiperactividad del detrusor. Esta relación explicaría la acción terapéutica de la rehabilitación perineal sobre estas disfunciones (AU)

Objectives: The functional symptoms of the filling phase and detrusor over activity are two inter-related dysfunctions of the lower urinary tract. We have aimed to study the participation of the lesion of the pudendal nerve in both urinary dysfunctions. Material and methods: A cross-sectional cutoff study in a series of 108 women was carried out. The study consisted in the questioning on the presence of functional symptoms of the lower urinary tract, cystomanometry and determination of peripheral pudendal nerve latency time, selective electromyography of the external anal sphincter and determination of the sacral reflexlatency time. Results: A tendency was observed towards significance between the presence of pollakiuria amplitude of motor unit potentials (greater in presence of pollakiuria) and the presence of urgency-incontinence and time of sacral latency (greater in the presence of urge incontinence) and a significant relation between the score on the King’s Health Questionnaire and peripheral pudendal nerve latency time. Regarding detrusor hyperactivity, greater sacral latency time was observed in patients with over activity with tendency towards significance. Conclusions: There is a relation between pudendal innervation alterations and presence of symptoms in the filling phase and detrusor over activity. This relation would explain the therapeutic action of the perineal rehabilitation on these dysfunctions (AU)

[Participation of the pudendal innervation in the detrusor overactivity of the detrusor and in the overactive bladder syndrome]. / Participación de la inervación pudenda en la hiperactividad del detrusor y el síndrome de vejiga hiperactiva.

OBJECTIVES: The functional symptoms of the filling phase and detrusor overactivity are two inter-related dysfunctions of the lower urinary tract. We have aimed to study the participation of the lesion of the pudendal nerve in both urinary dysfunctions. MATERIAL AND METHODS: A cross-sectional cutoff study in a series of 108 women was carried out. The study consisted in the questioning on the presence of functional symptoms of the lower urinary tract, cystomanometry and determination of peripheral pudendal nerve latency time, selective electromyography of the external anal sphincter and determination of the sacral reflex latency time. RESULTS: A tendency was observed towards significance between the presence of pollakiuria amplitude of motor unit potentials (greater in presence of pollakiuria) and the presence of urgency-incontinence and time of sacral latency (greater in the presence of urge incontinence) and a significant relation between the score on the King's Health Questionnaire and peripheral pudendal nerve latency time. Regarding detrusor hyperactivity, greater sacral latency time was observed in patients with overactivity with tendency towards significance. CONCLUSIONS: There is a relation between pudendal innervation alterations and presence of symptoms in the filling phase and detrusor overactivity. This relation would explain the therapeutic action of the perineal rehabilitation on these dysfunctions.

[Urodynamic aspects of feminine urinary incontinence treated with slings]. / Aspectos urodinámicos de la incontinencia urinaria femenina tratada con cabestrillos.

OBJECTIVES: Treatment of feminine stress urinary incontinence (SUI) with slings aims to supplement the function of the damaged ligaments, favoring the correct transmission of the tensions. Our objective is to determine which preoperative variables could predict the outcome of surgical treatment of SUI and to study the urodynamic changes produced by the surgery. MATERIAL AND METHODS: 139 women (age X =61.7; σ=10.88) operated on due to SUI were studied retrospectively. In 118 cases (84.8%), sling techniques (TVT, TOT, TVT-Safyre, REEMEX) were used. Clinical evaluation and complete preoperative video -urodynamics were made pre-operatively and at 3 months of surgery. A statistical study (Fisher's test, Wilcoxon, Friedman, Student's T and Pearson's χ(2)) and analysis of multivariant logistic regression analysis by step elimination method were performed. RESULTS: Post-operatively, the SUI (p=0.000) and bladder hyperactivity syndrome decreased. The success percentages (urodynamic absence of SUI) for each technique were: TVT-Safyre (75%), TOT (73%), TVT (60%) and REEMEX (57%), without significant differences. Age (ROC cut-off: 61 years) was a prognostic factor of success (p=0.024). Preoperative maximum flow (Qmax) (16 ml/s) constituted the only urodynamic parameter with a predictive value for success (p=0.026). An open bladder neck was a risk factor for persistence of postoperative SUI (RR=2.78). A significant decrease of the postsurgical Qmax (p=0.017) was verified, without increase of the post micturation residue or of the Wmax. An increase of the postsurgical urethral resistance (UR) was also observed (p=0.004). CONCLUSIONS: The pre-operative Qmax is the most important urodynamic prognostic parameter in feminine SUI surgery, its normality being associated to a greater probability of cure of the incontinence. In the cases of decreased preoperative flow, use of slings that increase urethral resistance more (REEMEX) is not recommended. Hyperactivity of the preoperative detrusor does not significantly modify the results of surgery of the SUI.