Comparison of vector symmetry index and endoanal ultrasonography in the diagnosis of anal sphincter disruption

Show simple item record

dc.contributor.author Samarasekera, D. N.
dc.contributor.author Wright, Y.
dc.contributor.author Lowndes, R. H.
dc.contributor.author Stanley, K. P.
dc.contributor.author Preston, P.
dc.contributor.author Speakman, C. T. M.
dc.date.accessioned 2021-08-24T05:21:01Z
dc.date.available 2021-08-24T05:21:01Z
dc.date.issued 2008
dc.identifier.citation Samarasekera, D. N., Wright, Y., Lowndes, R. H., Stanley, K. P., Preston, P., & Speakman, C. T. M. (2008). Comparison of vector symmetry index and endoanal ultrasonography in the diagnosis of anal sphincter disruption. Techniques in coloproctology, 12(3), 211-215. en_US
dc.identifier.uri http://archive.cmb.ac.lk:8080/xmlui/handle/70130/5785
dc.description.abstract Background Anal pressure vectography is an anorectal physiology study that evaluates the radial pressures in the anal canal from which a symmetry index that indicates the anatomical integrity of the anal sphincter can be calculated. However, there are conflicting opinions of its validity. Since endoanal ultrasonography (EAUS) has been recognized as the gold standard for detecting anal sphincter disruption, the aim of this pilot study was to observe whether a vector symmetry index (VSI) determined at the level of injury shown in EAUS has a better sensitivity than the overall VSI in detecting anal sphincter disruption. Methods A group of 11 women in whom EAUS had shown defects in both the internal and the external anal sphincters underwent anorectal manometry using a water-perfused vector manometry catheter, and the overall VSI and the VSI at the level of sphincter disruption (shown on EAUS) were calculated. Results Overall VSI at rest indicated internal sphincter injury in 7 women (64%) but the VSI at the level of disruption indicated internal sphincter injury in all 11 women (100%, p=0.0137). Similarly, the overall VSI at squeeze indicated external sphincter injury in 6 women (55%), but the VSI at the level of disruption indicated external sphincter injury in 10 women (91%, p=0.0049). Conclusions Our pilot study showed that EAUS and VSI are equally sensitive in diagnosing a localized anal sphincter defect, provided a segment-for-segment comparison is carried out. en_US
dc.language.iso en en_US
dc.publisher Springer-Verlag en_US
dc.subject Anal sphincter injury en_US
dc.subject Endoanal ultrasonography en_US
dc.subject Vector symmetry index en_US
dc.title Comparison of vector symmetry index and endoanal ultrasonography in the diagnosis of anal sphincter disruption en_US
dc.type Article en_US


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search DSpace


Advanced Search

Browse

My Account