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Sonographic predictors of obstructive defecatory dysfunction.
International Urogynecology Journal 2015 March
INTRODUCTION AND HYPOTHESIS: We aimed to evaluate the association between obstructive defecatory symptoms in women with levator ani deficiency (LAD), worsened minimum levator hiatus measurements, widened anorectal angle (ARA), and increased levator-plate descent angle (LPDA).
METHODS: Using a cross-sectional study design, patients who had undergone 3D endovaginal ultrasound (3D EVUS) imaging of the pelvic floor were sampled and categorized into two groups: those with and those without obstructive defecatory symptoms (ODS) based on their Colorectal and Anal Distress Index (CRADI-8) questionnaire. The levator ani (LA) muscle was scored based on severity of defect. ARA and LPDA were measured and dichotomized (ARA ± 170°; LPDA ± 9°.
RESULTS: One hundred patients were analyzed: 52 asymptomatic and 48 with ODS. The mean (standard deviation ) age was 59 years (SD ±14.97). There was no difference in the distribution of LAD severity between groups (p = 0.1438) or mean minimal levator hiatus (MLH) (p = 0.3326). ARA and LPDA were significantly different in those with ODS compared with their asymptomatic counterparts (p < 0.0001 and 0.0004, respectively) (Table 1). On multivariable logistic regression, ARA and LPDA were included in the final model. Patients with an ARA >170° had seven times the odds of ODS than those with ARA ≤170° [odds ratio (OR) = 7.01, 95 % confidence interval (CI) 2.30-21.35; p = 0.0006). Patients with an LPDA <9° had 3 times the odds of ODS than those with an LPDA ≥9° (OR = 3.30, 95 % CI 1.22, 8.96, p = 0.0190).
CONCLUSIONS: This study demonstrates that increased levator plate descent and widened ARA as measured on 3D endovaginal ultrasound imaging are associated with ODS.
METHODS: Using a cross-sectional study design, patients who had undergone 3D endovaginal ultrasound (3D EVUS) imaging of the pelvic floor were sampled and categorized into two groups: those with and those without obstructive defecatory symptoms (ODS) based on their Colorectal and Anal Distress Index (CRADI-8) questionnaire. The levator ani (LA) muscle was scored based on severity of defect. ARA and LPDA were measured and dichotomized (ARA ± 170°; LPDA ± 9°.
RESULTS: One hundred patients were analyzed: 52 asymptomatic and 48 with ODS. The mean (standard deviation ) age was 59 years (SD ±14.97). There was no difference in the distribution of LAD severity between groups (p = 0.1438) or mean minimal levator hiatus (MLH) (p = 0.3326). ARA and LPDA were significantly different in those with ODS compared with their asymptomatic counterparts (p < 0.0001 and 0.0004, respectively) (Table 1). On multivariable logistic regression, ARA and LPDA were included in the final model. Patients with an ARA >170° had seven times the odds of ODS than those with ARA ≤170° [odds ratio (OR) = 7.01, 95 % confidence interval (CI) 2.30-21.35; p = 0.0006). Patients with an LPDA <9° had 3 times the odds of ODS than those with an LPDA ≥9° (OR = 3.30, 95 % CI 1.22, 8.96, p = 0.0190).
CONCLUSIONS: This study demonstrates that increased levator plate descent and widened ARA as measured on 3D endovaginal ultrasound imaging are associated with ODS.
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