Impact of three-dimensional endoanal ultrasound on the outcome of XXXX surgery: a prospective cohort study.

@entity1 @entity9292 @entity322
AIM: The aim of the study was to evaluate the impact of three-dimensional endoanal ultrasound (3D-EAUS) on postoperative outcome in @entity1 with @entity9292 . METHOD: This prospective study compared clinical and functional outcomes of @entity1 with and without preoperative 3D-EAUS examination 1  year after @entity9292 surgery. @entity1 were prospectively followed and evaluated by a standardized protocol including physical examination, the Wexner Incontinence Score (WIS) and anorectal manometry, at baseline and 1  year after surgery. RESULTS: A total of 196 @entity1 were enrolled. There were no significant differences in demographic and operative parameters, except for operation time, between the two groups. At 1  year follow-up, the overall recurrence rates were 8.8% (9/102) in the 3D-EAUS group and 13.8% (13/94) in the examination under anaesthesia (EUA) group. In the subgroup of @entity1 with complex fistulae, the recurrence rate was numerically lower in the 3D-EAUS group (12.8% vs 22.5%; P  =  0.26). The WIS in the EUA group significantly worsened (0.35      0.94 vs 1.07      1.59; P  =  0.003) with a decreased the number of fully continent @entity1 (82.5% vs 55%; P  =  0.008) while neither the WIS nor the proportion of fully continent @entity1 changed in the 3D-EAUS group. Fewer @entity1 in the 3D-EAUS group developed @entity322 postoperatively (6.7% vs 33.3%; P  =  0.012) and they had better maximum resting pressure and maximum squeeze pressure than the EUA group. CONCLUSIONS: Preoperative use of 3D-EAUS had a favourable impact on the outcome of surgical treatment for anal fistulae, especially in those with @entity9292 . It should be routinely used in the clinical setting.
