[Is there a correlation between abdominal leak pressure point, incontinence severity and quality of life in patients with stress urinary incontinence?].

Objectives: To evaluate if there is a correlation between the abdominal leak pressure point (ALPP) of the urodynamic study and several tools to evaluate severity and quality of life associated to stress urine incontinence (SUI).

Methods: Prospective correlation study of women referred to urodynamic study for stress urinary incontinence in Centro Urológico Profesor Bengió between September 2014 and October 2015. Anamnesis, physical examination (where the SUI was demonstrated), ICIQSF urine incontinence questionnaire and incontinence impact questionnaire (IIQ-7) were performed to every patient. Uroflowmetry and complete urodynamic study were performed in all cases. Intrinsic sphincter deficiency (ISD) was defined as ALPP value ≤ 60 cm H2O. The relation between abdominal leak pressure point (ALPP) and incontinence severity measurements and quality of life (daily protectors, Sandvik score, ISIQ-SF score and short IIQ7 score) was evaluated with the Spearman coefficient correlation.

Results: 105 females were studied. Mean ALPP was 84 H2O cm (30-170). 21 and 84 patients had ALPP values lower and higher than 60 H2O cm respectively. There were no differences between the groups when general and demographic characteristics were evaluated. No correlation between ALPP and incontinence severity measurements was demonstrated: daily protectors (ρ 0.10; p NS), Sandvik severity score (ρ 0.05; p NS), ISIQ-SF score (ρ 0.0004; p NS) and IIQ7 Score (ρ 0.06; p NS). When patients with IED (ALPP ≤ 60 cm H2O) and those without IED DEI (ALPP > 60 cm H2O) were analyzed, there was no statistically significant difference between the groups in the comparison according to severity and quality of life questionnaires.

Conclusions: In this series, there is not a significant correlation between abdominal leak pressure point and severity and quality of life measurements in patients with stress urinary incontinence.